제출 #886230

#제출 시각아이디문제언어결과실행 시간메모리
886230LinkedArrayFootball (info1cup20_football)C++17
100 / 100
21 ms2192 KiB
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); int t, n, k, i, cnt, num; cin >> t; while (t--) { cin >> n >> k; cnt = 0; for (i = 0; i < n; i++) { cin >> num; cnt ^= num; } // log2(k) int pow2 = (1 << static_cast<int>(log2(k) + 1)); cout << (cnt & pow2 - 1 ? "1" : "0"); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

football.cpp: In function 'int main()':
football.cpp:22:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   22 |   cout << (cnt & pow2 - 1 ? "1" : "0");
      |                  ~~~~~^~~
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