oj.uz

Submission #586477

# Submission time Handle Problem Language Result Execution time Memory
586477 2022-06-30T10:14:40 Z M_W Collecting Mushrooms (NOI18_collectmushrooms) C++17
38 / 100
 9 ms 7260 KB 
#include <bits/stdc++.h>
#define ii pair<int, int>
using namespace std;
vector<vector<int>> v;
int ans = 0;
queue<ii> q;
int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	int N, M, D, K;
	cin >> N >> M >> D >> K;
	int rd = D * 2 + 1;
	for(int i = 0; i < N; i++){
		string line;
		cin >> line;
		vector<int> tmp;
		for(int j = 0; j < M; j++){
			int qsl = j == 0 ? 0 : tmp[j - 1];
			int qsu = i == 0 ? 0 : v[i - 1][j];
			int qslu = (i == 0 || j == 0) ? 0 : v[i - 1][j - 1];
			
			tmp.push_back(qsl + qsu - qslu + (line[j] == 'S' ? 1 : 0));
			if(line[j] == 'M') q.push({i + D, j + D});
			while(!q.empty() && min(q.front().first, N - 1) == i && min(q.front().second, M - 1) == j){
				auto [ni, nj] = q.front();
				
				int qsu2 = ni - rd < 0 ? 0 : v[ni - rd][j]; 
				int qsl2 = nj - rd < 0 ? 0 : tmp[nj - rd];
				int qslu2 = (ni - rd < 0 || nj - rd < 0) ? 0 : v[ni - rd][nj - rd];
				
				if(tmp[j] - qsl2 - qsu2 + qslu2 >= K) ans++;
				// printf(">> %d %d : %d\n", i - rd, j - rd, tmp[j] - qsl2 - qsu2 + qslu2 >= K);
				q.pop();
			}
		}
		v.push_back(tmp);
	}
	cout << ans;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 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 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 320 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1236 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 6416 KB Output is correct
2 Correct 9 ms 5460 KB Output is correct
3 Correct 9 ms 7260 KB Output is correct
4 Correct 9 ms 5688 KB Output is correct
5 Correct 9 ms 7012 KB Output is correct

Subtask #6
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 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 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 320 KB Output isn't correct
12 Halted 0 ms 0 KB -