Add some code about strings

c_modern_approach/Strings/playground.c

@@ -0,0 +1,15 @@
+#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);
+}