Palindrome of a string

The below program shows a string is palindrome or not. This is done using string functions. string copy and string reverse functions are used to check a word palindrome or not. mom is a palindrome. car is not a palindrome. Here the entered string is copied into another variable and reverse of this string is compared with original string, to get a palindrome.

#include<stdio.h>
#include<conio.h>
#include<string.h>
        main()
        {
            char a[100],b[100];
            printf("/n Enter the string to check if it is a palindrome");
            gets(a);
            strcpy(b,a);
            strrev(b);
            if(strcmp(a,b)==0)
                printf("/n Entered string is a palindrome");
            else
                printf("/n Entered string is not a palindrome");
            return 0;

        }