reversing text

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int c,i,j,n;
    char s[81];
    gets(s);
    n = strlen(s);
    for(i=0, j=n-1;i<j;i++, j--)
    {
        c=s[i]; s[i]=s[j]; s[j]=c;
    }

   printf("n = %d\n", n);
   printf("%s\n" , s);
    return 0;
}