oj.uz

Submission #621201

# Submission time Handle Problem Language Result Execution time Memory
621201 2022-08-03T14:17:21 Z srivatsav_kannan Collecting Mushrooms (NOI18_collectmushrooms) C++14
38 / 100
 41 ms 9076 KB 
#include <iostream>
#include <iomanip>
#include <array>
#include <fstream>
#include <vector>
#include <set>
#include <queue>
#include <cmath>
#include <map>
#include <algorithm>
#include <numeric>
#include <stack>
#include <cstring>
#include <bitset>
#include <climits>
#include <valarray>
#include <list>
#include <functional>
#include <unordered_map>
#define int long long int
#define inf 100000000000
#define endl '\n'
#define mod 998244353
using namespace std;
signed main(){
    int r,c,d,k; cin >> r >> c >> d >> k;
    char a[r+1][c+1];
    int pre[r+1][c+1];
    for (int i = 1; i <= r; i++){
        for (int j = 1; j <= c; j++){
            cin >> a[i][j];
            pre[i][j] = 0;
        }
    }
    for (int i = 0; i <= r; i++){
        for (int j = 0; j <= c; j++) pre[i][j] = 0;
    }
    for (int i = 1; i <= r; i++){
        for (int j = 1; j <= c; j++){
            pre[i][j] = pre[i-1][j]+pre[i][j-1]-pre[i-1][j-1]+(a[i][j] == 'S');
        }
    }
    int cnt = 0;
    for (int i = 1; i <= r; i++){
        for (int j = 1; j <= c; j++){
            if (a[i][j] != 'M') continue;
            int u = max(i-d,1LL);
            int v = max(j-d, 1LL);
            int w = min(i+d, r);
            int x = min(j+d, c);
            int cur = pre[w][x]-pre[u-1][w]-pre[w][v-1]+pre[u-1][v-1];
            if (cur >= k) cnt++;
        }
    }
    cout << cnt << endl;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 2032 KB Output is correct
2 Incorrect 14 ms 2092 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 9064 KB Output is correct
2 Correct 37 ms 8976 KB Output is correct
3 Correct 40 ms 9076 KB Output is correct
4 Correct 41 ms 9076 KB Output is correct
5 Correct 41 ms 9044 KB Output is correct

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Incorrect 1 ms 212 KB Output isn't correct
12 Halted 0 ms 0 KB -