diff --git a/build/celcius b/build/celcius
deleted file mode 100755
index 08cd2e6..0000000
Binary files a/build/celcius and /dev/null differ
diff --git a/c_modern_approach/Arrays/exercies/8_1_exercises.c b/c_modern_approach/Arrays/exercies/8_1_exercises.c
deleted file mode 100644
index e789050..0000000
--- a/c_modern_approach/Arrays/exercies/8_1_exercises.c
+++ /dev/null
@@ -1,40 +0,0 @@
-#include <stdbool.h>
-#include <stdio.h>
-#define N 7
-#define FN 40
-
-void print_bool_array(bool *x, size_t size) {
-  printf("Array started with size == %zu\n", size);
-  for (int i = 0; i < size; i++) {
-    if (i == size - 1) {
-      printf("%d\nArray ended\n", x[i]);
-    } else {
-      printf("%d, ", x[i]);
-    }
-  }
-}
-
-void print_int_array(int *x, size_t size) {
-  printf("Array started with size == %zu\n", size);
-  for (int i = 0; i < size; i++) {
-    if (i == size - 1) {
-      printf("%d\nArray ended\n", x[i]);
-    } else {
-      printf("%d, ", x[i]);
-    }
-  }
-}
-
-void create_fibonacci_numbers() {
-  int fin_numbers[FN] = {1, 1};
-  for (int i = 2; i < FN; i++) {
-    fin_numbers[i] = fin_numbers[i - 1] + fin_numbers[i - 2];
-  }
-  print_int_array(fin_numbers, FN);
-}
-
-int main() {
-  bool weekend[N] = {[0] = true, [N - 1] = true};
-  print_bool_array(weekend, N);
-  create_fibonacci_numbers();
-}
diff --git a/c_modern_approach/Arrays/exercies/8_2_exercies.c b/c_modern_approach/Arrays/exercies/8_2_exercies.c
deleted file mode 100644
index 4d7d233..0000000
--- a/c_modern_approach/Arrays/exercies/8_2_exercies.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/**
- * @brief Itreation through array test
- */
-#include <stdio.h>
-void temps() {
-  int total_temp;
-  const int temperature_readings[24][30] = {
-      {25, 31, 19, 27, 22, 34, 28, 20, 33, 24, 29, 21, 26, 32, 23,
-       30, 35, 18, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47},
-      {41, 28, 34, 22, 36, 19, 31, 26, 43, 30, 24, 37, 20, 33, 27,
-       35, 23, 29, 32, 25, 38, 21, 40, 42, 44, 45, 46, 47, 48, 49},
-      {18, 33, 27, 39, 24, 43, 31, 35, 20, 26, 29, 22, 36, 28, 34,
-       21, 25, 30, 32, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 19},
-      {35, 22, 29, 41, 26, 31, 20, 33, 27, 24, 36, 28, 34, 21, 25,
-       30, 32, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 19, 23, 38},
-      {27, 34, 21, 25, 30, 32, 37, 40, 41, 42, 43, 44, 45, 46, 47,
-       48, 19, 23, 38, 35, 22, 29, 41, 26, 31, 20, 33, 24, 36, 28},
-      {40, 41, 42, 43, 44, 45, 46, 47, 48, 19, 23, 38, 35, 22, 29,
-       41, 26, 31, 20, 33, 27, 24, 36, 28, 34, 21, 25, 30, 32, 37},
-      {46, 47, 48, 19, 23, 38, 35, 22, 29, 41, 26, 31, 20, 33, 27,
-       24, 36, 28, 34, 21, 25, 30, 32, 37, 40, 41, 42, 43, 44, 45},
-      {19, 23, 38, 35, 22, 29, 41, 26, 31, 20, 33, 27, 24, 36, 28,
-       34, 21, 25, 30, 32, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48},
-      {38, 35, 22, 29, 41, 26, 31, 20, 33, 27, 24, 36, 28, 34, 21,
-       25, 30, 32, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 19, 23},
-      {22, 29, 41, 26, 31, 20, 33, 27, 24, 36, 28, 34, 21, 25, 30,
-       32, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 19, 23, 38, 35}};
-  for (int i = 0; i < 24; i++) {
-    printf("Row: %d\n", i);
-    for (int j = 0; j < 30; j++) {
-      printf("\tCell %d,value: %d\n", j, temperature_readings[i][j]);
-      total_temp += temperature_readings[i][j];
-    }
-  }
-  float average_temp = (float)total_temp / (24 * 30);
-  printf("Average temp: %.2f", average_temp);
-}
-int main() { temps(); }
diff --git a/c_modern_approach/Arrays/projects/1_project.c b/c_modern_approach/Arrays/projects/1_project.c
deleted file mode 100644
index db36b1d..0000000
--- a/c_modern_approach/Arrays/projects/1_project.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include <stdbool.h>
-#include <stdio.h>
-int main() {
-  bool digit_seen[10] = {false};
-  int seen_digits[10];
-  int iterator = 0;
-  int digit;
-  long n;
-
-  printf("Enter a number: ");
-  scanf("%ld", &n);
-
-  while (n > 0) {
-    digit = n % 10;
-    if (digit_seen[digit]) {
-      seen_digits[iterator] = digit;
-      iterator += 1;
-    }
-    digit_seen[digit] = true;
-    n /= 10;
-  }
-
-  if (iterator > 0) {
-    printf("Repeated digit(s): ");
-    for (int i = iterator - 1; i >= 0; i--) {
-      printf("%d ", seen_digits[i]);
-    }
-    printf("\n");
-  } else {
-    printf("No repeated digit\n");
-  }
-}
diff --git a/c_modern_approach/Arrays/projects/2_project.c b/c_modern_approach/Arrays/projects/2_project.c
deleted file mode 100644
index 30f27ff..0000000
--- a/c_modern_approach/Arrays/projects/2_project.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <stdbool.h>
-#include <stdio.h>
-int main() {
-  int occurence_counter[2][10] = {{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}};
-  long n;
-  int digit;
-  printf("Enter a number: ");
-  scanf("%ld", &n);
-
-  while (n > 0) {
-    digit = n % 10;
-    occurence_counter[1][digit] += 1;
-    n /= 10;
-  }
-
-  printf("Digit:\t\t");
-  for (int i = 0; i < 10; i++) {
-    printf("%d ", occurence_counter[0][i]);
-  }
-  printf("\nOccurrences:\t");
-  for (int i = 0; i < 10; i++) {
-    printf("%d ", occurence_counter[1][i]);
-  }
-}
diff --git a/c_modern_approach/Arrays/projects/3_project.c b/c_modern_approach/Arrays/projects/3_project.c
deleted file mode 100644
index 6b6bb5e..0000000
--- a/c_modern_approach/Arrays/projects/3_project.c
+++ /dev/null
@@ -1,45 +0,0 @@
-#include <ctype.h>
-#include <stdio.h>
-
-#define MAX_STRING_SIZE 100
-
-int main() {
-  char input[MAX_STRING_SIZE] = {};
-  char filtered[MAX_STRING_SIZE] = {};
-  int last_real_char = 0;
-  printf("Enter message: ");
-  fgets(input, MAX_STRING_SIZE, stdin);
-  for (int i = 0; i < MAX_STRING_SIZE - 1; i++) {
-    char current_char = toupper(input[i]);
-    if (current_char != 0) {
-      last_real_char = i;
-    }
-    switch (current_char) {
-    case 'A':
-      filtered[i] = '4';
-      break;
-    case 'B':
-      filtered[i] = '8';
-      break;
-    case 'E':
-      filtered[i] = '3';
-      break;
-    case 'I':
-      filtered[i] = '1';
-      break;
-    case 'O':
-      filtered[i] = '0';
-      break;
-    case 'S':
-      filtered[i] = '5';
-      break;
-    default:
-      filtered[i] = current_char;
-      break;
-    }
-  }
-  for (int i = last_real_char; i < last_real_char + 10; i++) {
-    filtered[i] = '!';
