3. Program to Reverse a string without using built in function.

#include <stdio.h>

void main()

{

char str[10], Rev[10];

int i, j=0,count=0;

printf("\n Please Enter any String :");

scanf("%s",str);

while (str[count] != '\0')

count++;

for (i = count-1; i >= 0; i--)

{

Rev[j++] = str[i];

}

Rev[j] = '\0';

printf("\n String after Reversing = %s", Rev);

}