제출 #443779

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
443779		impri	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	0 / 100	1 ms	716 KiB

skyscraper

#include<bits/stdc++.h>
using namespace std;
int main(void){
int n,m;
int arr[30001][2];
cin >> n >> m;
for(int i=0;i<m;i++)
    cin >> arr[i][0] >> arr[i][1];
long long dist[30001];

dist[0]=0;
for(int i=1;i<m;i++)
    dist[i]=10e15;
priority_queue<pair<long long,int> >q;
q.push({0,0});
while(!q.empty()){
    int cur=q.top().second;
    long long curdist=-q.top().first;
    q.pop();
    for(int i=1;i<=m;i++){

        if(abs(arr[cur][0]-arr[i][0])%arr[cur][1]!=0){
            continue;
        }
         int nxtdist=abs(arr[cur][0]-arr[i][0])/arr[cur][1];
         if(curdist+nxtdist<dist[i]){
          dist[i]=curdist+nxtdist;
          q.push({-dist[i],i});
         }
    }
}
if(dist[1]>10e12)cout << -1;
cout << dist[1];

}

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