Add solutions for section 2 projects

c_modern_approach/Fundamentials/README.md

@@ -11,3 +11,4 @@ After Preprocessing app goes to compiler where app is being translated into mach
 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

c_modern_approach/Fundamentials/projects/2/main.c

@@ -0,0 +1,108 @@
+#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();
+}