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Submission #1005973

# Submission time Handle Problem Language Result Execution time Memory
1005973 2024-06-23T09:52:01 Z KindaNameless Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 19 ms 13492 KB 
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ld long double

void solve(){
    int R, C, D, S; cin >> R >> C >> D >> S;

    vector<pair<int, int>> mushrooms;
    vector<vector<int>> P(R + 1, vector<int>(C + 1));
    vector<vector<char>> M(R + 1, vector<char>(C + 1));
    for(int i = 1; i <= R; ++i){
        for(int j = 1; j <= C; ++j){
            cin >> M[i][j];
            if(M[i][j] == 'M'){
                mushrooms.push_back({i, j});
            }
            else if(M[i][j] == 'S'){
                P[i][j] = 1;
            }
            P[i][j] += P[i][j - 1] + P[i - 1][j] - P[i - 1][j - 1];
        }
    }

    int answer = 0;
    for(auto elem : mushrooms){
        int x = elem.first, y = elem.second;
        int a = max(1, x - D), b = max(1, y - D), c = min(R, x + D), d = min(C, y + D);

        //cout << x << " " << y << " " << a << " " << b << " " << c << " " << d << "\n";

        if(P[c][d] - P[a - 1][d] - P[c][b - 1] + P[a - 1][b - 1] >= S){
            answer++;
        }
    }

    cout << answer;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int tc = 1; //cin >> tc;

    while(tc--){
        solve();
    }

    return 0;
}

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 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 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 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 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 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 0 ms 604 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1368 KB Output is correct
2 Correct 2 ms 1372 KB Output is correct
3 Correct 2 ms 1628 KB Output is correct
4 Correct 2 ms 1372 KB Output is correct
5 Correct 2 ms 1372 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 8888 KB Output is correct
2 Correct 12 ms 12216 KB Output is correct
3 Correct 12 ms 11960 KB Output is correct
4 Correct 11 ms 9144 KB Output is correct
5 Correct 19 ms 13492 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 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 0 ms 348 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 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 0 ms 604 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 3 ms 1368 KB Output is correct
17 Correct 2 ms 1372 KB Output is correct
18 Correct 2 ms 1628 KB Output is correct
19 Correct 2 ms 1372 KB Output is correct
20 Correct 2 ms 1372 KB Output is correct
21 Correct 11 ms 8888 KB Output is correct
22 Correct 12 ms 12216 KB Output is correct
23 Correct 12 ms 11960 KB Output is correct
24 Correct 11 ms 9144 KB Output is correct
25 Correct 19 ms 13492 KB Output is correct
26 Correct 10 ms 5588 KB Output is correct
27 Correct 9 ms 4884 KB Output is correct
28 Correct 9 ms 4100 KB Output is correct
29 Correct 8 ms 4048 KB Output is correct
30 Correct 9 ms 6352 KB Output is correct