Submission #1147361

#	Time	Username	Problem	Language	Result	Execution time	Memory
1147361		meddbek999	Football (info1cup20_football)	C++20	100 / 100	20 ms	584 KiB

football

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
#include <bits/stdc++.h>

#define ll long long
#define int long long
#define all(v) v.begin(), v.end()
#define nl '\n'
#define pb push_back
#define sz(s) (int)(s).size()
#define f first
#define s second
#define boost ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

using namespace std;
const ll N = 2e5+10, MX = 1e18+1, MOD = 1e9 + 7;
void solve(){
    ll n, k;
    cin >> n >> k;
    ll a[n + 1];
    for(int i = 1; i <= n; i++){
       cin >> a[i]; 
    }
    ll p = 1;
    while(p <= k){
        ll sum = 0;
        for(int i = 1; i <= n; i++){
            sum += a[i]/p;
        }
        if(sum % 2 == 1){
            cout << 1;
            return;
        }
        p*=2;
    }
    cout << 0;
}
main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    ll ql =1;
    cin >> ql;
	 while(ql--){
	    solve();
	}
}

Compilation message (stderr)

football.cpp:38:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   38 | main(){
      | ^~~~

• 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