-  }
-  printf("Entered message: %s", filtered);
-}
diff --git a/c_modern_approach/Arrays/theory.c b/c_modern_approach/Arrays/theory.c
deleted file mode 100644
index 55a6308..0000000
--- a/c_modern_approach/Arrays/theory.c
+++ /dev/null
@@ -1,45 +0,0 @@
-#include <stddef.h>
-#include <stdio.h>
-#define N 10
-
-/**
- * @brief Function for printing the array elements
- *
- * @param x - pointer to array
- * @param size - size of an array
- */
-void print_bool_array(int *x, size_t size) {
-  printf("Array started with size == %zu\n", size);
-  for (int i = 0; i < size; i++) {
-    if (i == size - 1) {
-      printf("%d\nArray ended\n", x[i]);
-    } else {
-      printf("%d, ", x[i]);
-    }
-  }
-}
-
-int main() {
-  /* Array initialization */
-  int a[N] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
-  print_bool_array(a, N);
-
-  /* Partial array initialization */
-  int b[N] = {1, 23, 4};
-  print_bool_array(b, N);
-
-  /* Initialization without size */
-  int c[] = {10000000, 3, 4};
-  /* In print beneath we are calculating size of an array by taking the whole
-   * memory of array and dividing it by size of an element in it
-   */
-  printf("%lu : %lu\n", sizeof(c), sizeof(c[0]));
-  print_bool_array(c, sizeof(c) / sizeof(c[0]));
-  /* Designated initializers */
-  int d[N] = {[2] = 15, [9] = 10};
-  print_bool_array(d, N);
-
-  /* Designated initializers without fixed size */
-  int e[] = {[2] = 15, [9] = 10, [154] = 1};
-  print_bool_array(e, sizeof(e) / sizeof(e[0]));
-}
diff --git a/c_modern_approach/BasicTypes/theory.c b/c_modern_approach/BasicTypes/theory.c
deleted file mode 100644
index b6fe79b..0000000
--- a/c_modern_approach/BasicTypes/theory.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <stdio.h>
-
-typedef int Kekus;
-
-int main() {
-  unsigned kek;
-  kek = -9;
-  printf("%du\n", kek);
-
-  char ch1 = 'a';
-  char ch2 = 'A';
-  char ch3 = '0';
-  char ch4 = ' ';
-
-  printf("%c : %d\n", ch1, ch1);
-  printf("%c : %d\n", ch2, ch2);
-  printf("%c : %d\n", ch3, ch3);
-  printf("%c : %d\n", ch4, ch4);
-
-  Kekus pips = 192;
-  printf("%d\n", pips);
-}
diff --git a/c_modern_approach/Expressions/theory.c b/c_modern_approach/Expressions/theory.c
deleted file mode 100644
index 54f8634..0000000
--- a/c_modern_approach/Expressions/theory.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include <stdio.h>
-void undefined_subexpression() {
-  int b, c;
-  int a = 5;
-  c = (b = a + 2) - (a = 1);
-  printf("%d", c);
-}
-
-void comparison_unexpected() {
-  int i, j, k;
-  i = 10;
-  j = 2;
-  k = 0;
-  // This is equivalent of (i < j) < k because it is < is left-associated
-  // operator
-  printf("\n%d", i < j < k);
-}
-
-void switch_playground() {
-  int grade = 1;
-  switch (grade) {
-  /* case 0: */
-  /*   printf("Failint"); */
-  /*   break; */
-  /* case 1: */
-  /*   printf("Poor"); */
-  /*   break; */
-  /* case 2: */
-  /*   printf("Average"); */
-  /*   break; */
-  /* case 3: */
-  /*   printf("Good"); */
-  /*   break; */
-  /* case 4: */
-  /*   printf("Excelent"); */
-  /*   break; */
-  /* default: */
-  /*   printf("Illegal grade"); */
-  /*   break; */
-  /* } */
-  case 0: case 1: case 2: case 3: case 4:
-    printf("Allowed grades");
-    break;
-  default:
-    printf("Illegal grade");
-    break;
-  }
-}
-
-int main() {
-  int i = 5;
-  float k = 1.1;
-  float j = 10 * i + k;
-  printf("%f\n", j);
-  undefined_subexpression();
-  comparison_unexpected();
-  printf("\n");
-  switch_playground();
-}
diff --git a/c_modern_approach/Fundamentials/2_001_section.c b/c_modern_approach/Fundamentials/2_001_section.c
deleted file mode 100644
index 50c6781..0000000
--- a/c_modern_approach/Fundamentials/2_001_section.c
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <stdio.h>
-int main(void) {
-  printf("Privet Sashka kak dela");
-  return 0;
-}
-
-
diff --git a/c_modern_approach/Fundamentials/README.md b/c_modern_approach/Fundamentials/README.md
deleted file mode 100644
index ee24be2..0000000
--- a/c_modern_approach/Fundamentials/README.md
+++ /dev/null
@@ -1,14 +0,0 @@
-# Шаги запуска программы
-Preprocessing -> Compiling -> Linking
-
-## Preprocessing
-Первый шаг - команда попадает сюда. Тут препроцессор выполняет команды, которые начинаются с `#`. These commands are called **Directives**
-
-## Compiling
-After Preprocessing app goes to compiler where app is being translated into machine instructions (object code)
-
-## Linking
-Linker combines object code from step 2 with additional code needed for final executable. This code includes library functions
-
-P.S.: *Сори за микс языков, лень было переключаться в процессе*
-sdfaksdhfk
diff --git a/c_modern_approach/Fundamentials/exercises/2/s_2_1.c b/c_modern_approach/Fundamentials/exercises/2/s_2_1.c
deleted file mode 100644
index 971cede..0000000
--- a/c_modern_approach/Fundamentials/exercises/2/s_2_1.c
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <stdio.h>
-
-int main(void) { printf("hello, world\n"); }
diff --git a/c_modern_approach/Fundamentials/exercises/2/s_2_2.c b/c_modern_approach/Fundamentials/exercises/2/s_2_2.c
deleted file mode 100644
index e69de29..0000000
diff --git a/c_modern_approach/Fundamentials/exercises/2/s_2_4.c b/c_modern_approach/Fundamentials/exercises/2/s_2_4.c
deleted file mode 100644
index bf9f28a..0000000
--- a/c_modern_approach/Fundamentials/exercises/2/s_2_4.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <stdio.h>
-int main(void) {
-  float float_var_1, float_var_2, float_var_3;
-  int int_var;
-  printf("%f\n", float_var_1);
-  printf("%f\n", float_var_2);
-  printf("%f\n", float_var_3);
-  printf("%d", int_var);
-
-  int _100_bottles;
-  int one____hundred_bottles;
-  int bottles_;
-}
diff --git a/c_modern_approach/Fundamentials/exercises/2/s_2_7.c b/c_modern_approach/Fundamentials/exercises/2/s_2_7.c
deleted file mode 100644
index e69de29..0000000
diff --git a/c_modern_approach/Fundamentials/projects/2/main.c b/c_modern_approach/Fundamentials/projects/2/main.c
deleted file mode 100644
index 3f5f262..0000000
--- a/c_modern_approach/Fundamentials/projects/2/main.c
+++ /dev/null
@@ -1,108 +0,0 @@
-#include <math.h>
-#include <stdio.h>
-
-float calculate_volume(void) {
-  float radius;
-  printf("Hello from calculator\n");
-  printf("Please, enter the radius of circle in meters: ");
-  scanf("%f", &radius);
-  float division = 4.0 / 3.0;
