How to reverse a given string code example

Example 1: code to reverse a string

#include <stdio.h>
#include <string.h>
int main()
{
   char s[100];

   printf("Enter a string to reverse\n");
   gets(s);

   strrev(s);

   printf("Reverse of the string: %s\n", s);

   return 0;
}

Example 2: reverse a string

let t = s.chars().rev().collect::<String>();