Submission #660536

#	Time	Username	Problem	Language	Result	Execution time	Memory
660536		LucaLucaM	Football (info1cup20_football)	C++17	100 / 100	35 ms	1364 KiB

football

#include <bits/stdc++.h>

using namespace std;

int a[100001];

int n, k;

bool ok ()
{
    int sum = 0;
    for (int i=1; i<=n; i++)
        sum += a[i] % 2, sum &= 1;
    return sum;
}

void solve()
{
    cin >> n >> k;

    for (int i=1; i<=n; i++)
        cin >> a[i];

    if (ok())
    {
        cout << 1;
        return;
    }

    while (k > 1)
    {
        for (int i=1; i<=n; i++)
            a[i] /= 2;
        k /= 2;
        
        if (ok())
        {
            cout << 1;
            return;
        }
    }

    cout << 0;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int t;
    cin >> t;

    while (t--)
        {
            solve();
        }

    return 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