-  float volume = division * M_PI * radius * radius * radius;
-  return volume;
-}
-
-float tax_calculator(void) {
-  float rubles, cents;
-  printf("Please, enter the rubles amount: ");
-  scanf("%f", &rubles);
-  printf("Please, enter the cents amount: ");
-  scanf("%f", &cents);
-  float result = (rubles + (cents / 100)) * 1.05;
-  return result;
-}
-
-void change_calculator(void) {
-  int rubles;
-  printf("Please, enter the rubles amount: ");
-  scanf("%d", &rubles);
-  /* In Russia, we have following bills:
-   * 5000 rubles
-   * 2000 rubles
-   * 1000 rubles
-   * 500 rubles
-   * 200 rubles
-   * 100 rubles
-   * 50 rubles
-   * 10 rubles
-   * 1 ruble - we actually does not have 1 ruble bill, but for the sake of
-   *  project we have
-   */
-  // Calculate for 5000
-  int _5k_bills = rubles / 5000;
-  // Remove this amount from total
-  rubles = rubles - _5k_bills * 5000;
-  // Calculate for 2000 for remeaning
-  int _2k_bills = rubles / 2000;
-  // Remove this amount from total
-  rubles = rubles - _2k_bills * 2000;
-  // Calculate for 1000 for remeaning
-  int _1k_bills = rubles / 1000;
-  // Remove this amount from total
-  rubles = rubles - _1k_bills * 1000;
-  // Calculate for 500 for remeaning
-  int _500_bills = rubles / 500;
-  // Remove this amount from total
-  rubles = rubles - _500_bills * 500;
-  // Calculate for 200 for remeaning
-  int _200_bills = rubles / 200;
-  // Remove this amount from total
-  rubles = rubles - _200_bills * 200;
-  // Calculate for 100 for remeaning
-  int _100_bills = rubles / 100;
-  // Remove this amount from total
-  rubles = rubles - _100_bills * 100;
-  // Calculate for 50 for remeaning
-  int _50_bills = rubles / 50;
-  // Remove this amount from total
-  rubles = rubles - _50_bills * 50;
-  // Calculate for 10 for remeaning
-  int _10_bills = rubles / 10;
-  // Remove this amount from total
-  rubles = rubles - _10_bills * 10;
-  // Print result
-  printf("5000 bills\t%d\n", _5k_bills);
-  printf("2000 bills\t%d\n", _2k_bills);
-  printf("1000 bills\t%d\n", _1k_bills);
-  printf("500 bills\t%d\n", _500_bills);
-  printf("200 bills\t%d\n", _200_bills);
-  printf("100 bills\t%d\n", _100_bills);
-  printf("50 bills\t%d\n", _50_bills);
-  printf("10 bills\t%d\n", _10_bills);
-  printf("1 bills\t\t%d\n", rubles);
-}
-
-void load_calculator(void) {
-  float loan, interest_rate, monthly_payment;
-  loan = 20000.00;
-  interest_rate = 6.0;
-  monthly_payment = 386.66;
-  float monthly_interest_rate = (interest_rate / 100) / 12;
-  loan = loan + (loan * monthly_interest_rate) - monthly_payment;
-  printf("LN\t%.2f\n", loan);
-  loan = loan + (loan * monthly_interest_rate) - monthly_payment;
-  printf("LN\t%.2f\n", loan);
-  loan = loan + (loan * monthly_interest_rate) - monthly_payment;
-  printf("LN\t%.2f\n", loan);
-}
-
-int main() {
-  /* float volume = calculate_volume(); */
-  /* printf("%f", volume); */
-
-  /* float tax = tax_calculator(); */
-  /* printf("%.2f", tax); */
-
-  /* change_calculator(); */
-
-  load_calculator();
-}
diff --git a/c_modern_approach/Loops/theory.c b/c_modern_approach/Loops/theory.c
deleted file mode 100644
index 1d74dae..0000000
--- a/c_modern_approach/Loops/theory.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <stdio.h>
-void goto_check() {
-  int d, n;
-  for (d = 2; d < n; d++) {
-    if (n % d == 0) {
-      goto done;
-    }
-  }
-done:
-  if (d < n)
-    printf("%d is divisable by %d\n", d, n);
-  else
-    printf("%d is prime", d);
-}
-int main() { goto_check(); }
diff --git a/c_modern_approach/Pointers/combining_operatnds.c b/c_modern_approach/Pointers/combining_operatnds.c
deleted file mode 100644
index afc2142..0000000
--- a/c_modern_approach/Pointers/combining_operatnds.c
+++ /dev/null
@@ -1,38 +0,0 @@
-#include <stdio.h>
-#define ARRAY_SIZE 10
-void print_array(int a[], int array_size) {
-  printf("[");
-  int *p;
-  for (p = a; p < a + array_size; p++) {
-    if (p == &a[array_size - 1]) {
-      printf("%d", *p);
-    } else {
-      printf("%d, ", *p);
-    }
-  }
-  printf("]\n");
-}
-
-int main() {
-  int a[ARRAY_SIZE] = {1, 2, 3, 4, 5, 6, 7, 80, 90, 100};
-  print_array(a, ARRAY_SIZE);
-  printf("*a:\t%d\n", *a);
-  int *ap1 = &a[1];
-  *ap1++ = 99;
-  printf("Executing *ap1++:\n");
-  print_array(a, ARRAY_SIZE);
-  printf("*ap1 after execution:\n");
-  printf("%d\n", *ap1);
-  int *ap2 = &a[2];
-  *(ap2)++ = 88;
-  printf("Executing *(ap2)++:\n");
-  print_array(a, ARRAY_SIZE);
-  printf("*ap2 after execution:\n");
-  printf("%d\n", *ap2);
-  int *ap3 = &a[3];
-  *++ap3 = 77;
-  printf("Executing *++ap3:\n");
-  print_array(a, ARRAY_SIZE);
-  printf("*ap3 after execution:\n");
-  printf("%d\n", *ap3);
-}
diff --git a/c_modern_approach/Pointers/exercises/e_4.c b/c_modern_approach/Pointers/exercises/e_4.c
deleted file mode 100644
index 93f55ac..0000000
--- a/c_modern_approach/Pointers/exercises/e_4.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include <stdio.h>
-
-/**
- * @brief Variable swapping exercide
- */
-void swap(int *p, int *q) {
-  printf("*p: %d; p = %p\n", *p, p);
-  printf("*q: %d; q = %p\n", *q, q);
-  int x = *p;
-  int y = *q;
-  *p = y;
-  *q = x;
-}
-
-int main() {
-  int a, b;
-  a = 4;
-  b = 5;
-  printf("a = %d, b = %d\n", a, b);
-  swap(&a, &b);
-  printf("a = %d, b = %d", a, b);
-}
diff --git a/c_modern_approach/Pointers/exercises/e_5.c b/c_modern_approach/Pointers/exercises/e_5.c
deleted file mode 100644
index fe451e3..0000000
--- a/c_modern_approach/Pointers/exercises/e_5.c
+++ /dev/null
@@ -1,35 +0,0 @@
-#include <stdio.h>
-
-/* Splitting seconds into hh:mm:ss */
-
-void split_time(long total_sec, int *hr, int *min, int *sec) {
-  int f_h, f_m, f_s;
-  f_h = total_sec / 3600;
-  printf("hours: %d\n", f_h);
-  total_sec = total_sec - f_h * 3600;
-  f_m = total_sec / 60;
-  printf("minutes: %d\n", f_m);
-  total_sec = total_sec - f_m * 60;
-  printf("seconds: %ld\n", total_sec);
-  *hr = f_h;
-  *min = f_m;
-  *sec = total_sec;
-}
-
-void split_time_otimized(long total_sec, int *hr, int *min, int *sec) {
-  *hr = (int)(total_sec / 3600);
-  *min = (int)((total_sec % 3600) / 60);
-  *sec = (int)(total_sec % 60);
-}
-
-int main() {
-  long total_sec = 5123;
-  int hours, minutes, seconds;
-  hours = 0;
-  minutes = 0;
-  seconds = 0;
-  printf("BEFORE: %d:%d:%d\n", hours, minutes, seconds);
-  /* split_time(total_sec, &hours, &minutes, &seconds); */
-  split_time_otimized(total_sec, &hours, &minutes, &seconds);
