UVA 1482 - Playing With Stones(SG打表规律)

UVA 1482 - Playing With Stones

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

int t, n;
long long num;

long long SG(long long x) {
return x % 2 == 0 ? x : SG(x / 2);
}

int main() {
scanf("%d", &t);
while (t--) {
scanf("%d", &n);
long long ans = 0;
for (int i = 0; i < n; i++) {
scanf("%lld", &num);
ans ^= SG(num);
}
printf("%s\n", ans == 0 ? "NO" : "YES");
}
return 0;
}