답안 #378543

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
378543	2021-03-17T01:39:11 Z	8e7	Chessboard (IZhO18_chessboard)	C++14	70 / 100	204 ms	2664 KB

chessboard

//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
#define ll long long
#define maxn 100005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
using namespace std;
struct rect{
	int x1, y1, x2, y2;
	rect() {
		x1 = 0, y1 = 0, x2 = 0, y2 = 0;
	}
	rect(int a, int b, int c, int d) {
		x1 = a, y1 = b, x2 = c, y2 = d;
	}
};
vector<rect> v;

ll solve(ll n, ll len) {
	ll val = 0, block = n / len;
	for (int i = 0;i < block;i++) {
		val += len * len * (block / 2 + (block % 2 && i % 2 ? 1 : 0));
	}
	for (rect a:v) {
		val += (a.x1 / len + a.y1 / len) % 2 ? -1 : 1;
	}
	val = min(val, n * n - val);
	//cout << len << " " << val << endl;
	return val;
}
int main() {
	io
	ll n, k;
	cin >> n >> k;
	for (int i = 0;i < k;i++) {
		ll x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		x1--, y1--, x2--, y2--;
		v.push_back(rect(x1, y1, x2, y2));
	}
	ll ans = 1LL<<60;
	for (ll i = 1;i * i <= n;i++) {
		if (n % i == 0) {
			ans = min(ans, solve(n, i));
			if (i * i != n && i != 1) {
				ans = min(ans, solve(n, n / i));
			}
		}
	}
	cout << ans << endl;
}
/*
2 0

6 8
3 3 3 3
1 2 1 2
3 4 3 4
5 5 5 5
4 3 4 3
4 4 4 4
2 1 2 1
3 6 3 6
 */

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	1800 KB	Output is correct
2	Correct	7 ms	1008 KB	Output is correct
3	Correct	16 ms	1516 KB	Output is correct
4	Correct	18 ms	1516 KB	Output is correct
5	Correct	22 ms	1516 KB	Output is correct
6	Correct	14 ms	1664 KB	Output is correct
7	Correct	4 ms	620 KB	Output is correct
8	Correct	16 ms	1516 KB	Output is correct
9	Correct	37 ms	2536 KB	Output is correct
10	Correct	20 ms	1672 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	10 ms	1008 KB	Output is correct
17	Correct	29 ms	2536 KB	Output is correct
18	Correct	37 ms	2536 KB	Output is correct
19	Correct	57 ms	2536 KB	Output is correct
20	Correct	64 ms	2536 KB	Output is correct
21	Correct	28 ms	2536 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	18 ms	1516 KB	Output is correct
24	Correct	33 ms	2536 KB	Output is correct
25	Correct	4 ms	748 KB	Output is correct
26	Correct	21 ms	1516 KB	Output is correct
27	Correct	27 ms	2536 KB	Output is correct
28	Correct	38 ms	2536 KB	Output is correct
29	Correct	12 ms	1516 KB	Output is correct
30	Correct	2 ms	492 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	1800 KB	Output is correct
2	Correct	7 ms	1008 KB	Output is correct
3	Correct	16 ms	1516 KB	Output is correct
4	Correct	18 ms	1516 KB	Output is correct
5	Correct	22 ms	1516 KB	Output is correct
6	Correct	14 ms	1664 KB	Output is correct
7	Correct	4 ms	620 KB	Output is correct
8	Correct	16 ms	1516 KB	Output is correct
9	Correct	37 ms	2536 KB	Output is correct
10	Correct	20 ms	1672 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	492 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	10 ms	1008 KB	Output is correct
27	Correct	29 ms	2536 KB	Output is correct
28	Correct	37 ms	2536 KB	Output is correct
29	Correct	57 ms	2536 KB	Output is correct
30	Correct	64 ms	2536 KB	Output is correct
31	Correct	28 ms	2536 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	18 ms	1516 KB	Output is correct
34	Correct	33 ms	2536 KB	Output is correct
35	Correct	4 ms	748 KB	Output is correct
36	Correct	21 ms	1516 KB	Output is correct
37	Correct	27 ms	2536 KB	Output is correct
38	Correct	38 ms	2536 KB	Output is correct
39	Correct	12 ms	1516 KB	Output is correct
40	Correct	2 ms	492 KB	Output is correct
41	Correct	57 ms	2536 KB	Output is correct
42	Correct	39 ms	2536 KB	Output is correct
43	Correct	44 ms	2536 KB	Output is correct
44	Correct	39 ms	2536 KB	Output is correct
45	Correct	39 ms	2536 KB	Output is correct
46	Correct	63 ms	2536 KB	Output is correct
47	Correct	35 ms	2536 KB	Output is correct
48	Correct	42 ms	2536 KB	Output is correct
49	Correct	38 ms	2536 KB	Output is correct
50	Correct	183 ms	2536 KB	Output is correct
51	Correct	195 ms	2536 KB	Output is correct
52	Correct	182 ms	2536 KB	Output is correct
53	Correct	194 ms	2536 KB	Output is correct
54	Correct	182 ms	2536 KB	Output is correct
55	Correct	204 ms	2664 KB	Output is correct
56	Correct	173 ms	2536 KB	Output is correct

