oj.uz

Submission #522714

# Submission time Handle Problem Language Result Execution time Memory
522714 2022-02-05T14:02:01 Z nhphucqt Collecting Mushrooms (NOI18_collectmushrooms) C++17
100 / 100
 30 ms 39024 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 5e5+7;
int numRow, numCol, maxDist, minNum;
vector<int> a[N];
string s[N];

int main() {
	cin.tie(nullptr)->sync_with_stdio(false);
	#ifdef NHPHUCQT
	freopen("demo.inp", "r", stdin);
	freopen("demo.out", "w", stdout);
	#endif // NHPHUCQT

	cin >> numRow >> numCol >> maxDist >> minNum;
	for (int i = 0; i <= numRow+3; ++i) {
		a[i].resize(numCol+3, 0);
	}
	for (int i = 1; i <= numRow; ++i) {
		cin >> s[i];
		s[i] = '0' + s[i];
	}
	for (int i = 1; i <= numRow; ++i)
	for (int j = 1; j <= numCol; ++j) {
		// s[i][j]
		if (s[i][j] == 'S') {
			int x = max(1, i - maxDist);
			int y = max(1, j - maxDist);
			int u = min(numRow, i + maxDist);
			int v = min(numCol, j + maxDist);
			a[x][y]++;
			a[x][v+1]--;
			a[u+1][y]--;
			a[u+1][v+1]++;
		}
	}
	for (int i = 1; i <= numRow; ++i)
	for (int j = 1; j <= numCol; ++j) {
		a[i][j] += a[i][j-1];
	}
	for (int j = 1; j <= numCol; ++j)
	for (int i = 1; i <= numRow; ++i) {
		a[i][j] += a[i-1][j];
	}
	int res = 0;
	for (int i = 1; i <= numRow; ++i)
	for (int j = 1; j <= numCol; ++j) {
		if (s[i][j] == 'M') {
			res += a[i][j] >= minNum;
		}
	}
	cout << res;
	return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27596 KB Output is correct
2 Correct 16 ms 27708 KB Output is correct
3 Correct 16 ms 27724 KB Output is correct
4 Correct 15 ms 27596 KB Output is correct
5 Correct 13 ms 27724 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27596 KB Output is correct
2 Correct 16 ms 27708 KB Output is correct
3 Correct 16 ms 27724 KB Output is correct
4 Correct 15 ms 27596 KB Output is correct
5 Correct 13 ms 27724 KB Output is correct
6 Correct 13 ms 27648 KB Output is correct
7 Correct 13 ms 27596 KB Output is correct
8 Correct 14 ms 27668 KB Output is correct
9 Correct 15 ms 27724 KB Output is correct
10 Correct 12 ms 27708 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27608 KB Output is correct
2 Correct 14 ms 27720 KB Output is correct
3 Correct 17 ms 27768 KB Output is correct
4 Correct 14 ms 27596 KB Output is correct
5 Correct 18 ms 27684 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 28872 KB Output is correct
2 Correct 15 ms 28876 KB Output is correct
3 Correct 15 ms 29132 KB Output is correct
4 Correct 17 ms 28960 KB Output is correct
5 Correct 17 ms 29056 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 39008 KB Output is correct
2 Correct 30 ms 38988 KB Output is correct
3 Correct 29 ms 39008 KB Output is correct
4 Correct 27 ms 39020 KB Output is correct
5 Correct 25 ms 39024 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 27596 KB Output is correct
2 Correct 16 ms 27708 KB Output is correct
3 Correct 16 ms 27724 KB Output is correct
4 Correct 15 ms 27596 KB Output is correct
5 Correct 13 ms 27724 KB Output is correct
6 Correct 13 ms 27648 KB Output is correct
7 Correct 13 ms 27596 KB Output is correct
8 Correct 14 ms 27668 KB Output is correct
9 Correct 15 ms 27724 KB Output is correct
10 Correct 12 ms 27708 KB Output is correct
11 Correct 13 ms 27608 KB Output is correct
12 Correct 14 ms 27720 KB Output is correct
13 Correct 17 ms 27768 KB Output is correct
14 Correct 14 ms 27596 KB Output is correct
15 Correct 18 ms 27684 KB Output is correct
16 Correct 16 ms 28872 KB Output is correct
17 Correct 15 ms 28876 KB Output is correct
18 Correct 15 ms 29132 KB Output is correct
19 Correct 17 ms 28960 KB Output is correct
20 Correct 17 ms 29056 KB Output is correct
21 Correct 26 ms 39008 KB Output is correct
22 Correct 30 ms 38988 KB Output is correct
23 Correct 29 ms 39008 KB Output is correct
24 Correct 27 ms 39020 KB Output is correct
25 Correct 25 ms 39024 KB Output is correct
26 Correct 26 ms 32048 KB Output is correct
27 Correct 20 ms 30652 KB Output is correct
28 Correct 21 ms 30888 KB Output is correct
29 Correct 23 ms 30832 KB Output is correct
30 Correct 26 ms 31208 KB Output is correct