oj.uz

Submission #440986

# Submission time Handle Problem Language Result Execution time Memory
440986 2021-07-03T21:03:51 Z MrDeboo Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 87 ms 4952 KB 
#include <bits/stdc++.h>
#define mod 1000000007
#define endl '\n'
using namespace std;
int idk(char a,char b){
    if(a=='N'){
        if(b=='N')return 0;
        if(b=='E')return 1;
        if(b=='S')return 2;
        if(b=='W')return 3;
    }
    if(a=='E'){
        if(b=='N')return 3;
        if(b=='E')return 0;
        if(b=='S')return 1;
        if(b=='W')return 2;
    }
    if(a=='S'){
        if(b=='N')return 2;
        if(b=='E')return 3;
        if(b=='S')return 0;
        if(b=='W')return 1;
    }
    if(a=='W'){
        if(b=='N')return 1;
        if(b=='E')return 2;
        if(b=='S')return 3;
        if(b=='W')return 0;
    }
}
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int n,m;
    cin>>n>>m;
    char arr[n][m];
    for(int i=0;i<n;i++){
        for(int w=0;w<m;w++){
            cin>>arr[i][w];
        }
    }
    priority_queue<pair<long long,pair<int,int>>,vector<pair<long long,pair<int,int>>>,greater<pair<long long,pair<int,int>>>>pq;
    bool bl[n][m];
    memset(bl,false,sizeof(bl));
    pq.push({0,{0,0}});
    while(pq.size()){
        long long v=pq.top().first;
        int i=pq.top().second.first;
        int w=pq.top().second.second;
        if(i==n-1&&w==m-1){cout<<v;return 0;}
        pq.pop();
        if(bl[i][w]||arr[i][w]=='X')continue;
        bl[i][w]=true;
        if(i>0&&!bl[i-1][w]/*&&(arr[i-1][w]!='X'||(i-1==n-1&&w==m-1))*/)pq.push({v+idk(arr[i][w],'N'),{i-1,w}});
        if(i<n-1&&!bl[i+1][w]/*&&(arr[i+1][w]!='X'||(i+1==n-1&&w==m-1))*/)pq.push({v+idk(arr[i][w],'S'),{i+1,w}});
        if(w>0&&!bl[i][w-1]/*&&(arr[i][w-1]!='X'||(i==n-1&&w-1==m-1))*/)pq.push({v+idk(arr[i][w],'W'),{i,w-1}});
        if(w<m-1&&!bl[i][w+1]/*&&(arr[i][w+1]!='X'||(i==n-1&&w+1==m-1))*/)pq.push({v+idk(arr[i][w],'E'),{i,w+1}});
    }
    cout<<-1;
}
//1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
//0 1 0 1 0 1 0 1 0 1  0  1  0  1  0
//0 0 1 0 0 1 0 0 1 0  0  1  0  0  1
//
//1 3 2 4

Compilation message

adventure.cpp: In function 'int idk(char, char)':
adventure.cpp:30:1: warning: control reaches end of non-void function [-Wreturn-type]
   30 | }
      | ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 268 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 268 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 7 ms 332 KB Output is correct
36 Correct 0 ms 204 KB Output is correct
37 Correct 8 ms 376 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 83 ms 884 KB Output is correct
40 Correct 87 ms 856 KB Output is correct
41 Correct 4 ms 684 KB Output is correct
42 Correct 85 ms 848 KB Output is correct
43 Correct 54 ms 4952 KB Output is correct
44 Correct 4 ms 716 KB Output is correct