제출 #919158

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
919158		vjudge1	Airplane (NOI23_airplane)	C++17	0 / 100	146 ms	14292 KiB

Main

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#include <bits/stdc++.h>

using namespace std;
const long int  base = 1e18;
int main()
{
    int n,m;
    cin>>n>>m;
    long long int a[n+1];
    long long int h[n+1];
    for(int i =1;i<=n;i++){
        cin>>a[i];
        h[i]=base;
    }
    vector<int> arr[n+1];
    for(int i =0;i<m;i++){
        int a,b;
        cin>>a>>b;
        arr[a].push_back(b);
        arr[b].push_back(a);
    }
    priority_queue<vector<long long int> , vector<vector<long long int>>, greater<vector<long long int>> > q;
    h[1]=0;
    q.push({0,1,0});
    while(!q.empty()){
        int u = q.top()[1];
        long long int d = q.top()[0];
        q.pop();
        if(d!=h[u])continue;
        for(int v : arr[u]){
            long long int height = q.top()[2];
            long long int ans = d+1;
            if(a[v]>height){
                ans+=(a[v]-height-1);
                height=a[v];
            }
            if(v==n)ans+=height;
            if(ans>=h[v])continue;
            h[v]=ans;
            q.push({ans,v,height});
        }
    }
    cout<<h[n]-1;
    
}

• Subtask 1: 0 / 22
• Subtask 2: 0 / 10
• Subtask 3: 0 / 31
• Subtask 4: 0 / 37