oj.uz

Submission #594511

# Submission time Handle Problem Language Result Execution time Memory
594511 2022-07-12T15:15:06 Z propransh Collecting Mushrooms (NOI18_collectmushrooms) C++14
100 / 100
 22 ms 9616 KB 
#include <bits/stdc++.h>
using namespace std;
#define boost  ios_base::sync_with_stdio(0);
#define ll int
#define pb push_back
#define tc long long int t; cin >> t; while(t--)
#define vpll vector<pair<ll,ll>>
#define MOD 1000000007

int main(){
	
	boost;
	ll i;
	ll r,c,d,k;
	cin >> r >> c >> d >> k;
	char a[r+1][c+1];
	ll diff[r+1][c+1];
	ll pre[r+1][c+1];
	ll j;
	for(i = 1; i <= r; i++){
		for(j = 1; j <= c; j++){
			cin >> a[i][j];
			if(a[i][j] == 'S'){
				diff[i][j] = 1;
			}
			else{
				diff[i][j] = 0;
			}
		}
	}
	for(i= 0 ; i<= r; i++){
		for(j = 0; j <= c; j++){
			pre[i][j] = 0;
		}
	}
	/*for(i = 0; i <= r; i++){
		diff[i][0] = 0;
	}
	for(j = 0; j <= c; j++){
		diff[0][j] = 0;
	}
	pre[1][1] = diff[1][1];
	for(i = 1; i <= r; i++){
		pre[i][0] = pre[i-1][0] + diff[i][0]; 
	}
	for(i = 1; i < c; i++){
		pre[0][i] = pre[0][i-1] + diff[0][i];
	}*/
	for(i = 1; i <= r; i++){
		for(j = 1; j <= c; j++){
			pre[i][j] = (diff[i][j] + pre[i-1][j] + pre[i][j-1]) - pre[i-1][j-1];
			//cout << "1" <<endl;
		}
	}
	ll u,v,x,y, ans = 0;;
	/*for(i = 0; i < r; i++){
		for(j = 0; j < c; j++){
			cout << pre[i][j] << " ";
		}
		cout << endl;
	}*/
	for(i = 1; i <= r; i++){
		for(j = 1; j <= c; j++){
			if(a[i][j] == 'M'){
				u = max(1,i-d);
				v = max(1,j-d);
				x = min(r, i+d);
				y = min(c, j+d);

				ll temp = pre[x][y] - pre[u-1][y] - pre[x][v-1] + pre[u-1][v-1];
				if(temp >= k){
					ans++;
					//cout << "i " << i << " j " << j <<endl;
				}
			}
			//cout << "1" << endl; 
		}
	}
	cout << ans <<endl;
	return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 232 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 232 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 316 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 320 KB Output is correct
5 Correct 0 ms 340 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 2132 KB Output is correct
2 Correct 8 ms 2260 KB Output is correct
3 Correct 7 ms 2656 KB Output is correct
4 Correct 6 ms 2240 KB Output is correct
5 Correct 8 ms 2388 KB Output is correct

Subtask #5
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 9484 KB Output is correct
2 Correct 17 ms 9492 KB Output is correct
3 Correct 15 ms 9556 KB Output is correct
4 Correct 17 ms 9616 KB Output is correct
5 Correct 18 ms 9616 KB Output is correct

Subtask #6
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 232 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 316 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 316 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 320 KB Output is correct
15 Correct 0 ms 340 KB Output is correct
16 Correct 5 ms 2132 KB Output is correct
17 Correct 8 ms 2260 KB Output is correct
18 Correct 7 ms 2656 KB Output is correct
19 Correct 6 ms 2240 KB Output is correct
20 Correct 8 ms 2388 KB Output is correct
21 Correct 22 ms 9484 KB Output is correct
22 Correct 17 ms 9492 KB Output is correct
23 Correct 15 ms 9556 KB Output is correct
24 Correct 17 ms 9616 KB Output is correct
25 Correct 18 ms 9616 KB Output is correct
26 Correct 14 ms 5232 KB Output is correct
27 Correct 14 ms 5196 KB Output is correct
28 Correct 16 ms 5256 KB Output is correct
29 Correct 17 ms 5148 KB Output is correct
30 Correct 14 ms 5244 KB Output is correct