제출 #523064

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
523064		Farhan_HY	Football (info1cup20_football)	C++14	100 / 100	86 ms	2996 KiB

football

#include <bits/stdc++.h>
#define int long long
#define float double
#define pb push_back
#define F first
#define S second
#define T int t; cin >> t; while(t--)
#define IOS ios::sync_with_stdio(); cin.tie(0); cout.tie(0);

using namespace std;

const int inf = 8e18;
const int N = 1e6 + 6;
const int M = 1e3 + 3;
const int mod = 1e9 + 7;
const float pi = atan(1) * 4;
int a[N];
int n, m;
vector<int> v;

main()
{
    T
    {
        cin >> n >> m;
        bool ok = 0;
        for(int i = 0; i < n; i++)
            cin >> a[i];
        int x = log2(m) + 1;
        for(int i = 0; i < x; i++)
        {
            int sum = 0;
            for(int j = 0; j < n; j++)
                sum += a[j] % (1ll << (i + 1)) >= (1ll << i);
            ok |= sum % 2;
        }
        v.pb(ok);
    }
    for(auto x: v)
        cout << x;
}

컴파일 시 표준 에러 (stderr) 메시지

football.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   21 | 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