C++ Program TO Check For Palindrome String

/* A palindrome word is a word, whose appearance are the same in either forward or reverse direction. Examples: civic etc.In this program user will be prompted to enter the word & the program loop will test the condition of the string is Palindrome or not */

#include <iostream>

#include <stdio.h>  //For gets() & system() functions

using namespace std;

int main()

{

    char s[80];

    int i,j,flag=0,len;

    cout<<"Enter the string:";

    gets(s);

    len=strlen(strn);

    for(i=0,j=len-1;i<=(len/2);++i,--j)

    {

    if(s[i]==s[j])

    flag=1;

    }

    if(flag)

    cout<<"The given string is a Palindrome\n";

     else 

    cout<<"The given string is NOT a palindrome\n";

 system("pause");
return 0;

 }

Screenshot:

C++ Program TO Check For Palindrome String