oj.uz

Submission #990204

# Submission time Handle Problem Language Result Execution time Memory
990204 2024-05-29T21:39:00 Z user736482 Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 80 ms 6672 KB 
#include <bits/stdc++.h>
using namespace std;

int plansza[510][510][3];//czybylo koszt stan
int m,n;
char ch;
priority_queue<pair<int,pair<int,int>>,vector<pair<int,pair<int,int>>>,greater<pair<int,pair<int,int>>>>pq;

int main()
{
    cin>>n>>m;
    plansza[n][m][2]=1;
    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            plansza[i+1][j+1][1]=99999999;
            cin>>ch;
            if(ch=='N')
                plansza[i+1][j+1][2]=1;
            if(ch=='E')
                plansza[i+1][j+1][2]=2;
            if(ch=='S')
                plansza[i+1][j+1][2]=3;
            if(ch=='W')
                plansza[i+1][j+1][2]=4;
        }
    }
    if(plansza[1][1][2]==0){
        cout<<-1;
        return 0;
    }
    plansza[1][1][1]=0;
    pq.push({0,{1,1}});
    /*for(int i=-1;i<2;i+=2){
        for(int j=0;j<2 && j>-2;j+=-i){
            if(plansza[1+i+j][1+j][2]!=0){
                pq.push({plansza[1][1][1]+(plansza[1][1][2]-1-(1+i+(j!=0))+4)%4,{1+i+j,1+j}});
                plansza[1+i+j][1+j][1]=plansza[1][1][1]+(plansza[1][1][2]-1-(1+i+(j!=0))+4)%4;
                //cout<<plansza[1][1][1]+(plansza[1][1][2]-1-(1+i+(j!=0))+4)%4<<" "<<1+i+j<<" "<<1+j<<" a ";
                }
                //pq.pop();}
        }
    }*/
    while(!pq.empty()){
        pair<int,pair<int,int>>ak=pq.top();
        vector<pair<int,pair<int,int>>>v;
        for(int i=-1;i<2;i+=2){
            for(int j=0;j<2 && j>-2;j+=-i){
                if(plansza[ak.second.first+i+j][ak.second.second+j][2]!=0 && plansza[ak.second.first+i+j][ak.second.second+j][1]>ak.first+(-(plansza[ak.second.first][ak.second.second][2]-1-(1+i+(j!=0)))+4)%4){
                    v.push_back({ak.first+(-(plansza[ak.second.first][ak.second.second][2]-1-(1+i+(j!=0)))+4)%4,{ak.second.first+i+j,ak.second.second+j}});
                    plansza[ak.second.first+i+j][ak.second.second+j][1]=ak.first+(-(plansza[ak.second.first][ak.second.second][2]-1-(1+i+(j!=0)))+4)%4;
                    //cout<<ak.first+(-(plansza[ak.second.first][ak.second.second][2]-1-(1+i+(j!=0)))+4)%4<<" "<<ak.second.first+i+j<<" "<<ak.second.second+j<<"   ";
                }
                    
                    //pq.pop();}
            }
        }
        //cout<<pq.top().first<<" "<<pq.top().second.first<<" "<<pq.top().second.second<<"\n";
        pq.pop();
        for(int i=0;i<v.size();i++)
            pq.push(v[i]);
    }
    if(plansza[n][m][1]==99999999)
        cout<<-1;
    else
        cout<<plansza[n][m][1];
    return 0;
}
/*
4 4
SEEX
XESS
SNSS
ENEX*/

Compilation message

adventure.cpp: In function 'int main()':
adventure.cpp:59:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   59 |         for(int i=0;i<v.size();i++)
      |                     ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 428 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 428 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 444 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 604 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 428 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 444 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 604 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 6 ms 2648 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 7 ms 2496 KB Output is correct
38 Correct 2 ms 2652 KB Output is correct
39 Correct 44 ms 3696 KB Output is correct
40 Correct 44 ms 3692 KB Output is correct
41 Correct 11 ms 3672 KB Output is correct
42 Correct 45 ms 3676 KB Output is correct
43 Correct 80 ms 6672 KB Output is correct
44 Correct 11 ms 3544 KB Output is correct