#include <string.h>  // strlen(), memcmp()

int strend(const char *s, const char *t)
{
    size_t ls = strlen(s); // find length of s
    size_t lt = strlen(t); // find length of t
    if (ls >= lt)  // check if t can fit in s
    {
        // point s to where t should start and compare the strings from there
        return (0 == memcmp(t, s + (ls - lt), lt));
    }
    return 0; // t was longer than s
}