oj.uz

Submission #1005982

# Submission time Handle Problem Language Result Execution time Memory
1005982 2024-06-23T09:57:17 Z makanhulia Collecting Mushrooms (NOI18_collectmushrooms) C++17
100 / 100
 26 ms 36048 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
int r, c, d, s, jum;
vector<pair<int, int>> v;
signed main() {
  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
  cin >> r >> c >> d >> s;
  char arr[r + 5][c + 5];
  int pref[r + 5][c + 5];
  for(int i = 1; i <= r; i++) {
    for(int j = 1; j <= c; j++) {
      cin >> arr[i][j];
      if(arr[i][j] == 'M') {
        v.push_back({i, j});
      }
    }
  }
  for(int i = 1; i <= r; i++) {
    for(int j = 1; j <= c; j++) {
      if(arr[i][j] == 'S') {
        pref[i][j] = pref[i][j - 1] + pref[i - 1][j] - pref[i - 1][j - 1] + 1;
      } else {
        pref[i][j] = pref[i][j - 1] + pref[i - 1][j] - pref[i - 1][j - 1];
      }
    }
  }
  for(int i = 0; i < v.size(); i++) {
    int a = v[i].first, b = v[i].second;
    int lr, lc, hr, hc;
    lr = max(0ll, a - d - 1);
    lc = max(0ll, b - d - 1);
    hr = min(r, a + d);
    hc = min(c, b + d);
    int funi = pref[hr][hc] - pref[lr][hc] - pref[hr][lc] + pref[lr][lc];
    if(funi >= s) {
      jum++;
    }
  }
  cout << jum << "\n";
  
}

Compilation message

mushrooms.cpp: In function 'int main()':
mushrooms.cpp:28:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |   for(int i = 0; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~

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 604 KB Output is correct
3 Correct 0 ms 604 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 604 KB Output is correct
3 Correct 0 ms 604 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 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 0 ms 860 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 716 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2140 KB Output is correct
2 Correct 3 ms 2288 KB Output is correct
3 Correct 4 ms 2652 KB Output is correct
4 Correct 3 ms 2304 KB Output is correct
5 Correct 4 ms 2396 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 31388 KB Output is correct
2 Correct 25 ms 35832 KB Output is correct
3 Correct 24 ms 36048 KB Output is correct
4 Correct 23 ms 32980 KB Output is correct
5 Correct 26 ms 35784 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 604 KB Output is correct
3 Correct 0 ms 604 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 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 0 ms 860 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 716 KB Output is correct
16 Correct 4 ms 2140 KB Output is correct
17 Correct 3 ms 2288 KB Output is correct
18 Correct 4 ms 2652 KB Output is correct
19 Correct 3 ms 2304 KB Output is correct
20 Correct 4 ms 2396 KB Output is correct
21 Correct 22 ms 31388 KB Output is correct
22 Correct 25 ms 35832 KB Output is correct
23 Correct 24 ms 36048 KB Output is correct
24 Correct 23 ms 32980 KB Output is correct
25 Correct 26 ms 35784 KB Output is correct
26 Correct 11 ms 7892 KB Output is correct
27 Correct 12 ms 10708 KB Output is correct
28 Correct 10 ms 7384 KB Output is correct
29 Correct 10 ms 7384 KB Output is correct
30 Correct 13 ms 11592 KB Output is correct