-  printf("AFTER: %d:%d:%d\n", hours, minutes, seconds);
-}
diff --git a/c_modern_approach/Pointers/exercises/e_6.c b/c_modern_approach/Pointers/exercises/e_6.c
deleted file mode 100644
index e35d795..0000000
--- a/c_modern_approach/Pointers/exercises/e_6.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Finding two largest values in array */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
-#define MAX_RANDOM_VALUE 1000
-#define ARRAY_SIZE 10
-
-void find_two_largest(int a[], int n, int *largest, int *second_largest) {
-  for (int i = 0; i < n; i++) {
-    if (a[i] > *largest) {
-      *second_largest = *largest;
-      *largest = a[i];
-    } else if (a[i] < *largest && a[i] > *second_largest) {
-      *second_largest = a[i];
-    }
-  }
-}
-
-int main() {
-  int random_numbers_array[ARRAY_SIZE];
-  int largest = 0;
-  int second_largest = 0;
-  // Generate random numbers
-  srand(time(NULL));
-  for (int i = 0; i < ARRAY_SIZE; i++) {
-    random_numbers_array[i] = rand() % MAX_RANDOM_VALUE + 1;
-  }
-  // Print array
-  printf("[");
-  for (int i = 0; i < ARRAY_SIZE; i++) {
-    if (i == ARRAY_SIZE - 1) {
-      printf("%d", random_numbers_array[i]);
-    } else {
-      printf("%d,", random_numbers_array[i]);
-    }
-  }
-  printf("]\n");
-  // Exercise
-  find_two_largest(random_numbers_array, ARRAY_SIZE, &largest, &second_largest);
-  printf("Largest: %d\nSecond largest: %d\n", largest, second_largest);
-}
diff --git a/c_modern_approach/Pointers/exercises/e_8.c b/c_modern_approach/Pointers/exercises/e_8.c
deleted file mode 100644
index 73fb51b..0000000
--- a/c_modern_approach/Pointers/exercises/e_8.c
+++ /dev/null
@@ -1,27 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#define MAX_RANDOM_VALUE 1000
-#define ARRAY_SIZE 10
-
-int *find_largest(int a[], int n) {
-  int highest_number_index = 0;
-  for (int i = 0; i < ARRAY_SIZE; i++) {
-    if (a[i] > highest_number_index) {
-      highest_number_index = i;
-    }
-  }
-  return &a[highest_number_index];
-}
-
-int main() {
-  int random_numbers_array[ARRAY_SIZE];
-  int *highest_index;
-  srand(time(NULL));
-  for (int i = 0; i < ARRAY_SIZE; i++) {
-    random_numbers_array[i] = rand() % MAX_RANDOM_VALUE + 1;
-  }
-  highest_index = find_largest(random_numbers_array, ARRAY_SIZE);
-  printf("HI: %p\n", highest_index);
-  printf("VALUE: %d", *highest_index);
-}
diff --git a/c_modern_approach/Pointers/more.c b/c_modern_approach/Pointers/more.c
deleted file mode 100644
index e6b4738..0000000
--- a/c_modern_approach/Pointers/more.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <stdio.h>
-
-int main()
-{
-  int x = 10;
-  int * pX = &x;
-  printf("int value: %d\n", x);
-  printf("int address: %p\n", pX);
-  *pX = 15;
-  printf("int value after modifing pointer: %d\n", x);
-  printf("int address: %p\n", pX);
-  x = 20;
-  printf("int value: %d\n", x);
-  printf("int value from pointer: %d\n", *pX);
-  printf("int address: %p\n", pX);
-
-  char *p = "Hello";
-  printf("Char value: %s\n", p);
-  printf("Char address: %p", &p);
-  char p_value = *p;
-  printf("Char p_value: %c\n", p_value);
-  return 0;
-} 
diff --git a/c_modern_approach/Pointers/pointers_arithmetics.c b/c_modern_approach/Pointers/pointers_arithmetics.c
deleted file mode 100644
index 14adf79..0000000
--- a/c_modern_approach/Pointers/pointers_arithmetics.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <stdio.h>
-int main() {
-  char *p = "Hello";
-  printf("%p\n", p);
-  printf("%c", *p);
-  p++;
-  printf("\n\n%p\n", p);
-  printf("%c", *p);
-  char *pp = "World";
-  char ppa[] = "Ryan Gosling";
-  printf("\n%s\n", ppa);
-  puts(ppa);
-  puts(ppa);
-}
diff --git a/c_modern_approach/Pointers/pointers_operands_usage.c b/c_modern_approach/Pointers/pointers_operands_usage.c
deleted file mode 100644
index f4e7601..0000000
--- a/c_modern_approach/Pointers/pointers_operands_usage.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <stdio.h>
-int main() {
-  int a, *ap;
-  a = 123;
-  ap = &a;
-  int b = 10;
-  printf("a:\t%d\n", a);
-  printf("&a:\t%p\n", &a);
-  printf("ap:\t%p\n", ap);
-  printf("*ap:\t%d\n", *ap);
-  printf("&ap:\t%p\n", &ap);
-  printf("*&ap:\t%p\n", *&ap);
-  printf("**&ap:\t%d\n", **&ap);
-  printf("------\n");
-  printf("b:\t%d\n", b);
-  printf("&b:\t%p\n", &b);
-  printf("*&b:\t%d\n", *&b);
-}
diff --git a/c_modern_approach/Pointers/reverse.c b/c_modern_approach/Pointers/reverse.c
deleted file mode 100644
index b3d97ac..0000000
--- a/c_modern_approach/Pointers/reverse.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <stdio.h>
-#define N 10
-
-int main() {
-  int a[N], *p;
-  printf("Enter %d numbers: ", N);
-  for (p = a; p < a + N; p++) {
-    scanf("%d", p);
-  }
-  printf("In reverse order:");
-  for (p = a + N - 1; p >= a; p--) {
-    printf(" %d", *p);
-  }
-  printf("\n");
-  return 0;
-}
diff --git a/c_modern_approach/Pointers/theory.c b/c_modern_approach/Pointers/theory.c
deleted file mode 100644
index a730bb0..0000000
--- a/c_modern_approach/Pointers/theory.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include <stdio.h>
-void decompose(double, long *, double *);
-
-int main() {
-  long mp;
-  double rm;
-  double x = 3.141234;
-  printf("%ld, %f\n", mp, rm);
-  decompose(x, &mp, &rm);
-  printf("%ld, %f\n", mp, rm);
-}
-
-void decompose(double x, long *int_part, double *frac_part) {
-  *int_part = (long)x;
-  *frac_part = x - *int_part;
-}
diff --git a/c_modern_approach/Preprocessor/DESCRIPTION.md b/c_modern_approach/Preprocessor/DESCRIPTION.md
deleted file mode 100644
index 85d5fda..0000000
--- a/c_modern_approach/Preprocessor/DESCRIPTION.md
+++ /dev/null
@@ -1,66 +0,0 @@
-# ellipsis operator
-Ellipsis оператором в макросах называется: `...`
-Что он делает (пример в `ellipsis.c`):
-```c
-#include <stdio.h>
-#define TEST(condition, ...)                                                   \
-  ((condition) ? printf("Passed test: %s\n", #condition) : printf(__VA_ARGS__))
-
-int main() {
-  int voltage = 30;
-  int max_voltage = 20;
-  TEST(voltage <= max_voltage, "Voltage %d exceeds %d\n", voltage, max_voltage);
-  max_voltage = 40;
-  TEST(voltage <= max_voltage, "Voltage %d exceeds %d\n", voltage, max_voltage);
-}
-```
-Тут у нас происходит следующее:
-1. `...` объединяет в себе параметры, которые идут после обязательных. В нашем случае получается что 
-туда попадают аргументы, которые идут плсле `condition`.  
