Problem 3. Perfect Numbers

#include <stdio.h>
#include <string.h>

const char *wtfPerfectNum[] = {"6", "28", "496", "8128", "33550336", "8589869056", "13743869132"};

int isPerfect(char* num)
{
	int i = 7;
	while (i--) if (!strcmp(num, wtfPerfectNum[i])) return 1;
	return 0;
}

int main(int argc, char *argv[]) {
    int n;
    char p[17];
    scanf("%d", &n);
    while (n--) {
    	scanf("%s", p);
    	puts(isPerfect(p) ? "perfect" : "nonperfect");
    }
	return 0;
}