Submission #1116506

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116506		epicci23	Football (info1cup20_football)	C++17	100 / 100	23 ms	1456 KiB

football

#include "bits/stdc++.h"
#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;

void _(){
  int n,k;
  cin >> n >> k;
  vector<int> v(n);
  for(int i=0;i<n;i++) cin >> v[i];
  if(n==1){
    for(int j=0;j<32;j++){
      if(v[0]>>j&1){
      	if((1LL<<j)<=k) cout << 1;
      	else cout << 0;
      	break;
      }
    }
  }
  else if(k==1){
    if(accumulate(all(v),0LL)&1) cout << 1;
    else cout << 0;
  }
  else if(k==2){
  	if(accumulate(all(v),0LL)&1) cout << 1;
  	else{
  	  int hm = 0;
  	  for(int x:v) hm+=x/2;
  	  if(hm&1) cout << 1;
  	  else cout << 0;
  	}
  }
  else{
  	bool ok=0;
  	for(int p=1;p<=k;p*=2){
      int hm = 0;
      for(int i=0;i<n;i++) hm+=v[i]/p;
      if(hm&1){
      	cout << 1;
      	ok=1;
      	break;
      }
  	}
  	if(!ok) cout << 0;
  }
}

int32_t main(){
  cin.tie(0); ios::sync_with_stdio(0);
  int tc=1;cin >> tc;
  while(tc--) _();
  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