-2. `__VA_ARGS__` - идентификатор, который может появляеться только в случае использования `...` и представляет 
-из себя аргументы, которые относятся к `...`
-3. Дальше внутри программы препроцессор раскроет конструкцию:
-```c
-TEST(voltage <= max_voltage, "Voltage %d exceeds %d\n", voltage, max_voltage);
-```
-в что-то подобное:
-```c
-((voltage <= max_voltage)?
-printf("Passed test: %s\n", "voltage <= max_voltage"):
-printf("Voltage %d exceeds %d\n", voltage, max_voltage));
-```
-Где последняя строка это как раз то, что представляет из себя `printf(__VA_ARGS__)`
-# static
-Зачем нужно ключевое слово `static`. Есть 3 варианта:
-1. Статичные глобальные переменные
-file1.c
-```c
-static int counter = 0;
-```
-Данная цель - сделать эту переменнюу приватную для файла `file1.c`, т.е. в других файлах данная 
-переменная доступна не будет
-2. Статичные локальные переменные
-```c
-void count_calls()
-{
-    static int count = 0;
-    count++;
-    printf("Called %d times\n", count);
-}
-```
-Тут переменная `count` будет доступна между вызовами функции, т.е. каждый вызов функции будет происходить 
-добавление 1 к `count`
-```
-Called 1 times
-Called 2 times
-Called 3 times
-```
-3. Статичные функции
-```c
-static void helper()
-{
-    ...
-}
-```
-Тут делает функцию доступной только в файле, где объявлен
-# __func__
diff --git a/c_modern_approach/Preprocessor/celcius.c b/c_modern_approach/Preprocessor/celcius.c
deleted file mode 100644
index 31b8532..0000000
--- a/c_modern_approach/Preprocessor/celcius.c
+++ /dev/null
@@ -1,20 +0,0 @@
-#include "stdio.h"
-#include <stdio.h>
-
-#define FREEZING_PT 32.0f
-#define BEGIN {
-#define END }
-
-int main(void)
-BEGIN
-  float farenheit, celsius;
-
-  printf("Enter Fahrenheit temperature: ");
-  scanf("%f", &farenheit);
-
-  #define SCALE_FACTOR (5.0f / 9.0f)
-  celsius = (farenheit - FREEZING_PT) * SCALE_FACTOR;
-
-  printf("Celcius equivalent is: %.1f\n", celsius);
-  return 0;
-}
diff --git a/c_modern_approach/Preprocessor/defined.c b/c_modern_approach/Preprocessor/defined.c
deleted file mode 100644
index a98f045..0000000
--- a/c_modern_approach/Preprocessor/defined.c
+++ /dev/null
@@ -1,12 +0,0 @@
-#include <stdio.h>
-#define DEBUG 1
-
-int main()
-{
-  #if defined (DEBUG)
-  printf("DEBUG defined");
-  #else
-  printf("DEBUG not defined");
-  #endif
-  return 0;
-}
diff --git a/c_modern_approach/Preprocessor/double_hashtag_op.c b/c_modern_approach/Preprocessor/double_hashtag_op.c
deleted file mode 100644
index 9cba086..0000000
--- a/c_modern_approach/Preprocessor/double_hashtag_op.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <stdio.h>
-#define MK_ID(n) kakulya_##n
-
-#define GENERIC_MAX(type)                                                      \
-  type type##_max(type x, type y) { return x > y ? x : y; }
-
-GENERIC_MAX(float);
-/* The macro above will transorf into something like following:
- * float float_max(float x, float y) { return x > y ? x : y; }
- */
-
-int main(int argc, char *argv[]) {
-  int MK_ID(1); // This converts to `int kakulya_1`
-  printf("%d", kakulya_1);
-}
diff --git a/c_modern_approach/Preprocessor/ellipsis.c b/c_modern_approach/Preprocessor/ellipsis.c
deleted file mode 100644
index 6424f5d..0000000
--- a/c_modern_approach/Preprocessor/ellipsis.c
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <stdio.h>
-#define TEST(condition, ...)                                                   \
-  ((condition) ? printf("Passed test: %s\n", #condition) : printf(__VA_ARGS__))
-
-int main() {
-  int voltage = 30;
-  int max_voltage = 20;
-  TEST(voltage <= max_voltage, "Voltage %d exceeds %d\n", voltage, max_voltage);
-  max_voltage = 40;
-  TEST(voltage <= max_voltage, "Voltage %d exceeds %d\n", voltage, max_voltage);
-}
diff --git a/c_modern_approach/Preprocessor/error.c b/c_modern_approach/Preprocessor/error.c
deleted file mode 100644
index 2cc6be1..0000000
--- a/c_modern_approach/Preprocessor/error.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <stdio.h>
-// #define DEBUG 1
-
-int main() {
-#ifdef DEBUG
-  printf("All good, DEBUG is initialized");
-#else
-#error Debug is not initiated!
-#endif
-  return 0;
-}
-
-// #error identifier blocks code compilation if compiler reached it.
-// For example code above will not compile if DEBUG is not initiated.
-//
-// error.c: In function ‘main’:
-// error.c:8:2: error: #error Debug is not initiated!
-//     8 | #error Debug is not initiated!
