제출 #1027523

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1027523		vjudge1	Football (info1cup20_football)	C++17	100 / 100	49 ms	4852 KiB

football

#include <bits/stdc++.h>
using namespace std;
#define int long long

void f(){
	#ifndef ONLINE_JUDGE
	freopen("in.txt", "r", stdin);
	freopen("out.txt", "w", stdout);
	#endif
}

int k;
int solve(vector<int> a, int b){
	int n=a.size(), s=0;
	if(b>k) return 0;
	for(auto i: a) s+=i;

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

		return solve(a, b*2);
	}
}
signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0);

	//f();
	srand(time(0));

	int t; cin >> t;


	while(t--){
		int n; cin >> n >> k;

		vector<int> a(n);
		for(auto &i: a) cin >> i;


		cout<<solve(a, 1);
	}
	

}

컴파일 시 표준 에러 (stderr) 메시지

football.cpp: In function 'void f()':
football.cpp:7:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |  freopen("in.txt", "r", stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
football.cpp:8:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |  freopen("out.txt", "w", stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• 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