oj.uz

Submission #529620

# Submission time Handle Problem Language Result Execution time Memory
529620 2022-02-23T09:16:17 Z schse Nautilus (BOI19_nautilus) C++17
66 / 100
 20 ms 1604 KB 
#include <bits/stdc++.h>
using namespace std;
 
bool been[102][102][102];
bool lastpos[502][502];
 
string dirs;
vector<vector<bool>> field;
 
void dfs(int n, int x, int y)
{
    if (been[n][x][y])
        return;
    if (!field[y][x])
        return;
    if (n == dirs.size())
    {
        lastpos[y][x] = true;
        return;
    }
    been[n][x][y] = true;
    if (dirs[n] == 'N')
         dfs(n + 1, x, y - 1);
    else if (dirs[n] == 'S')
         dfs(n + 1, x, y + 1);
    else if (dirs[n] == 'W')
         dfs(n + 1, x - 1, y);
    else if (dirs[n] == 'E')
         dfs(n + 1, x + 1, y);
    else
    {
        dfs(n + 1, x, y - 1);
        dfs(n + 1, x, y + 1);
        dfs(n + 1, x - 1, y);
        dfs(n + 1, x + 1, y);
    }
}
 
int main()
{
    int R, C, M;
    cin >> R >> C >> M;
    field.resize(R + 2, vector<bool>(C + 2, 0));
    for (int i = 0; i < R; i++)
    {
        string str;
        cin >> str;
        for (int e = 0; e < str.size(); e++)
            field[i + 1][e + 1] = str[e] == '.';
    }
    cin >> dirs;
    int sum = 0;
    for (int x = 0; x < C; x++)
        for (int y = 0; y < R; y++)
            dfs(0, x + 1, y + 1);
 
    sum = 0;
    for (int x = 0; x < C; x++)
    {
        for (int y = 0; y < R; y++)
        {
            if (lastpos[y + 1][x + 1])
                sum++;
        }
    }
    cout << sum;
    return 0;
}

Compilation message

nautilus.cpp: In function 'void dfs(int, int, int)':
nautilus.cpp:16:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     if (n == dirs.size())
      |         ~~^~~~~~~~~~~~~~
nautilus.cpp: In function 'int main()':
nautilus.cpp:48:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |         for (int e = 0; e < str.size(); e++)
      |                         ~~^~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1336 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 716 KB Output is correct
5 Correct 1 ms 688 KB Output is correct
6 Correct 1 ms 716 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1336 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 716 KB Output is correct
5 Correct 1 ms 688 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 11 ms 1376 KB Output is correct
8 Correct 5 ms 1328 KB Output is correct
9 Correct 3 ms 1228 KB Output is correct
10 Correct 2 ms 972 KB Output is correct
11 Correct 1 ms 688 KB Output is correct
12 Correct 14 ms 1328 KB Output is correct
13 Correct 20 ms 1304 KB Output is correct
14 Correct 14 ms 1364 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 16 ms 1356 KB Output is correct
18 Correct 20 ms 1356 KB Output is correct
19 Correct 8 ms 1308 KB Output is correct
20 Correct 5 ms 1356 KB Output is correct
21 Correct 1 ms 716 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1336 KB Output is correct
2 Correct 1 ms 1228 KB Output is correct
3 Correct 1 ms 1228 KB Output is correct
4 Correct 1 ms 716 KB Output is correct
5 Correct 1 ms 688 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 11 ms 1376 KB Output is correct
8 Correct 5 ms 1328 KB Output is correct
9 Correct 3 ms 1228 KB Output is correct
10 Correct 2 ms 972 KB Output is correct
11 Correct 1 ms 688 KB Output is correct
12 Correct 14 ms 1328 KB Output is correct
13 Correct 20 ms 1304 KB Output is correct
14 Correct 14 ms 1364 KB Output is correct
15 Correct 2 ms 1356 KB Output is correct
16 Correct 1 ms 716 KB Output is correct
17 Correct 16 ms 1356 KB Output is correct
18 Correct 20 ms 1356 KB Output is correct
19 Correct 8 ms 1308 KB Output is correct
20 Correct 5 ms 1356 KB Output is correct
21 Correct 1 ms 716 KB Output is correct
22 Runtime error 9 ms 1604 KB Execution killed with signal 11
23 Halted 0 ms 0 KB -