제출 #678068

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
678068		hello_there_123	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	0 / 100	1 ms	1236 KiB

skyscraper

#include<bits/stdc++.h>
using namespace std;
#define int long long
vector<pair<int,int> >v[30005];
main(){
	int N,M;
	cin>>N>>M;
	vector<pair<int,int> >hi;
	for(int i=0;i<M;i++){
		int a,b;
		cin>>a>>b;
		hi.push_back(make_pair(a,b));
	}
	for(int i=0;i<M;i++){
		for(int j=0;j<M;j++){
			if(i==j)continue;
			if(abs(hi[i].first-hi[j].first)%hi[i].second == 0) v[i].push_back(make_pair(j,abs(hi[i].first-hi[j].first)/hi[i].second));
			if(abs(hi[i].first-hi[j].first)%hi[j].second == 0) v[j].push_back(make_pair(i,abs(hi[i].first-hi[j].first)/hi[j].second));
		}
	}
	priority_queue<pair<int,int> >pq;
	pq.push(make_pair(0,0));
	int dist[30005];
	for(int i=0;i<30004;i++) dist[i] = 1e12;
	dist[0] = 0;
	while(!pq.empty()){
		int dis = pq.top().first;
		int no = pq.top().second;
		pq.pop();
		if(dist[no]<dis)continue;
		for(pair<int,int>p:v[no]){
			if(dis+p.second<dist[p.first]){
				dist[p.first] = dis+p.second;
				pq.push(make_pair(p.first,dis+p.second));
			}
		}
	}
	if(dist[1] == 1e12) cout<<"-1";
	else cout<<dist[1];
}

컴파일 시 표준 에러 (stderr) 메시지

skyscraper.cpp:5:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    5 | main(){
      | ^~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 14
• Subtask 4: 0 / 21
• Subtask 5: 0 / 43