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Submission #1120011

# Submission time Handle Problem Language Result Execution time Memory
1120011 2024-11-27T17:01:27 Z heey Awesome Arrowland Adventure (eJOI19_adventure) C++14
100 / 100
 121 ms 18252 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
int h[200005];
struct g{int x, y, t;};
bool cmp(g l, g r){
    return l.t < r.t;
}
int df(char cur, char dir){
    if(cur == dir) return 0;
    if(cur == 'N') return 1 + df('E', dir);
    if(cur == 'E') return 1 + df('S', dir);
    if(cur == 'S') return 1 + df('W', dir);
    if(cur == 'W') return 1 + df('N', dir);

    return 0; 
}

signed main(){
    //ios_base::sync_with_stdio(0); cin.tie(0);
    int n, m; cin >> n >> m;
    vector<vector<char>> a(n, vector<char>(m));

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

    vector<vector<int>> d(n, vector<int>(m, INT_MAX));
    vector<vector<bool>> u(n, vector<bool>(m, false));
    d[0][0] = 0;

    multiset<g, decltype(&cmp)> pick(cmp);

    pick.insert({0, 0, 0});
    while(!pick.empty()){
        //if(d[n-1][m-1] != INT_MAX) break;

        int x, y;
        g cur = *pick.begin();
        pick.erase(pick.find(cur));



        x = cur.x;
        y = cur.y;
        if(d[x][y] == INT_MAX) break;


        if(u[x][y]) continue;
        u[x][y] = true;
        if(a[x][y] == 'X') continue;

        if(x > 0) {
            int tm = d[x][y] + df(a[x][y], 'N');
            if(d[x-1][y] > tm){
                d[x-1][y] = tm;
                pick.insert({x-1, y, tm});
            }
        }
        if(x < n-1){
            int tm =  d[x][y] + df(a[x][y], 'S');
            if(d[x+1][y] > tm){
                d[x+1][y] = tm;
                pick.insert({ x+1, y, tm});
            }
        }
        if(y > 0) {
            int tm  = d[x][y] + df(a[x][y], 'W');
            if(d[x][y-1] > tm){
                d[x][y-1] = tm;
                pick.insert({ x, y-1, tm});
            }
        }
        if(y < m-1) {
            int tm =  d[x][y] + df(a[x][y], 'E');
            if(d[x][y+1] > tm){
                d[x][y+1] = tm;
                pick.insert({x, y+1, tm});
            }
        }

    }

    if(d[n-1][m-1] == INT_MAX) cout << "-1";
    else cout << d[n-1][m-1];

    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 380 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 396 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 380 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 396 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 508 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 504 KB Output is correct
2 Correct 1 ms 380 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 396 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 596 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 508 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 1 ms 340 KB Output is correct
35 Correct 7 ms 596 KB Output is correct
36 Correct 1 ms 340 KB Output is correct
37 Correct 9 ms 596 KB Output is correct
38 Correct 3 ms 708 KB Output is correct
39 Correct 70 ms 3020 KB Output is correct
40 Correct 78 ms 2900 KB Output is correct
41 Correct 10 ms 2900 KB Output is correct
42 Correct 80 ms 3020 KB Output is correct
43 Correct 121 ms 18252 KB Output is correct
44 Correct 15 ms 2900 KB Output is correct