Submission #369182

#	Time	Username	Problem	Language	Result	Execution time	Memory
369182		doowey	Football (info1cup20_football)	C++17	100 / 100	57 ms	2156 KiB

football

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

#define fi first
#define se second
#define mp make_pair
#define fastIO ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

int main(){
    fastIO;
    int tc;
    cin >> tc;
    for(int ti = 1; ti <= tc; ti ++ ){
        int n;
        ll k;
        cin >> n >> k;
        vector<ll> x(n);
        for(int i = 0 ;i < n; i ++ ){
            cin >> x[i];
        }
        ll cc;
        bool who = false;
        ll cum;
        for(int lg = 0; lg < 32; lg ++ ){
            cc = (1 << lg);
            if(cc <= k){
                cum = 0;
                for(int i = 0 ; i < n; i ++) {
                    cum += x[i] / cc;
                }
                if(cum % 2 == 1){
                    who = true;
                    break;
                }
            }
        }
        if(who){
            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