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	26 ms	1800 KB	Output is correct
10	Correct	7 ms	1008 KB	Output is correct
11	Correct	16 ms	1516 KB	Output is correct
12	Correct	18 ms	1516 KB	Output is correct
13	Correct	22 ms	1516 KB	Output is correct
14	Correct	14 ms	1664 KB	Output is correct
15	Correct	4 ms	620 KB	Output is correct
16	Correct	16 ms	1516 KB	Output is correct
17	Correct	37 ms	2536 KB	Output is correct
18	Correct	20 ms	1672 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	364 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	10 ms	1008 KB	Output is correct
35	Correct	29 ms	2536 KB	Output is correct
36	Correct	37 ms	2536 KB	Output is correct
37	Correct	57 ms	2536 KB	Output is correct
38	Correct	64 ms	2536 KB	Output is correct
39	Correct	28 ms	2536 KB	Output is correct
40	Correct	1 ms	364 KB	Output is correct
41	Correct	18 ms	1516 KB	Output is correct
42	Correct	33 ms	2536 KB	Output is correct
43	Correct	4 ms	748 KB	Output is correct
44	Correct	21 ms	1516 KB	Output is correct
45	Correct	27 ms	2536 KB	Output is correct
46	Correct	38 ms	2536 KB	Output is correct
47	Correct	12 ms	1516 KB	Output is correct
48	Correct	2 ms	492 KB	Output is correct
49	Correct	57 ms	2536 KB	Output is correct
50	Correct	39 ms	2536 KB	Output is correct
51	Correct	44 ms	2536 KB	Output is correct
52	Correct	39 ms	2536 KB	Output is correct
53	Correct	39 ms	2536 KB	Output is correct
54	Correct	63 ms	2536 KB	Output is correct
55	Correct	35 ms	2536 KB	Output is correct
56	Correct	42 ms	2536 KB	Output is correct
57	Correct	38 ms	2536 KB	Output is correct
58	Correct	183 ms	2536 KB	Output is correct
59	Correct	195 ms	2536 KB	Output is correct
60	Correct	182 ms	2536 KB	Output is correct
61	Correct	194 ms	2536 KB	Output is correct
62	Correct	182 ms	2536 KB	Output is correct
63	Correct	204 ms	2664 KB	Output is correct
64	Correct	173 ms	2536 KB	Output is correct
65	Correct	0 ms	364 KB	Output is correct
66	Incorrect	1 ms	364 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

답안 #378543

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 8.0 / 8.0

Subtask #3 15.0 / 15.0

Subtask #4 16.0 / 16.0

Subtask #5 23.0 / 23.0

Subtask #6 0 / 30.0

Subtask #1
8.0 / 8.0

Subtask #2
8.0 / 8.0

Subtask #3
15.0 / 15.0

Subtask #4
16.0 / 16.0

Subtask #5
23.0 / 23.0

Subtask #6
0 / 30.0