제출 #1220339

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1220339		KindaGoodGames	Text editor (CEOI24_editor)	C++20	0 / 100	4107 ms	339340 KiB

Main

#include<bits/stdc++.h>

using namespace std;
#define pii pair<int,int>
#define tiii tuple<int,int,int>

int main(){
    int n;
    int sr, sc;
    int er, ec;
    
    cin >> n;
    cin >> sr >> sc;
    cin >> er >> ec;

    sr--;sc--;
    er--;ec--;

    vector<int> arr(n);

    for(int i = 0; i < n; i++){
        cin >> arr[i];
    }

    priority_queue<tiii, vector<tiii>, greater<tiii>> pq;
    map<pii, int> dist;

    pq.push({0,sr,sc});

    while(pq.size()){
        int d,r,c;
        tie(d,r,c) = pq.top(); pq.pop();

        if(dist.count({r,c})) continue;
        dist[{r,c}] = d;

        if(r == er && ec == c) break;
        
        // horizontal
        if(c > 0) pq.push({d+1,r,c-1});
        else pq.push({d+1,r-1,arr[r-1]});
        if(c < arr[r]) pq.push({d+1,r,c+1});
        else if(r+1 < n) pq.push({d+1,r+1,0});

        // vertical 
        if(r > 0) pq.push({d+1,r-1,min(c,arr[r-1])}); 
        if(r < n) pq.push({d+1,r+1,min(c,arr[r+1])}); 
    }

    cout << dist[{er,ec}] << endl;
}

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