Submission #639124

#	Time	Username	Problem	Language	Result	Execution time	Memory
639124		Dec0Dedd	Football (info1cup20_football)	C++14	100 / 100	202 ms	1412 KiB

football

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int N = 1e5+1;

ll a[N], n, k;

bool check() {
   int s=0;
   for (int i=1; i<=n; ++i) s+=a[i]%2;
   s%=2;
   return s;
}

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

   bool ans=check();
   while (k > 1) {
      for (int i=1; i<=n; ++i) a[i]/=2;
      k/=2;
      if (check()) {
         ans=true;
         break;
      }
   }

   if (ans) cout<<"1";
   else cout<<"0";
}

int main() {
   int t; cin>>t;
   while (t--) solve();
}

• 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