oj.uz

Submission #259787

# Submission time Handle Problem Language Result Execution time Memory
259787 2020-08-08T14:34:17 Z minhcool Cultivation (JOI17_cultivation) C++17
5 / 100
 2000 ms 512 KB 
#include<bits/stdc++.h>
using namespace std;
 
#define int short int
#define fi first
#define se second
#define pb push_back
#define ins insert
#define er erase
 
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
int n, r, c, s[305], e[305], pref[45][45], ans = 10005;
 
bool ck(int up, int left, int down, int right){
	for(int i = 1; i <= r; i++){
		for(int j = 1; j <= c; j++) pref[i][j] = 0;
	}
	for(int i = 1; i <= n; i++){
		pref[max(1, s[i] - up)][max(1, e[i] - left)]++;
		pref[min(r + 1, s[i] + down + 1)][max(1, e[i] - left)]--;
		pref[max(1, s[i] - up)][min(c + 1, e[i] + right + 1)]--;
		pref[min(r + 1, s[i] + down + 1)][min(c + 1, e[i] + right + 1)]++;
		//cout << max(1, s[i] - up) << " " << max(1, e[i] - left) << " " << min(r + 1, s[i] + down + 1) << " " << min(c + 1, e[i] + right) << "\n";
	}
	for(int i = 1; i <= r; i++){
		for(int j = 1; j <= c; j++) pref[i][j] += pref[i][j - 1];
	}
	for(int i = 1; i <= r; i++){
		for(int j = 1; j <= c; j++){
			pref[i][j] += pref[i - 1][j];
			if(!pref[i][j]) return 0;
		}
	}
	return 1;
}
 
int mini(int a, int b){
	return ((a < b) ? a : b);
}
 
signed main(){
	//freopen("cultivation.inp", "r", stdin);
	//freopen("cultivation.out", "w", stdout);
	ios_base::sync_with_stdio(0);
	cin >> r >> c >> n;
	for(int i = 1; i <= n; i++) cin >> s[i] >> e[i];
	//cout << ck(0, 1, 2, 2) << "\n";
	for(int i = 0; i < r; i++){
		for(int j = 0; j < c; j++){
			int itr = 2 * c - j - 1, temp = i + j - 1;
			for(int k = 0; k <= (2 * r - 1 - i); k++){
				while(itr >= 0 && ck(i, j, k, itr)) --itr;
				++itr;
				++temp;
				//cout << i << " " << j << " " << k << " " << itr << " " << temp + itr << "\n";
				if(ck(i, j, k, itr)) ans = mini(ans, temp + itr);
			}
		}
	}
	cout << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 388 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 388 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 22 ms 288 KB Output is correct
18 Correct 227 ms 384 KB Output is correct
19 Correct 1581 ms 388 KB Output is correct
20 Correct 64 ms 384 KB Output is correct
21 Correct 1334 ms 388 KB Output is correct
22 Execution timed out 2080 ms 384 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 388 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 22 ms 288 KB Output is correct
18 Correct 227 ms 384 KB Output is correct
19 Correct 1581 ms 388 KB Output is correct
20 Correct 64 ms 384 KB Output is correct
21 Correct 1334 ms 388 KB Output is correct
22 Execution timed out 2080 ms 384 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 384 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 388 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 22 ms 288 KB Output is correct
18 Correct 227 ms 384 KB Output is correct
19 Correct 1581 ms 388 KB Output is correct
20 Correct 64 ms 384 KB Output is correct
21 Correct 1334 ms 388 KB Output is correct
22 Execution timed out 2080 ms 384 KB Time limit exceeded
23 Halted 0 ms 0 KB -