답안 #1112981

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1112981 2024-11-15T10:43:18 Z Aviansh Airplane (NOI23_airplane) C++17
0 / 100
1000 ms 36688 KB
#include <bits/stdc++.h>

using namespace std;
int n,m;
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    int a[n];
    for(int &i : a){
        cin >> i;
    }
    vector<int>g[n];
    for(int i = 0;i<m;i++){
        int a,b;
        cin >> a >> b;
        a--;b--;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    set<array<int,3>>pq;
    pq.insert({0,0,0});
    //time,current height, place, downbool
    set<array<int,2>>vis;
    vis.insert({0,0});
    //height,place,downbool
    long long ans = 0;
    while(!pq.empty()){
        array<int,3>cur = *(pq.begin());
        //cout << cur[0] << " " << cur[1] << " " << cur[2] << " " << cur[3] << "\n";
        pq.erase(pq.begin());
        if(cur[1]>2000){
            continue;
        }
        if(cur[1]==0&&cur[2]==n-1){
            ans=cur[0];
            break;
        }
        if(vis.find({cur[1]+1,cur[2]})==vis.end())
            pq.insert({cur[0]+1,cur[1]+1,cur[2]});
        if(cur[1]>a[cur[2]]&&vis.find({cur[1]-1,cur[2]})==vis.end()){
            pq.insert({cur[0]+1,cur[1]-1,cur[2]});
        }
        for(int i : g[cur[2]]){
            if(cur[1]-1>=a[i]&&vis.find({cur[1]-1,i})==vis.end()){
                pq.insert({cur[0]+1,cur[1]-1,i});
                vis.insert({cur[1]-1,i});
            }
            if(cur[1]>=a[i]&&vis.find({cur[1],i})==vis.end()){
                pq.insert({cur[0]+1,cur[1],i});
                vis.insert({cur[1],i});
            }
            if(cur[1]+1>=a[i]&&vis.find({cur[1]+1,i})==vis.end()){
                pq.insert({cur[0]+1,cur[1]+1,i});
                vis.insert({cur[1]+1,i});
            }
        }
    }
    cout << ans;
    return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Execution timed out 1098 ms 36688 KB Time limit exceeded
3 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Execution timed out 1101 ms 19544 KB Time limit exceeded
7 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Execution timed out 1101 ms 19544 KB Time limit exceeded
7 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 336 KB Output is correct
2 Execution timed out 1098 ms 36688 KB Time limit exceeded
3 Halted 0 ms 0 KB -