oj.uz

Submission #259788

# Submission time Handle Problem Language Result Execution time Memory
259788 2020-08-08T14:35:10 Z minhcool Cultivation (JOI17_cultivation) C++17
5 / 100
 2000 ms 504 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 = c - 1, temp = i + j - 1;
			for(int k = 0; k <= r - 1; 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 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 14 ms 384 KB Output is correct
18 Correct 154 ms 384 KB Output is correct
19 Correct 1065 ms 504 KB Output is correct
20 Correct 43 ms 384 KB Output is correct
21 Correct 847 ms 388 KB Output is correct
22 Correct 1743 ms 504 KB Output is correct
23 Correct 1737 ms 504 KB Output is correct
24 Correct 1799 ms 504 KB Output is correct
25 Correct 1826 ms 504 KB Output is correct
26 Execution timed out 2051 ms 384 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 14 ms 384 KB Output is correct
18 Correct 154 ms 384 KB Output is correct
19 Correct 1065 ms 504 KB Output is correct
20 Correct 43 ms 384 KB Output is correct
21 Correct 847 ms 388 KB Output is correct
22 Correct 1743 ms 504 KB Output is correct
23 Correct 1737 ms 504 KB Output is correct
24 Correct 1799 ms 504 KB Output is correct
25 Correct 1826 ms 504 KB Output is correct
26 Execution timed out 2051 ms 384 KB Time limit exceeded
27 Halted 0 ms 0 KB -

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 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 0 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 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 14 ms 384 KB Output is correct
18 Correct 154 ms 384 KB Output is correct
19 Correct 1065 ms 504 KB Output is correct
20 Correct 43 ms 384 KB Output is correct
21 Correct 847 ms 388 KB Output is correct
22 Correct 1743 ms 504 KB Output is correct
23 Correct 1737 ms 504 KB Output is correct
24 Correct 1799 ms 504 KB Output is correct
25 Correct 1826 ms 504 KB Output is correct
26 Execution timed out 2051 ms 384 KB Time limit exceeded
27 Halted 0 ms 0 KB -