Submission #1296770

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296770		szaranczuk	Football (info1cup20_football)	C++20	50 / 100	19 ms	1484 KiB

football

#include <bits/stdc++.h>

using namespace std;

int n, k;

const int N = 200'000;

int in[N];

void solve()
{
    cin >> n >> k;
    int win = 0;
    for (int i = 0; i < n; i++) cin >> in[i];
    for (int lg = 0; (1 << lg) <= k; lg++)
    {
        int sum = 0;
        for (int i = 0; i < n; i++)
        {
            if (__builtin_ctz(in[i]) <= lg) sum ^= 1;
        }
        if (sum)
        {
            win = 1;
            break;
        }
    }
    if (win) cout << "1";
    else cout << "0";
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int tc;
    cin >> tc;
    while (tc--)
    {
        solve();
    }
    cout << '\n';
}

• Subtask 1: 26 / 26
• Subtask 2: 0 / 8
• Subtask 3: 0 / 11
• Subtask 4: 8 / 8
• Subtask 5: 16 / 16
• Subtask 6: 0 / 16
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8