oj.uz

Submission #163208

# Submission time Handle Problem Language Result Execution time Memory
163208 2019-11-11T18:19:49 Z aggu_01000101 Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 52 ms 5752 KB 
#include <iostream>
#include <algorithm>
#include <iomanip>
#include <vector>
#define double long double
using namespace std;
int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int r, c, d, k;
    cin>>r>>c>>d>>k;
    int arr[r+1][c+1];
    bool mush[r+1][c+1];
    for(int i = 0;i<=r;i++){
        for(int j = 0;j<=c;j++){
            arr[i][j] = 0;
            mush[i][j] = false;
        }
    }
    for(int i = 0;i<r;i++){
        for(int j = 0;j<c;j++){
            char s;
            cin>>s;
            if(s=='M') mush[i][j] = true;
            else if(s=='S'){
                int bottom = max(0, i-d);
                int left = max(0, j-d);
                int right = min(c-1, j+d);
                int top = min(r-1, i+d);
                //cout<<"("<<i<<", "<<j<<") "<<bottom<<left<<right<<top<<endl;
                arr[bottom][left]++;
                arr[bottom][right+1]--;
                arr[top+1][left]--;
                arr[top+1][right+1]++;
            }
        }
    }

    for(int i = 1;i<=r;i++){
        arr[i][0]+=arr[i-1][0];
    }
    for(int i = 1;i<=c;i++){
        arr[0][i]+=arr[0][i-1];
    }
    for(int i = 1;i<=r;i++){
        for(int j = 1;j<=c;j++){
            arr[i][j]-=arr[i-1][j-1];
            arr[i][j]+=arr[i-1][j];
            arr[i][j]+=arr[i][j-1];
        }
    }
    int cnt = 0;
    for(int i = 0;i<r;i++){
        for(int j = 0;j<c;j++){
            if(arr[i][j]>=k && mush[i][j]) cnt++;
        }
    }
    cout<<cnt<<endl;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1532 KB Output is correct
2 Correct 8 ms 1528 KB Output is correct
3 Correct 8 ms 1784 KB Output is correct
4 Correct 9 ms 1528 KB Output is correct
5 Correct 7 ms 1656 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 5752 KB Output is correct
2 Correct 19 ms 5752 KB Output is correct
3 Correct 20 ms 5752 KB Output is correct
4 Correct 23 ms 5752 KB Output is correct
5 Correct 21 ms 5752 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 7 ms 1532 KB Output is correct
17 Correct 8 ms 1528 KB Output is correct
18 Correct 8 ms 1784 KB Output is correct
19 Correct 9 ms 1528 KB Output is correct
20 Correct 7 ms 1656 KB Output is correct
21 Correct 52 ms 5752 KB Output is correct
22 Correct 19 ms 5752 KB Output is correct
23 Correct 20 ms 5752 KB Output is correct
24 Correct 23 ms 5752 KB Output is correct
25 Correct 21 ms 5752 KB Output is correct
26 Correct 18 ms 3320 KB Output is correct
27 Correct 17 ms 3320 KB Output is correct
28 Correct 18 ms 3320 KB Output is correct
29 Correct 17 ms 3320 KB Output is correct
30 Correct 17 ms 3320 KB Output is correct