Submission #886230

#	Time	Username	Problem	Language	Result	Execution time	Memory
886230		LinkedArray	Football (info1cup20_football)	C++17	100 / 100	21 ms	2192 KiB

football

#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;
}

Compilation message (stderr)

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");
      |                  ~~~~~^~~

• Subtask 1: 26 / 26
• Subtask 2: 8 / 8
• Subtask 3: 11 / 11
• Subtask 4: 8 / 8
• Subtask 5: 16 / 16
• Subtask 6: 16 / 16
• Subtask 7: 7 / 7
• Subtask 8: 8 / 8