oj.uz

Submission #1006003

# Submission time Handle Problem Language Result Execution time Memory
1006003 2024-06-23T10:07:02 Z kebine Collecting Mushrooms (NOI18_collectmushrooms) C++17
100 / 100
 14 ms 5620 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
    int R,C,D,S;
    cin >> R >> C >> D >> S;
    string grid[R];
    int pref[R+1][C+1];
    memset(pref,0,sizeof(pref));
    for(int i=0;i<R;i++){
        cin >> grid[i];
        for(int j=0;j<C;j++){
            if(grid[i][j] == 'S'){
                int a = max(0,i-D);
                int b = min(i+D+1,R);
                int c = max(0,j-D);
                int d = min(j+D+1,C);
                pref[a][c]++;
                pref[a][d]--;
                pref[b][c]--;
                pref[b][d]++;
            }
        }
    }
    for(int i=0;i<R;i++){
        for(int j=0;j<C;j++){
            if(i > 0){
                pref[i][j] += pref[i-1][j];
            }
            if(j > 0){
                pref[i][j] += pref[i][j-1];
            }
            if(i > 0 && j > 0){
                pref[i][j] -= pref[i-1][j-1];
            }
        }
    }
    int ans = 0;
    for(int i=0;i<R;i++){
        for(int j=0;j<C;j++){
            if(grid[i][j] == 'M' && pref[i][j] >= S){
                ans++;
            }
        }
    }
    cout << ans << "\n";
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1372 KB Output is correct
2 Correct 4 ms 1372 KB Output is correct
3 Correct 4 ms 1884 KB Output is correct
4 Correct 4 ms 1628 KB Output is correct
5 Correct 4 ms 1372 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 5368 KB Output is correct
2 Correct 10 ms 5384 KB Output is correct
3 Correct 10 ms 5620 KB Output is correct
4 Correct 11 ms 5372 KB Output is correct
5 Correct 10 ms 5420 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 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 4 ms 1372 KB Output is correct
17 Correct 4 ms 1372 KB Output is correct
18 Correct 4 ms 1884 KB Output is correct
19 Correct 4 ms 1628 KB Output is correct
20 Correct 4 ms 1372 KB Output is correct
21 Correct 11 ms 5368 KB Output is correct
22 Correct 10 ms 5384 KB Output is correct
23 Correct 10 ms 5620 KB Output is correct
24 Correct 11 ms 5372 KB Output is correct
25 Correct 10 ms 5420 KB Output is correct
26 Correct 14 ms 4188 KB Output is correct
27 Correct 9 ms 3164 KB Output is correct
28 Correct 10 ms 2836 KB Output is correct
29 Correct 13 ms 2908 KB Output is correct
30 Correct 12 ms 3932 KB Output is correct