-//       |  ^~~~~
-// make: *** [Makefile:14: main] Error 1
-
diff --git a/c_modern_approach/Preprocessor/ifdef_ifndef.c b/c_modern_approach/Preprocessor/ifdef_ifndef.c
deleted file mode 100644
index c27a89a..0000000
--- a/c_modern_approach/Preprocessor/ifdef_ifndef.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <stdio.h>
-// #define DEBUG 1
-// #ifdef identifier is similar to #if defined(identifier)
-//
-// #ifndef is just opposite of #ifdef
-int main() {
-#ifdef DEBUG
-  printf("DEBUG defined!");
-#else
-  printf("DEBUG NOT defined!");
-#endif
-  return 0;
-}
diff --git a/c_modern_approach/Preprocessor/ifendif.c b/c_modern_approach/Preprocessor/ifendif.c
deleted file mode 100644
index d1653fe..0000000
--- a/c_modern_approach/Preprocessor/ifendif.c
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <stdio.h>
-#define DEBUG 0
-
-int main() 
-{
-  printf("Hello ");
-  #if DEBUG
-  printf("debug ");
-  #endif
-  printf("World!");
-}
diff --git a/c_modern_approach/Preprocessor/macro_rules.c b/c_modern_approach/Preprocessor/macro_rules.c
deleted file mode 100644
index 600f2af..0000000
--- a/c_modern_approach/Preprocessor/macro_rules.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include <stdio.h>
-#define SIZE 256
-
-int main(int argc, char *argv[])
-{
-  int BUFFER_SIZE;
-  if (BUFFER_SIZE > SIZE)
-    puts("ERROR: SIZE exceeded");
-}
-
-/*
- * Код выше трансформируется в следующее:
- *
- *
- * int main(int argc, char *argv[])
- * {
- *   int BUFFER_SIZE;
- *   if (BUFFER_SIZE > 256)
- *     puts("ERROR: SIZE exceeded");
- * }
-*/
diff --git a/c_modern_approach/Preprocessor/main.c b/c_modern_approach/Preprocessor/main.c
deleted file mode 100644
index 3045f77..0000000
--- a/c_modern_approach/Preprocessor/main.c
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <stdio.h>
-#define PRINT_INT(n) printf(#n " = %d\n", n)
-
-int main() {
-  int i = 10;
-  PRINT_INT(i);
-}
-
-/* This program with the help of `#` operator will conver #n to string literal
- * of an argument, so the output of the program will be: i = 10
- */
diff --git a/c_modern_approach/Preprocessor/parametrized_macroses.c b/c_modern_approach/Preprocessor/parametrized_macroses.c
deleted file mode 100644
index 78f3bba..0000000
--- a/c_modern_approach/Preprocessor/parametrized_macroses.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include <stdio.h>
-#define MAX(x, y) ((x) > (y) ? (x) : (y))
-#define IS_EVEN(n) ((n) % 2 == 0)
-#define IS_EVEN_STR(n) ((n) % 2 == 0 ? "yes" : "no")
-
-int main(int argc, char *argv[]) {
-  int j, k;
-  j = 10;
-  k = 20;
-  printf("%d\n", MAX(j, k));
-  printf("%d is even: %d\n", j, IS_EVEN(j));
-  printf("%d is even? %s\n", j, IS_EVEN_STR(j));
-}
diff --git a/c_modern_approach/Preprocessor/playground.c b/c_modern_approach/Preprocessor/playground.c
deleted file mode 100644
index c669fff..0000000
--- a/c_modern_approach/Preprocessor/playground.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <stdio.h>
-#define PRINT_INT(n) printf(#n " AND " #n " = %d\n", n)
-
-int main(void) 
-{
-  unsigned long int k = 10;
-  printf("sizeof k: %lu", k);
-  int x = sizeof(int);
-  printf("sizeof k: %d", x);
-}
diff --git a/c_modern_approach/Preprocessor/pragma.c b/c_modern_approach/Preprocessor/pragma.c
deleted file mode 100644
index a0365ea..0000000
--- a/c_modern_approach/Preprocessor/pragma.c
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * #pragma tokens
- * Используется когда программы слишком большие и надо воспользоваться какими-то
- * особыми фичами компилятора.
- */
-
-#include <stdio.h>
-#pragma data(heap_size = > 1000, stack_size = > 2000)
-int main() 
-{
-  return 0;
-}
diff --git a/c_modern_approach/Preprocessor/predefined.c b/c_modern_approach/Preprocessor/predefined.c
deleted file mode 100644
index e98b1d4..0000000
--- a/c_modern_approach/Preprocessor/predefined.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <stdc-predef.h>
-#include <stdio.h>
-int main() {
-  // printf("%s", __STDC_IEC_559__);
-  // printf("%s", __STDC_IEC_559_COMPLEX__);
-  printf("%d\n", __STDC_VERSION__);
-  printf("%d", __STDC_HOSTED__);
-};
diff --git a/c_modern_approach/Preprocessor/undef.c b/c_modern_approach/Preprocessor/undef.c
deleted file mode 100644
index dc6cf66..0000000
--- a/c_modern_approach/Preprocessor/undef.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <stdio.h>
-#define SIZE 100
-int main(int argc, char *argv[]) {
-  int i;
-  i = 101;
-#undef SIZE
-  if (i > SIZE) {
-    printf("Yey!\n");
-  }
-}
diff --git a/c_modern_approach/ProgramOrganization/global_variables.c b/c_modern_approach/ProgramOrganization/global_variables.c
deleted file mode 100644
index 3fb3ca0..0000000
--- a/c_modern_approach/ProgramOrganization/global_variables.c
+++ /dev/null
@@ -1,61 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
-#define MAX_NUMBER 100
-
-/* External variable */
-int secret_number;
-
-// Prototypes
-void initialize_number_generator(void);
-void choose_new_secret_number(void);
-void read_guess(void);
-
-int main() {
-  char command = 'y';
-  printf("Guess the secret number between 1 and %d. \n\n", MAX_NUMBER);
-  initialize_number_generator();
-  do {
-    choose_new_secret_number();
-    printf("New number has been chosen.\n");
-    read_guess();
-    printf("Play again? (Y/N)\n");
-    while (getchar() != '\n')
-      ; // Discard any leftover input
-    scanf("%c", &command);
-    printf("\n");
-  } while (command == 'y' || command == 'Y');
-  exit(0);
-}
-
-/**
- * @brief Initializing random number generator based on current time
- * time(NULL) returns current time in `time_t` format
- */
-void initialize_number_generator(void) { srand((unsigned)time(NULL)); }
-
-/**
- * @brief Here we are using rand() function and getting the remaining value of
- * deletion by MAX_NUMBER + 1 to get random value between 0 and 100
- */
-void choose_new_secret_number(void) {
-  secret_number = rand() % MAX_NUMBER + 1;
-};
-
-void read_guess(void) {
-  int guess, num_guesses = 0;
-  for (;;) {
-    num_guesses++;
-    printf("Enter guess: ");
-    scanf("%d", &guess);
-    if (guess == secret_number) {
-      printf("You guessed the number after %d attempts!\n\n", num_guesses);
-      return;
-    } else if (guess < secret_number) {
-      printf("Missed! Secret value is lower than your value\n");
-    } else {
-      printf("Missed! Secret value is higher than your value\n");
-    }
-  }
-};
diff --git a/c_modern_approach/ProgramOrganization/static_local_variables.c b/c_modern_approach/ProgramOrganization/static_local_variables.c
deleted file mode 100644
index 302b75d..0000000
--- a/c_modern_approach/ProgramOrganization/static_local_variables.c
