oj.uz

Submission #1037532

# Submission time Handle Problem Language Result Execution time Memory
1037532 2024-07-29T03:25:26 Z vannnnnnnn Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 43 ms 37056 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 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 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 1 ms 348 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 0 ms 344 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 7 ms 2396 KB Output is correct
2 Correct 7 ms 2372 KB Output is correct
3 Correct 9 ms 2788 KB Output is correct
4 Correct 7 ms 2496 KB Output is correct
5 Correct 13 ms 2904 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 32708 KB Output is correct
2 Correct 33 ms 35516 KB Output is correct
3 Correct 43 ms 35776 KB Output is correct
4 Correct 31 ms 33228 KB Output is correct
5 Correct 35 ms 37056 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 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 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 1 ms 348 KB Output is correct
13 Correct 1 ms 1112 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 7 ms 2396 KB Output is correct
17 Correct 7 ms 2372 KB Output is correct
18 Correct 9 ms 2788 KB Output is correct
19 Correct 7 ms 2496 KB Output is correct
20 Correct 13 ms 2904 KB Output is correct
21 Correct 32 ms 32708 KB Output is correct
22 Correct 33 ms 35516 KB Output is correct
23 Correct 43 ms 35776 KB Output is correct
24 Correct 31 ms 33228 KB Output is correct
25 Correct 35 ms 37056 KB Output is correct
26 Correct 25 ms 8140 KB Output is correct
27 Correct 27 ms 10700 KB Output is correct
28 Correct 21 ms 7884 KB Output is correct
29 Correct 23 ms 7888 KB Output is correct
30 Correct 22 ms 11072 KB Output is correct