Submission #667161

#	Time	Username	Problem	Language	Result	Execution time	Memory
667161		divad	Football (info1cup20_football)	C++14	100 / 100	31 ms	2064 KiB

football

#include <iostream>
#include <algorithm>
#include <cstring>
#define int long long
#define MAX 1000002
using namespace std;
int t,n,k,a[MAX],nrp,tmp,s,c[MAX],lst,maxi;
bool gasit;
pair<int, int> st[MAX];

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

void solve(){
    cin >> n >> k;
    for(int i = 1; i <= n; i++){
        cin >> a[i];
    }
    if(check()){
        cout << "1";
        return ;
    }
    while(k > 1){
        for(int i = 1; i <= n; i++){
            a[i] /= 2;
        }
        k /= 2;
        if(check()){
            cout << "1";
            return ;
        }
    }
    cout << "0";
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> t;
    while(t--){
        solve();
    }
    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