제출 #515881

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
515881		ac2hu	새로운 문제 (POI13_mor)	C++14	0 / 100	976 ms	117780 KiB

mor

#include <bits/stdc++.h>
using namespace std;
void setIO(string name) {
	#ifdef DEBUG
	#else 
	ios_base::sync_with_stdio(0); cin.tie(0);
	freopen((name+".in").c_str(),"r",stdin);
	freopen((name+".out").c_str(),"w",stdout);
	#endif
}
signed main(){
	iostream::sync_with_stdio(false);
	cin.tie(nullptr);cout.tie(nullptr);
	int n,m,k;cin >> n >> m >> k;
	vector<int> adj[n];
	for(int i = 0;i<m;i++){
		int a,b;cin >> a >> b;
		a--;b--;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	vector<vector<int>> dist(n,vector<int>(n,1e9 + 10));
	for(int i = 0;i<n;i++){
		queue<int> q;
		dist[i][i] = 0;
		q.push(i);
		while(!q.empty()){
			int x = q.front();
			q.pop();
			for(auto e : adj[x]){
				if(dist[i][e] > dist[i][x] + 1){
					dist[i][e] = dist[i][x] + 1;
					q.push(e);
				}
			}
		}
	}
	// for(int i = 0;i<n;i++){
	// 	for(int j =0 ;j<n;j++)
	// 		cout << dist[i][j] << " ";
	// 	cout << "\n";
	// }
	for(int _ = 0;_<k;_++){
		int a,b,d;cin >> a >> b >> d;
		a--;b--;
		if(dist[a][b] <= d)
			cout << "TAK\n";
		else 
			cout << "NIE\n";
	}
}

컴파일 시 표준 에러 (stderr) 메시지

mor.cpp: In function 'void setIO(std::string)':
mor.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((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mor.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((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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