reverse elents in 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 the string

#!/bin/bash
input="$1"
reverse=""
len=${#input}
for (( i=$len-1; i>=0; i-- ))
do 
	reverse="$reverse${input:$i:1}"
done
echo "$reverse"