Submission #259790

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
259790	2020-08-08T14:41:31 Z	minhcool	Cultivation (JOI17_cultivation)	C++17	5 / 100	2000 ms	512 KB

cultivation

#include<bits/stdc++.h>
using namespace std;
 
#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, s[i] + down) + 1][max(1, e[i] - left)]--;
		pref[max(1, s[i] - up)][min(c, e[i] + right) + 1]--;
		pref[min(r, s[i] + down) + 1][min(c, 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;
}
 
void mini(int &a, int b){
	a = ((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)) 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	1 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	0 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	1 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	1 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	0 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	1 ms	384 KB	Output is correct
16	Correct	0 ms	384 KB	Output is correct
17	Correct	11 ms	384 KB	Output is correct
18	Correct	133 ms	392 KB	Output is correct
19	Correct	869 ms	384 KB	Output is correct
20	Correct	38 ms	384 KB	Output is correct
21	Correct	772 ms	384 KB	Output is correct
22	Correct	1537 ms	388 KB	Output is correct
23	Correct	1516 ms	384 KB	Output is correct
24	Correct	1623 ms	504 KB	Output is correct
25	Correct	1651 ms	504 KB	Output is correct
26	Execution timed out	2050 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	1 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	0 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	1 ms	384 KB	Output is correct
16	Correct	0 ms	384 KB	Output is correct
17	Correct	11 ms	384 KB	Output is correct
18	Correct	133 ms	392 KB	Output is correct
19	Correct	869 ms	384 KB	Output is correct
20	Correct	38 ms	384 KB	Output is correct
21	Correct	772 ms	384 KB	Output is correct
22	Correct	1537 ms	388 KB	Output is correct
23	Correct	1516 ms	384 KB	Output is correct
24	Correct	1623 ms	504 KB	Output is correct
25	Correct	1651 ms	504 KB	Output is correct
26	Execution timed out	2050 ms	384 KB	Time limit exceeded
27	Halted	0 ms	0 KB	-

Subtask #4
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	1 ms	512 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Runtime error	1 ms	512 KB	Execution killed with signal 11 (could be triggered by violating memory limits)
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	1 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	0 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	1 ms	384 KB	Output is correct
16	Correct	0 ms	384 KB	Output is correct
17	Correct	11 ms	384 KB	Output is correct
18	Correct	133 ms	392 KB	Output is correct
19	Correct	869 ms	384 KB	Output is correct
20	Correct	38 ms	384 KB	Output is correct
21	Correct	772 ms	384 KB	Output is correct
22	Correct	1537 ms	388 KB	Output is correct
23	Correct	1516 ms	384 KB	Output is correct
24	Correct	1623 ms	504 KB	Output is correct
25	Correct	1651 ms	504 KB	Output is correct
26	Execution timed out	2050 ms	384 KB	Time limit exceeded
27	Halted	0 ms	0 KB	-

Submission #259790

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 0 / 10.0

Subtask #3 0 / 15.0

Subtask #4 0 / 30.0

Subtask #5 0 / 20.0

Subtask #6 0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
0 / 10.0

Subtask #3
0 / 15.0

Subtask #4
0 / 30.0

Subtask #5
0 / 20.0

Subtask #6
0 / 20.0