Submission #1100711

#	Time	Username	Problem	Language	Result	Execution time	Memory
1100711		Kirill22	Football (info1cup20_football)	C++17	100 / 100	33 ms	2404 KiB

football

#include "bits/stdc++.h"

using namespace std;

void solve() {
    int n, k;
    cin >> n >> k;
    map<int, int> cnt;
    for (int i = 0; i < n; i++) {
        int x;
        cin >> x;
        cnt[x]++;
    }
    vector<int> a;
    for (auto& [x, y] : cnt) {
        if (y % 2) {
            a.push_back(x);
        }
    }
    for (int x = 1; x <= k; x *= 2) {
        long long sum = 0;
        for (auto& y : a) {
            sum += y / x;
        }
        if (sum % 2) {
            cout << 1;
            return;
        }
    }
    cout << 0;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    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