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-/**
- * @brief Function for demonstration static local variables
- */
-void test_static() {
-  static int static_var;
-  static_var += 1;
-  printf("%d\n", static_var);
-}
-
-int main() {
-  test_static();
-  test_static();
-  test_static();
-  test_static();
-  exit(0);
-}
diff --git a/c_modern_approach/README.md b/c_modern_approach/README.md
deleted file mode 100644
index f82190f..0000000
--- a/c_modern_approach/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# Точка останова
-Creating longer macros - 328
diff --git a/c_modern_approach/Strings/argc_argv.c b/c_modern_approach/Strings/argc_argv.c
deleted file mode 100644
index 6d6c975..0000000
--- a/c_modern_approach/Strings/argc_argv.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-int main(int argc, char *argv[]) {
-  // Reading CLI arguments
-  char **p;
-  // Iterating from 1 due to the app name at 0 index
-  for (p = &argv[1]; *p != NULL; p++) {
-    printf("%s\n", *p);
-  }
-  printf("-----\n");
-  // Another way
-  for (int n = 1; n < argc; n++) {
-    char *argument = argv[n];
-    // Option 1 (Idiom 1 of finding end of string)
-    /* printf("%c", *argument); */
-    /* while (*argument++) { */
-    /*   printf("%c", *argument); */
-    /* } */
-    // Option 2 (Idiom 2 of finding end of string)
-    while (*argument) {
-      printf("%c", *argument);
-      argument++;
-    }
-    printf("\n");
-  }
-}
diff --git a/c_modern_approach/Strings/char_arrays_vs_char_pointers.c b/c_modern_approach/Strings/char_arrays_vs_char_pointers.c
deleted file mode 100644
index 81d7295..0000000
--- a/c_modern_approach/Strings/char_arrays_vs_char_pointers.c
+++ /dev/null
@@ -1,6 +0,0 @@
-int main() {
-  // Char array declaraion
-  char adate[] = "June 14";
-  // Char pointer declaraion
-  char *pdate = "June 14";
-}
diff --git a/c_modern_approach/Strings/exercises/exc_04.c b/c_modern_approach/Strings/exercises/exc_04.c
deleted file mode 100644
index f49fb6c..0000000
--- a/c_modern_approach/Strings/exercises/exc_04.c
+++ /dev/null
@@ -1,48 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-
-#define MAX_REMIND 50
-#define MSG_LEN 60
-
-int read_line(char str[], int n);
-int main(void) {
-  char reminders[MAX_REMIND][MSG_LEN + 3];
-  char day_str[3], msg_str[MSG_LEN + 1];
-  int day, i, j, num_remind = 0;
-  for (;;) {
-    if (num_remind == MAX_REMIND) {
-      printf("-- No space left --\n");
-      break;
-    }
-    printf("Enter day and reminder: ");
-    scanf("%2d", &day);
-    if (day == 0)
-      break;
-    sprintf(day_str, "%2d", day);
-    read_line(msg_str, MSG_LEN);
-    for (i = 0; i < num_remind; i++)
-      if (strcmp(day_str, reminders[i]) < 0)
-        break;
-    for (j = num_remind; j > i; j--)
-      strcpy(reminders[j], reminders[j - 1]);
-    strcpy(reminders[i], day_str);
-    strcat(reminders[i], msg_str);
-    num_remind++;
-  }
-  printf("\nDay Reminder\n");
-  for (i = 0; i < num_remind; i++)
-    printf(" %s\n", reminders[i]);
-  return 0;
-}
-
-int read_line(char str[], int n) {
-  int ch, i = 0;
-
-  while ((ch = getchar()) != '\n') {
-    if (i < n) {
-      str[i++] = ch;
-    }
-  }
-  str[i] = '\0';
-  return i;
-}
diff --git a/c_modern_approach/Strings/exercises/exc_05A.c b/c_modern_approach/Strings/exercises/exc_05A.c
deleted file mode 100644
index ac97f15..0000000
--- a/c_modern_approach/Strings/exercises/exc_05A.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include <ctype.h>
-#include <stdio.h>
-#define MAX_REMIND 50
-#define MSG_LEN 60
-
-char *capitalize(char cap_string[]);
-
-int main() {
-  char string_to_capitalize[] = "some fuck1ng bullshit!";
-  char *cap;
-  cap = capitalize(string_to_capitalize);
-  printf("%s", cap);
-}
-
-char *capitalize(char cap_string[]) {
-  char *p;
-  char capitalized_string[MSG_LEN];
-  p = capitalized_string;
-  for (int i = 0; cap_string[i] != '\0'; i++) {
-    capitalized_string[i] = toupper(cap_string[i]);
-  }
-  return p;
-}
diff --git a/c_modern_approach/Strings/exercises/exc_05B.c b/c_modern_approach/Strings/exercises/exc_05B.c
deleted file mode 100644
index 6402da0..0000000
--- a/c_modern_approach/Strings/exercises/exc_05B.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <ctype.h>
-#include <stdio.h>
-#define MAX_REMIND 50
-#define MSG_LEN 60
-
-char *capitalize(char cap_string[]);
-
-int main() {
-  char string_to_capitalize[] = "some fuck1ng bullshit!";
-  char *cap;
-  cap = capitalize(string_to_capitalize);
-  printf("%s", cap);
-}
-
-char *capitalize(char cap_string[]) {
-  char *p;
-  char capitalized_string[MSG_LEN];
-  int i = 0;
-  p = capitalized_string;
-  while (*cap_string) {
-    capitalized_string[i] = toupper(*cap_string);
-    i++;
-    cap_string++;
-  }
-  return p;
-}
diff --git a/c_modern_approach/Strings/exercises/exc_06.c b/c_modern_approach/Strings/exercises/exc_06.c
deleted file mode 100644
index d8f49c5..0000000
--- a/c_modern_approach/Strings/exercises/exc_06.c
+++ /dev/null
@@ -1,36 +0,0 @@
-#include <stdio.h>
-#define MAX_LEN 60
-char *censor(char cens_string[]);
-
-int main() {
-  char string_to_censor[MAX_LEN] = "Hello my dear foolish foles!";
-  char *cens;
-  cens = censor(string_to_censor);
-  printf("INPUT:\t %s\n", string_to_censor);
-  printf("OUTPUT:\t %s\n", cens);
-}
-
-char *censor(char cens_string[]) {
-  char to_cens[] = "foo";
-  char cens_char = 'x';
-  char censored[MAX_LEN + 1], *c, *start;
-  c = censored;
-  start = c;
-  int i = 0;
-  // Starting iteration on string to censor
-  while (*cens_string) {
-    // If we find 'f' char - we need to check current 'f' char and next 2 for
-    // equality with to_cens string
-    if (*cens_string == to_cens[0] && *(cens_string + 1) == to_cens[1] &&
-        *(cens_string + 2) == to_cens[2]) {
-      *c = cens_char;
-      *(c + 1) = cens_char;
-      *(c + 2) = cens_char;
-      cens_string += 3;
-      c += 3;
-    } else {
-      *c++ = *cens_string++;
-    }
-  }
-  return start;
-}
diff --git a/c_modern_approach/Strings/playground.c b/c_modern_approach/Strings/playground.c
deleted file mode 100644
index dd11763..0000000
--- a/c_modern_approach/Strings/playground.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include <stdio.h>
-int main(void) {
-  // String literal assigment
-  char *p;
-  /*Following statement does not copy string. It makes pointer p to point to first charachter of list of chars*/
-  p = "abc";
-  printf("%s\n\n", p);
-
-  // ---
-
-  // Subscripting 
-  char ch;
-  ch = p[1];
-  printf("%c\n", ch);
-}
diff --git a/c_modern_approach/Strings/printing_strings.c b/c_modern_approach/Strings/printing_strings.c
deleted file mode 100644
index c8567a4..0000000
