Submission #674468

#	Time	Username	Problem	Language	Result	Execution time	Memory
674468		QwertyPi	Football (info1cup20_football)	C++14	100 / 100	41 ms	2140 KiB

football

#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define fi first
#define se second
#define int long long
using namespace std;

int a[100001];

void solve(){
	int n, k; cin >> n >> k;
	for(int i = 0; i < n; i++) cin >> a[i];
	sort(a, a + n);
	for(int j = 1; j <= k; j *= 2){
		int tot = 0;
		for(int i = 0; i < n; i++){
			tot += a[i] / j % 2;
		}
		if(tot % 2 == 1){
			cout << 1;
			return;
		}
	}
	cout << 0;
}

int32_t main(){
	cin.tie(0); cout.tie(0)->sync_with_stdio(false);
	int t; cin >> t;
	while(t--) solve();
}

• 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