oj.uz

Submission #1106698

# Submission time Handle Problem Language Result Execution time Memory
1106698 2024-10-30T22:11:11 Z vjudge1 Collecting Mushrooms (NOI18_collectmushrooms) C++14
38 / 100
 14 ms 10964 KB 
#include <bits/stdc++.h>
#define sts(v) svble_sort(v.BE, v.E)
#define Rsts(v) svble_sort(v.rBE, v.rE)
#define rev(v) reverse(v.BE, v.E)
#define BE begin()
#define rBE rbegin()
#define E end()
#define rE rend()
#define pb push_back
#define ppb pop_back()
#define pf push_front
#define ppf pop_front()
#define F first
#define S second

using namespace std;
using ll = long long;

const int MAXN = 1e5 + 1;
const int MOD = 1e9 + 7;

int n, m, D, K;
vector<vector<int>> v;

int new_cord(int a, int b){
    if(a < 1 or a > (int)v.size() or b < 1 or b > (int)v[1].size())return 0;
    return v[a][b];
}

int main(){
    ios_base::sync_with_stdio(0); 
    cin.tie(0); cout.tie(0);

    cin >> n >> m >> D >> K;
    vector<pair<int,int>> mushroom;
    v.resize(n + 1);
    for(int i = 0; i < (int)v.size(); i++)
        v[i].resize(m + 1);

    for(int i = 1; i <= n; i++)
        for(int j = 1; j <= m; j++){
            char c; cin >> c;

            if(c == 'S')v[i][j] = 1;
            else if(c == 'M')mushroom.pb({i, j});
        }

    for(int i = 1; i <= n; i++)
        for(int j = 1; j <= m; j++)
            v[i][j] = v[i - 1][j] + v[i][j - 1] - v[i - 1][j - 1] + v[i][j];
    
    int cnt = 0;
    for(int j = 0; j < mushroom.size(); j++){
        pair<int, int>  i = mushroom[j];
        int cor1 = v[min(n, i.F + D)][min(m, i.S + D)], cor2 = v[max(0, i.F - D - 1)][max(0, i.S - D - 1)],
            cor3 = v[min(n, i.F + D)][max(0, i.S - D - 1)], cor4 = v[max(0, i.F - D - 1)][min(n, i.S + D)];
        
        if(K <= cor1 + cor2 - cor3 - cor4)cnt++;
    }

    cout << cnt << '\n';

    return 0;
}

Compilation message

mushrooms.cpp: In function 'int main()':
mushrooms.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     for(int j = 0; j < mushroom.size(); j++){
      |                    ~~^~~~~~~~~~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 592 KB Output is correct
4 Incorrect 1 ms 336 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1104 KB Output is correct
2 Incorrect 3 ms 1104 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 12 ms 7884 KB Output is correct
2 Correct 14 ms 10952 KB Output is correct
3 Correct 13 ms 10964 KB Output is correct
4 Correct 12 ms 7884 KB Output is correct
5 Correct 13 ms 10952 KB Output is correct

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 592 KB Output is correct
14 Incorrect 1 ms 336 KB Output isn't correct
15 Halted 0 ms 0 KB -