Submission #845892

#	Time	Username	Problem	Language	Result	Execution time	Memory
845892		samekkk	Football (info1cup20_football)	C++14	100 / 100	27 ms	2140 KiB

football

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a,b) for (int a = 0; a < (b); ++a)
#define pb push_back
#define all(t) t.begin(), t.end()

const int max_N = 1e5+5;
int t = 0, n = 0, k = 0;
ll s = 0;
int A[max_N];

int main()
{
    // Jak suma nieparzysta to odrazu win, jak nie to dla jakies dowolnej potegi dwojki suma A[i]/2^x musi byc nieparzysta, wtedy sie da
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> t;
    while(t--)
    {
        cin >> n >> k;
        rep(i,n) cin >> A[i];
        s = 0;
        rep(i,n) s += A[i];
        if (s % 2 == 1)
        {
            cout << '1';
            continue;
        }
        int ilo = 1;
        bool czy_OK = false;
        while(ilo <= k)
        {
            ll sum = 0;
            rep(i,n) sum += A[i] / ilo;
            if (sum % 2 == 1)
            {
                czy_OK = true;
                break;
            }
            ilo *= 2;
        }
        if (czy_OK == true) cout << '1';
        else cout << '0';
    }
    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