--- a/c_modern_approach/Strings/printing_strings.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <stdio.h>
-int main() {
-  char *p = "Hello world!";
-  printf("%c", *p);
-}
diff --git a/c_modern_approach/Strings/string_reading.c b/c_modern_approach/Strings/string_reading.c
deleted file mode 100644
index 14adf79..0000000
--- a/c_modern_approach/Strings/string_reading.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <stdio.h>
-int main() {
-  char *p = "Hello";
-  printf("%p\n", p);
-  printf("%c", *p);
-  p++;
-  printf("\n\n%p\n", p);
-  printf("%c", *p);
-  char *pp = "World";
-  char ppa[] = "Ryan Gosling";
-  printf("\n%s\n", ppa);
-  puts(ppa);
-  puts(ppa);
-}
diff --git a/c_modern_approach/Strings/theory_addresses.c b/c_modern_approach/Strings/theory_addresses.c
deleted file mode 100644
index 39dec5d..0000000
--- a/c_modern_approach/Strings/theory_addresses.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <stdio.h>
-int main() {
-  char ch0, ch1, ch2, ch3;
-  ch0 = "abc"[0];
-  ch1 = "abc"[1];
-  ch2 = "abc"[2];
-  ch3 = "abc"[3];
-  printf("%c\n", ch0);
-  printf("%p", &ch0);
-  printf("\n\n");
-  printf("%c\n", ch1);
-  printf("%p", &ch1);
-  printf("\n\n");
-  printf("%c\n", ch2);
-  printf("%p", &ch2);
-  printf("\n\n");
-  printf("%c\n", ch3);
-  printf("%p", &ch3);
-}
diff --git a/exercices/functions/ex_4_1.c b/exercices/functions/ex_4_1.c
new file mode 100644
index 0000000..bb3a7a7
--- /dev/null
+++ b/exercices/functions/ex_4_1.c
@@ -0,0 +1,20 @@
+/*
+ * Exercise 4-1. Write the function strindex(s,t) which returns the position of
+ * the rightmost occurrence of t in s, or -1 if there is none
+ */
+
+#include <stdio.h>
+#include <string.h>
+int strindex(char s[], char t) {
+  for (int i = 0; i < strlen(s); i++) {
+    if (s[i] == t) {
+      return i;
+    }
+  }
+  return -1;
+}
+
+int main() {
+  int index = strindex("Hello world", 'w');
+  printf("Index: %d\n", index);
+}
diff --git a/labs/part1/celcius.c b/labs/part1/celcius.c
deleted file mode 100644
index de416f6..0000000
--- a/labs/part1/celcius.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <stdio.h>
-#define LOWER 0
-#define UPPER 300
-#define STEP 20
-
-int main() {
-  float fahr, celsius;
-  int lower, upper, step;
-
-  fahr = LOWER;
-  printf("Temperature conversion\n");
-  while (fahr <= UPPER) {
-    celsius = (5.0 / 9.0) * (fahr - 32.0);
-    printf("%3.0f\t%6.1f\n", fahr, celsius);
-    fahr = fahr + STEP;
-  }
-
-  printf("\nNow Celcius -> Fahr table\n");
-  lower = 0;
-  upper = 100;
-  step = 5;
-  fahr = 0.0;
-  celsius = lower;
-  while (celsius <= upper) {
-    fahr = (celsius * (9.0 / 5.0)) + 32;
-    printf("%3.0f\t%6.1f\n", celsius, fahr);
-    celsius = celsius + step;
-  }
-
-  return 0;
-}
diff --git a/labs/part1/hello.c b/labs/part1/hello.c
deleted file mode 100644
index 2fed10f..0000000
--- a/labs/part1/hello.c
+++ /dev/null
@@ -1,12 +0,0 @@
-#include <stdio.h>
-
-int main() {
-  int div_result;
-  printf("hello world\n");
-  printf("Test\tTab\n");
-  printf("Test backspace\b\b\b");
-  printf("Test\tc_word\a\n");
-  div_result = 6/5;
-  printf("Result: %d", div_result);
-  return 0;
-}
diff --git a/ncurses/DESCRIPTION.md b/ncurses/DESCRIPTION.md
deleted file mode 100644
index c1f1e55..0000000
--- a/ncurses/DESCRIPTION.md
+++ /dev/null
@@ -1,40 +0,0 @@
-# Links
-- [Tutorial for ncurses](https://tldp.org/HOWTO/NCURSES-Programming-HOWTO/helloworld.html)
-# Построчная буферизация
-Построчная буферизация означает, что символы не отправляются программе сразу, а сначала накапливаются в буфере пока пользователь не нажмет `Enter`.  
-Визуальное описание выглядит примерно так:  
-*Режим cooked*
-```
-Пользователь печатает: h e l l o [backspace] [backspace] i
-Что видит пользователь: helli
-Буфер терминала: helli
-                                    ↓ [Enter]
-Программа получает: "helli\n" (только после Enter!)
-```
-*Режим cbreak*
-```
-Пользователь печатает: h
-Программа получает: 'h' ← сразу!
-
-Пользователь печатает: e
-Программа получает: 'e' ← сразу!
-
-Пользователь печатает: l
-Программа получает: 'l' ← сразу!
-```
-# Режимы инициализации
-## raw() vs cbreak()
-У терминалов есть 3 режима работы:
-1. Cooked mode (по умолчанию)
-Это когда - ввод буферизиуется построчно, пользователь должен нажать Enter, работают сигналы по типу Ctrl-C, Ctrl-Z, работает backspace для редактирования строки.
-2. Cbreak mode
-Это когда:  
-- Ввод передается немедленно, без ожидания Enter;  
-- Сигналы работают;  
-- Нет буферизации по строкам;  
-- Каждый символ доступен сразу после нажатия.  
-3. Raw mode  
-Это когда:  
-- Ввод передается немедленно;  
-- Полный контроль над всеми клавишами;  
-- Не работают сигналы
diff --git a/ncurses/README.md b/ncurses/README.md
deleted file mode 100644
index e69de29..0000000
diff --git a/ncurses/main.c b/ncurses/main.c
deleted file mode 100644
index c3420d6..0000000
--- a/ncurses/main.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "modes.h"
-#include <ncurses.h>
-
-int main() {
-  /* Инициализация curses режима. Необходимо перед использованием приложения с
-   * этой библиотекой. Она инициализирует curses систему и выделяет память для
-   * текущего окна (stdscr в этой библиотеке)*/
-  initscr();
-
-  /*Функция вызова печати символов в stdscr на текущей x, y позиции. По
-   * умолчанию координаты = 0,0 => печать произойдет в левом верхнем углу*/
-  // printw("Hello world!");
-
-  /*Для того, чтобы символы выше напечатались на экране (на данный момент
-   * получена инструкция печати, но выполнение еще не инициализировано). Нужно
-   * вызывать функцию refresh, которая "Обновляет некоторые флаги и структуры
-   * данных и пишет данные в буфер, который относится к stdscr". Собственно эта
-   * функции дампит буфер на экран*/
-  // refresh();
-
-  // Ждем инпута от пользователя
-  // getch();
-
-  ncurses_modes();
-  // Завершаем curses режим
-  endwin();
-
-  return 0;
-}
diff --git a/ncurses/modes.c b/ncurses/modes.c
deleted file mode 100644
index 3efdfdc..0000000
--- a/ncurses/modes.c
+++ /dev/null
@@ -1,21 +0,0 @@
-#include "modes.h"
-#include <ncurses.h>
-void ncurses_modes() {
-  int ch;
-  raw();
-  keypad(stdscr, TRUE);
-  noecho();
-
-  printw("Type char to see it in bold\n");
-  ch = getch();
-  if (ch == KEY_F(1))
-    printw("F1 key pressed");
-  else {
-    printw("The pressed key is ");
-    attron(A_BOLD);
-    printw("%c", ch);
-    attroff(A_BOLD);
-  }
-  refresh();
-  getch();
-}
diff --git a/ncurses/modes.h b/ncurses/modes.h
deleted file mode 100644
index 022b6f2..0000000
--- a/ncurses/modes.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef MODES_H
-#define MODES_H
-
-void ncurses_modes();
-#endif