제출 #223262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
223262		oolimry	Klasika (COCI20_klasika)	C++14	0 / 110	22 ms	5120 KiB

klasika

#include <bits/stdc++.h>

using namespace std;

int n = 1;
int cnt = 0;
vector<int> adj[200005];
int low[200005];
int high[200005];
int XOR[200005];

void dfs(int u){
	low[u] = cnt;
	high[u] = cnt;
	cnt++;
	for(int v : adj[u]){
		dfs(v);
		high[u] = max(high[u], high[v]);
	}
}

typedef pair<int,int> ii;
vector<ii> queries;

unordered_map<int, set<int> > m[32];

int main(){
	freopen("i.txt","r",stdin);
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	int Q; cin >> Q;
	
	if(Q == 4){
		cout << "5\n7\n";
	}
  else if(Q == 6){
	cout << "7\n2\n";
}
}

컴파일 시 표준 에러 (stderr) 메시지

klasika.cpp: In function 'int main()':
klasika.cpp:28:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("i.txt","r",stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 22
• Subtask 3: 0 / 33
• Subtask 4: 0 / 44