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Submission #1021357

# Submission time Handle Problem Language Result Execution time Memory
1021357 2024-07-12T17:16:23 Z lamagril Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 24 ms 27228 KB 
#include <bits/stdc++.h>

using namespace std;

int main(){
    cin.tie(NULL)->sync_with_stdio(false);
    int n,m,d,k; cin >> n >> m >> d >> k;
    char mp[n+5][m+5];
    int v[n+5][m+5],qs[n+5][m+5];
    for(int i=0 ; i<=n ; i++){
        for(int j=0 ; j<=m ; j++){
            v[i][j]=0;
            qs[i][j]=0;
        }
    }
    int ans=0;
    for(int i=1 ; i<=n ; i++){
        for(int j=1 ; j<=m ; j++){
            cin >> mp[i][j];
        }
    }
    for(int i=1 ; i<=n ; i++){
        for(int j=1 ; j<=m ; j++){
            if(mp[i][j]=='S'){
                v[max(1,i-d)][max(1,j-d)]++;
                if(j+d+1<=m) v[max(1,i-d)][j+d+1]--;
                if(i+d+1<=n) v[i+d+1][max(1,j-d)]--;
                if(i+d+1<=n && j+d+1<=m) v[i+d+1][j+d+1]++;
            }
        }
    }
    for(int i=1 ; i<=n ; i++){
        for(int j=1 ; j<=m ; j++){
            qs[i][j]=qs[i-1][j]+qs[i][j-1]-qs[i-1][j-1]+v[i][j];
        }
    }
    for(int i=1 ; i<=n ; i++){
        for(int j=1 ; j<=m ; j++){
            if(mp[i][j]=='M'){
                if(qs[i][j]>=k) ans++;
            }
        }
    }
    cout << ans << '\n';
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 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 #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 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 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #3
18.0 / 18.0

# 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 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 2140 KB Output is correct
2 Correct 4 ms 2140 KB Output is correct
3 Correct 7 ms 2904 KB Output is correct
4 Correct 3 ms 2396 KB Output is correct
5 Correct 5 ms 2512 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 26712 KB Output is correct
2 Correct 20 ms 26716 KB Output is correct
3 Correct 24 ms 27212 KB Output is correct
4 Correct 22 ms 27228 KB Output is correct
5 Correct 22 ms 27224 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 356 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 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 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 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 3 ms 2140 KB Output is correct
17 Correct 4 ms 2140 KB Output is correct
18 Correct 7 ms 2904 KB Output is correct
19 Correct 3 ms 2396 KB Output is correct
20 Correct 5 ms 2512 KB Output is correct
21 Correct 24 ms 26712 KB Output is correct
22 Correct 20 ms 26716 KB Output is correct
23 Correct 24 ms 27212 KB Output is correct
24 Correct 22 ms 27228 KB Output is correct
25 Correct 22 ms 27224 KB Output is correct
26 Correct 11 ms 6052 KB Output is correct
27 Correct 11 ms 5208 KB Output is correct
28 Correct 11 ms 5724 KB Output is correct
29 Correct 10 ms 5800 KB Output is correct
30 Correct 15 ms 5724 KB Output is correct