Submission #1142314

#	Time	Username	Problem	Language	Result	Execution time	Memory
1142314		stefanneagu	Football (info1cup20_football)	C++17	100 / 100	22 ms	328 KiB

football

#include <bits/stdc++.h>
#define int long long

using namespace std;

const int nmax = 1e6 + 1, inf = 1e18;

void test() {
  int n, k;
  cin >> n >> k;
  vector<int> f(31, 0);
  for(int i = 1; i <= n; i++) {
    int a;
    cin >> a;
    for(int bit = 0; bit < 30; bit++) {
      f[bit] += ((a & (1 << bit)) != 0);
    }
  }
  for(int bit = 0; (1 << bit) <= k; bit++) {
    // cout << bit << ": " << f[bit] << '\n';
    if(f[bit] % 2 == 1) {
      cout << 1;
      return;
    }
  }
  cout << 0;
}

int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int t;
  cin >> t;
  while(t--) {
    test();
  }

  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