Submission #328973

#	Time	Username	Problem	Language	Result	Execution time	Memory
328973		ThaiBaHung	Football (info1cup20_football)	C++14	100 / 100	42 ms	2156 KiB

football

#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 3;
int test;
int n, k;
int a[N];
long long sum = 0;

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

    cin >> test;

    while (test--)
    {
        cin >> n >> k;
        sum = 0;

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

        if (sum % 2)
        {
            cout << 1;
            continue;
        }

        if (k == 1)
        {
            cout << 0;
            continue;
        }

        long long cur = 0;
        int res = 0;

        for (int j = 1; (1 << j) <= k; j++)
        {
            for (int i = 1; i <= n; i++)
            {
                cur = cur + a[i] / (1 << j);
            }
            if (cur % 2)
            {
                res = 1;
                break;
            }
        }

        cout << res;
    }
}

• 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