oj.uz

Submission #916992

# Submission time Handle Problem Language Result Execution time Memory
916992 2024-01-26T23:02:54 Z vjudge1 Nautilus (BOI19_nautilus) C++17
100 / 100
 143 ms 860 KB 
#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
using namespace std;
void solve()
{
    int r, c, m;
    cin >> r >> c >> m;
    vector<vector<bool>> grid(r, vector<bool>(c));
    for (int i = 0; i < r; i++)
        for (int j = 0; j < c; j++)
        {
            char c;
            cin >> c;
            if (c == '.')
                grid[i][j] = 0;
            else
                grid[i][j] = 1;
        }
    vector<char> does(m);
    for (int i = 0; i < m; i++)
        cin >> does[i];
    vector<bitset<500>> prev(r);
    // i hate bitstes
    vector<bitset<500>> after(r);
    for (int i = 0; i < r; i++)
        for (int j = 0; j < c; j++)
            after[i][j] = !grid[i][j];
    // ja sam mirza bušatlić
    // aprapraprpa
    vector<bitset<500>> next(r);
    for (int i = 0; i < r; i++)
        for (int j = 0; j < c; j++)
            prev[i][j] = !grid[i][j];

    for (int cur = 0; cur < m; cur++)
    {
        for (int i = 0; i < r; i++)
        {
            if (does[cur] == 'W')
            {
                next[i]|=(prev[i]>>1);
            }
            else if (does[cur] == 'S')
            {
                if (i+1 < r)
                    next[i+1]|=prev[i];
            }
            else if (does[cur] == 'E')
            {
                next[i]|=(prev[i]<<1);
            }
            else if (does[cur] == 'N')
            {
                if (i-1 >= 0)
                    next[i-1]|=prev[i];
            }
            else
            {
                next[i]|=(prev[i]<<1);
                if (i+1 < r)
                    next[i+1]|=prev[i];
                next[i]|=(prev[i]>>1);
                if (i-1 >= 0)
                    next[i-1]|=prev[i];
            }        
        }
        for (int i = 0; i < r; i++)
        {
            next[i] &= after[i];
            prev[i] = next[i];
            next[i].reset();
        }
    
    }
    int ans = 0;
    for (int i = 0; i < r; i++)
        ans+=prev[i].count();
    cout << ans << '\n';
    return;
}
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    solve();
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 464 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 464 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 464 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 1 ms 348 KB Output is correct
20 Correct 1 ms 392 KB Output is correct
21 Correct 1 ms 460 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 464 KB Output is correct
5 Correct 1 ms 600 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 464 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 1 ms 348 KB Output is correct
20 Correct 1 ms 392 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 83 ms 604 KB Output is correct
23 Correct 86 ms 844 KB Output is correct
24 Correct 83 ms 860 KB Output is correct
25 Correct 83 ms 844 KB Output is correct
26 Correct 81 ms 604 KB Output is correct
27 Correct 116 ms 840 KB Output is correct
28 Correct 115 ms 604 KB Output is correct
29 Correct 116 ms 604 KB Output is correct
30 Correct 116 ms 844 KB Output is correct
31 Correct 113 ms 840 KB Output is correct
32 Correct 143 ms 860 KB Output is correct
33 Correct 140 ms 840 KB Output is correct
34 Correct 140 ms 848 KB Output is correct
35 Correct 142 ms 860 KB Output is correct
36 Correct 138 ms 860 KB Output is correct