oj.uz

Submission #935755

# Submission time Handle Problem Language Result Execution time Memory
935755 2024-02-29T13:38:13 Z anton Maze (JOI23_ho_t3) C++17
0 / 100
 2000 ms 848 KB 
#include<bits/stdc++.h>


using namespace std;
#define int long long
#define pii pair<int, int>

int R, C;
int N;

pii debut;
pii fin;

vector<vector<char>> maze;
vector<vector<bool>> vis;

pii delta[4] = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

bool is_valid(pii pos){
    if(pos.first>=R || pos.first< 0){
        return false;
    }
    if(pos.second>=C || pos.second<0){
        return false;
    }
    return true;
}

vector<pii> get_free(pii pos){
    vector<pii> res;
    for(auto d: delta){
        pii c= {pos.first+d.first, pos.second+d.second};
        if(is_valid(c) && maze[c.first][c.second] != '#'){
            res.push_back(c);
        }
    }
    return res;
}

vector<pii> get_paid(pii pos){
    vector<pii> res;

    for(int i = 0; i<R; i++){
        for(int j = 0; j<C; j++){
            pii c= {i, j};
            if(abs(c.first-pos.first)<=N && abs(c.second-pos.second)<=N){
                if(abs(c.first-pos.first)<N || abs(c.second-pos.second)<N){
                    res.push_back(c);
                }
            }
        }
    }

    /*for(int i= -N; i<=N; i+=2*N){
        for(int j = -(N-1); j<=N-1; j++){
            pii c = {pos.first+i, pos.second+j};
            if(is_valid(c)){
                res.push_back(c);
            }
        }
    }

    for(int i= -N; i<=N; i+=2*N){
        for(int j = -(N-1); j<=N-1; j++){
            pii c = {pos.first+j, pos.second+i};
            if(is_valid(c)){
                res.push_back(c);
            }
        }
    }*/
    return res;
}


void display(){
    for(int i = 0; i<R; i++){
        for(int j = 0; j<C; j++){
            if(maze[i][j]=='.'){
                if(vis[i][j]){
                    cout<<'o';
                }
                else{
                    cout<<'.';
                }
            }
            else{
                if(vis[i][j]){
                    cout<<'O';
                }
                else{
                    cout<<'#';
                }
            }
        }
        cout<<endl;
    }
    cout<<endl;
}
int BFS(){
    deque<pair<pii, int>> dq;
    dq.push_back({debut, 0});
    vis[debut.first][debut.second] = true;

    
    while(dq.size()>0){
        //display();
        auto cur= dq.front();
        dq.pop_front();
        pii cur_pos =cur.first;

        int dist = cur.second;
        //cout<<dist<<endl;

        if(cur_pos == fin){
            return dist;
        }
        
        for(auto e: get_free(cur_pos)){
            if(!vis[e.first][e.second]){
                vis[e.first][e.second] = true;
                dq.push_front({e, dist});
            }
        }

        for(auto e: get_paid(cur_pos)){
            if(!vis[e.first][e.second]){
                vis[e.first][e.second] = true;
                dq.push_back({e, dist+1});
            }
        }
    }
    return 1e9;

}

signed main(){
    cin>>R>>C;
    cin>>N;

    maze.resize(R, vector<char> (C));
    vis.resize(R, vector<bool>(C));

    cin>>debut.first>>debut.second;
    debut.first--;
    debut.second--;
    cin>>fin.first>>fin.second;
    fin.first--;
    fin.second--;

    
    for(int i = 0; i<R; i++){
        for(int j = 0; j<C; j++){
            cin>>maze[i][j];
        }
    }

    cout<<BFS()<<endl;

}

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 512 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1802 ms 820 KB Output is correct
20 Correct 1581 ms 548 KB Output is correct
21 Correct 464 ms 848 KB Output is correct
22 Correct 1892 ms 588 KB Output is correct
23 Execution timed out 2075 ms 564 KB Time limit exceeded
24 Halted 0 ms 0 KB -

Subtask #2
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 512 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1802 ms 820 KB Output is correct
20 Correct 1581 ms 548 KB Output is correct
21 Correct 464 ms 848 KB Output is correct
22 Correct 1892 ms 588 KB Output is correct
23 Execution timed out 2075 ms 564 KB Time limit exceeded
24 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 512 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1802 ms 820 KB Output is correct
20 Correct 1581 ms 548 KB Output is correct
21 Correct 464 ms 848 KB Output is correct
22 Correct 1892 ms 588 KB Output is correct
23 Execution timed out 2075 ms 564 KB Time limit exceeded
24 Halted 0 ms 0 KB -

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 512 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 600 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 432 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1802 ms 820 KB Output is correct
20 Correct 1581 ms 548 KB Output is correct
21 Correct 464 ms 848 KB Output is correct
22 Correct 1892 ms 588 KB Output is correct
23 Execution timed out 2075 ms 564 KB Time limit exceeded
24 Halted 0 ms 0 KB -