oj.uz

Submission #1006092

# Submission time Handle Problem Language Result Execution time Memory
1006092 2024-06-23T11:34:26 Z devariaota Collecting Mushrooms (NOI18_collectmushrooms) C++17
100 / 100
 38 ms 35784 KB 
#include<bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;
signed main()
{
  int r, c, d, p, ans=0;
  scanf("%lld %lld %lld %lld", &r, &c, &d, &p);
  char s[r+5][c+5];
  int pref[r+5][c+5];
  vector<pair<int, int> >v;
  memset(pref, 0, sizeof(pref));
  for(int i=1; i<=r; i++)
  {
    for(int j=1; j<=c; j++)
    {
      scanf(" %c", &s[i][j]);
//      printf("%c\n", s[i][j]);
      if(s[i][j]=='M')
      {
        v.push_back({i, j});
      }
      if(s[i][j]=='S')pref[i][j]++;
      pref[i][j]+=(pref[i-1][j]+pref[i][j-1]);
      pref[i][j]-=pref[i-1][j-1];
    }
  }
//  for(int i=1; i<=r; i++)
//  {
//    for(int j=1; j<=c; j++)
//    {
//      printf("%d ", pref[i][j]);
//    }
//    printf("\n");
//  }
  for(int i=0; i<v.size(); i++)
  {
//    printf("%lld\n", pref[min(r, v[i].fi+d)][min(c, v[i].se+d)]-pref[max(0ll, v[i].fi-d-1)][min(c, v[i].se+d)]-pref[min(r, v[i].fi+d)][max(0ll, v[i].se-d-1)]+pref[max(0ll, v[i].fi-d-1)][max(0ll, v[i].se-d-1)]);
    if(pref[min(r, v[i].fi+d)][min(c, v[i].se+d)]-pref[max(0ll, v[i].fi-d-1)][min(c, v[i].se+d)]-pref[min(r, v[i].fi+d)][max(0ll, v[i].se-d-1)]+pref[max(0ll, v[i].fi-d-1)][max(0ll, v[i].se-d-1)]>=p)
    {
      ans++;
    }
  }
  printf("%lld\n", ans);
}

Compilation message

mushrooms.cpp: In function 'int main()':
mushrooms.cpp:37:17: 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]
   37 |   for(int i=0; i<v.size(); i++)
      |                ~^~~~~~~~~
mushrooms.cpp:9:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |   scanf("%lld %lld %lld %lld", &r, &c, &d, &p);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mushrooms.cpp:18:12: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |       scanf(" %c", &s[i][j]);
      |       ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 1 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 1 ms 604 KB Output is correct
3 Correct 1 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 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 860 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 604 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2140 KB Output is correct
2 Correct 7 ms 2140 KB Output is correct
3 Correct 9 ms 2652 KB Output is correct
4 Correct 7 ms 2140 KB Output is correct
5 Correct 8 ms 2396 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 31164 KB Output is correct
2 Correct 36 ms 35272 KB Output is correct
3 Correct 38 ms 35228 KB Output is correct
4 Correct 35 ms 32376 KB Output is correct
5 Correct 37 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 1 ms 604 KB Output is correct
3 Correct 1 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 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 860 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 7 ms 2140 KB Output is correct
17 Correct 7 ms 2140 KB Output is correct
18 Correct 9 ms 2652 KB Output is correct
19 Correct 7 ms 2140 KB Output is correct
20 Correct 8 ms 2396 KB Output is correct
21 Correct 35 ms 31164 KB Output is correct
22 Correct 36 ms 35272 KB Output is correct
23 Correct 38 ms 35228 KB Output is correct
24 Correct 35 ms 32376 KB Output is correct
25 Correct 37 ms 35784 KB Output is correct
26 Correct 21 ms 7888 KB Output is correct
27 Correct 23 ms 10832 KB Output is correct
28 Correct 20 ms 7376 KB Output is correct
29 Correct 19 ms 7376 KB Output is correct
30 Correct 19 ms 10620 KB Output is correct