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Submission #945241

# Submission time Handle Problem Language Result Execution time Memory
945241 2024-03-13T14:50:31 Z LucaIlie Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 253212 KB 
#include <bits/stdc++.h>

using namespace std;

const int MAX_N = 500;
const int MAX_K = 5000;
char mat[MAX_N + 2][MAX_N + 2];
set <pair <int, int>> dp[MAX_K + 1];
int dl[4] = { -1, 0, 1, 0 };
int dc[4] = { 0, -1, 0, 1 };
int dir[256];

int main() {
    int n, m, k;

    dir['N'] = 0;
    dir['W'] = 1;
    dir['S'] = 2;
    dir['E'] = 3;

    cin >> n >> m >> k;
    for ( int l = 1; l <= n; l++ ) {
        for ( int c = 1; c <= m; c++ )
            cin >> mat[l][c];
    }
    for ( int l = 0; l <= n + 1; l++ )
        mat[l][0] = mat[l][m + 1] = '#';
    for ( int c = 0; c <= m + 1; c++ )
        mat[0][c] = mat[n + 1][c] = '#';

    string moves;
    cin >> moves;
    moves = " " + moves;

    for ( int l = 1; l <= n; l++ ) {
        for ( int c = 1; c <= m; c++ ) {
            if ( mat[l][c] == '.' )
                dp[0].insert( { l, c } );
        }
    }
    for ( int i = 1; i <= k; i++ ) {
        for ( pair <int, int> p: dp[i - 1] ) {
            if ( moves[i] == '?' ) {
                for ( int d = 0; d < 4; d++ ) {
                    int l = p.first + dl[d], c = p.second + dc[d];
                    if ( mat[l][c] == '.' )
                        dp[i].insert( { l, c } );
                }
            } else {
                int d = dir[moves[i]];
                int l = p.first + dl[d], c = p.second + dc[d];
                if ( mat[l][c] == '.' )
                    dp[i].insert( { l, c } );
            }
        }
    }


    cout << dp[k].size();

    return 0;
}

Compilation message

nautilus.cpp: In function 'int main()':
nautilus.cpp:50:37: warning: array subscript has type 'char' [-Wchar-subscripts]
   50 |                 int d = dir[moves[i]];
      |                                     ^

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 42580 KB Output is correct
2 Correct 7 ms 3420 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 2 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 604 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 42580 KB Output is correct
2 Correct 7 ms 3420 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 2 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 176 ms 46932 KB Output is correct
8 Correct 30 ms 9040 KB Output is correct
9 Correct 7 ms 2652 KB Output is correct
10 Correct 2 ms 1116 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 282 ms 48068 KB Output is correct
13 Correct 178 ms 35480 KB Output is correct
14 Correct 101 ms 22352 KB Output is correct
15 Correct 5 ms 1884 KB Output is correct
16 Correct 1 ms 860 KB Output is correct
17 Correct 353 ms 48132 KB Output is correct
18 Correct 224 ms 38736 KB Output is correct
19 Correct 75 ms 17236 KB Output is correct
20 Correct 21 ms 6492 KB Output is correct
21 Correct 1 ms 860 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 106 ms 42580 KB Output is correct
2 Correct 7 ms 3420 KB Output is correct
3 Correct 3 ms 1372 KB Output is correct
4 Correct 2 ms 860 KB Output is correct
5 Correct 1 ms 860 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 176 ms 46932 KB Output is correct
8 Correct 30 ms 9040 KB Output is correct
9 Correct 7 ms 2652 KB Output is correct
10 Correct 2 ms 1116 KB Output is correct
11 Correct 1 ms 860 KB Output is correct
12 Correct 282 ms 48068 KB Output is correct
13 Correct 178 ms 35480 KB Output is correct
14 Correct 101 ms 22352 KB Output is correct
15 Correct 5 ms 1884 KB Output is correct
16 Correct 1 ms 860 KB Output is correct
17 Correct 353 ms 48132 KB Output is correct
18 Correct 224 ms 38736 KB Output is correct
19 Correct 75 ms 17236 KB Output is correct
20 Correct 21 ms 6492 KB Output is correct
21 Correct 1 ms 860 KB Output is correct
22 Execution timed out 1060 ms 253212 KB Time limit exceeded
23 Halted 0 ms 0 KB -