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Submission #1094531

# Submission time Handle Problem Language Result Execution time Memory
1094531 2024-09-29T19:36:52 Z Tesla89 Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 78 ms 23348 KB 
#include <bits/stdc++.h>
#define fi first
#define se second

using namespace std;

struct idk{
    int i,j,w;
};

char mat[501][501];
int d[501][501];
vector<idk>graf[501][501];

bool operator <(const idk &a,const idk &b){
    return a.w<b.w;
}

void dijkstra(int si,int sj){
    set<pair<int,pair<int,int>>>setic;
    setic.insert({si,{sj,0}});
    d[si][sj]=0;
    while(!setic.empty()){
        int i = (*setic.begin()).se.fi;
        int j = (*setic.begin()).se.se;
        setic.erase(setic.begin());
        for(idk v : graf[i][j]){
            if(d[v.i][v.j]>d[i][j]+v.w){
                setic.erase({d[v.i][v.j],{v.i,v.j}});
                d[v.i][v.j]=d[i][j]+v.w;
                setic.insert({d[v.i][v.j],{v.i,v.j}});
            }
        }
    }
}

int calc(char c){
    switch(c){
        case 'N':return 0;
        case 'W':return 1;
        case 'S':return 2;
        case 'E':return 3;
    }
}

int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    for(int i=0;i<501;i++)for(int j=0;j<501;j++)d[i][j]=INT_MAX;
    int n,m;
    cin>>n>>m;
    for(int i=0;i<n;i++)
        for(int j=0;j<m;j++)cin>>mat[i][j];

    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            if(mat[i][j]=='X')continue;
            if(i!=0)graf[i][j].push_back({i-1,j,(calc(mat[i][j])+4)%4});
            if(j!=0)graf[i][j].push_back({i,j-1,(calc(mat[i][j])+3)%4});
            if(i+1!=n)graf[i][j].push_back({i+1,j,(calc(mat[i][j])+2)%4});
            if(j+1!=m)graf[i][j].push_back({i,j+1,(calc(mat[i][j])+1)%4});
        }
    }
    dijkstra(0,0);
    if(d[n-1][m-1]==INT_MAX)cout<<"-1\n";
    else cout<<d[n-1][m-1]<<endl;
    return 0;
}

Compilation message

adventure.cpp: In function 'int calc(char)':
adventure.cpp:44:1: warning: control reaches end of non-void function [-Wreturn-type]
   44 | }
      | ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7260 KB Output is correct
2 Correct 3 ms 7260 KB Output is correct
3 Correct 4 ms 7260 KB Output is correct
4 Correct 3 ms 7260 KB Output is correct
5 Correct 3 ms 7260 KB Output is correct
6 Correct 3 ms 7260 KB Output is correct
7 Correct 3 ms 7260 KB Output is correct
8 Correct 4 ms 7260 KB Output is correct
9 Correct 3 ms 7340 KB Output is correct
10 Correct 3 ms 7260 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7260 KB Output is correct
2 Correct 3 ms 7260 KB Output is correct
3 Correct 4 ms 7260 KB Output is correct
4 Correct 3 ms 7260 KB Output is correct
5 Correct 3 ms 7260 KB Output is correct
6 Correct 3 ms 7260 KB Output is correct
7 Correct 3 ms 7260 KB Output is correct
8 Correct 4 ms 7260 KB Output is correct
9 Correct 3 ms 7340 KB Output is correct
10 Correct 3 ms 7260 KB Output is correct
11 Correct 3 ms 7260 KB Output is correct
12 Correct 3 ms 7268 KB Output is correct
13 Correct 3 ms 7260 KB Output is correct
14 Correct 3 ms 7260 KB Output is correct
15 Correct 3 ms 7260 KB Output is correct
16 Correct 3 ms 7260 KB Output is correct
17 Correct 3 ms 7260 KB Output is correct
18 Correct 3 ms 7260 KB Output is correct
19 Correct 3 ms 7260 KB Output is correct
20 Correct 3 ms 7260 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7260 KB Output is correct
2 Correct 3 ms 7260 KB Output is correct
3 Correct 3 ms 7332 KB Output is correct
4 Correct 3 ms 7260 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7256 KB Output is correct
2 Correct 4 ms 7260 KB Output is correct
3 Correct 3 ms 7260 KB Output is correct
4 Correct 3 ms 7260 KB Output is correct
5 Correct 3 ms 7260 KB Output is correct
6 Correct 3 ms 7336 KB Output is correct
7 Correct 3 ms 7260 KB Output is correct
8 Correct 3 ms 7276 KB Output is correct
9 Correct 3 ms 7260 KB Output is correct
10 Correct 3 ms 7260 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7260 KB Output is correct
2 Correct 3 ms 7260 KB Output is correct
3 Correct 4 ms 7260 KB Output is correct
4 Correct 3 ms 7260 KB Output is correct
5 Correct 3 ms 7260 KB Output is correct
6 Correct 3 ms 7260 KB Output is correct
7 Correct 3 ms 7260 KB Output is correct
8 Correct 4 ms 7260 KB Output is correct
9 Correct 3 ms 7340 KB Output is correct
10 Correct 3 ms 7260 KB Output is correct
11 Correct 3 ms 7260 KB Output is correct
12 Correct 3 ms 7268 KB Output is correct
13 Correct 3 ms 7260 KB Output is correct
14 Correct 3 ms 7260 KB Output is correct
15 Correct 3 ms 7260 KB Output is correct
16 Correct 3 ms 7260 KB Output is correct
17 Correct 3 ms 7260 KB Output is correct
18 Correct 3 ms 7260 KB Output is correct
19 Correct 3 ms 7260 KB Output is correct
20 Correct 3 ms 7260 KB Output is correct
21 Correct 3 ms 7260 KB Output is correct
22 Correct 3 ms 7260 KB Output is correct
23 Correct 3 ms 7332 KB Output is correct
24 Correct 3 ms 7260 KB Output is correct
25 Correct 5 ms 7256 KB Output is correct
26 Correct 4 ms 7260 KB Output is correct
27 Correct 3 ms 7260 KB Output is correct
28 Correct 3 ms 7260 KB Output is correct
29 Correct 3 ms 7260 KB Output is correct
30 Correct 3 ms 7336 KB Output is correct
31 Correct 3 ms 7260 KB Output is correct
32 Correct 3 ms 7276 KB Output is correct
33 Correct 3 ms 7260 KB Output is correct
34 Correct 3 ms 7260 KB Output is correct
35 Correct 9 ms 8384 KB Output is correct
36 Correct 3 ms 7260 KB Output is correct
37 Correct 9 ms 8540 KB Output is correct
38 Correct 6 ms 9564 KB Output is correct
39 Correct 78 ms 20292 KB Output is correct
40 Correct 73 ms 20136 KB Output is correct
41 Correct 24 ms 20264 KB Output is correct
42 Correct 75 ms 20308 KB Output is correct
43 Correct 65 ms 23348 KB Output is correct
44 Correct 25 ms 20316 KB Output is correct