Submission #488351

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
488351	2021-11-18T17:04:27 Z	levsog2004	Chessboard (IZhO18_chessboard)	C++14	70 / 100	207 ms	2508 KB

chessboard

#include <iostream>
#include <iomanip>
#include <fstream>
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <list>
#include <set>
#include <map>
using namespace std;
typedef  long long  ll;
#define all(x) x.begin(),x.end()
#define al(a,n)  (a,a+n)
#define se second
#define fr first
#define m_p make_pair
const ll N = 1005;
const ll mod = 1000 * 1000 * 1000 + 7;
const ll inf = 1000000009;
ll n, m, k, z, t, x, y, ans, pat,a[N][N];
pair<ll, ll> p[N][N];
vector<pair<ll, ll>> v;
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i < m; ++i)
	{
		cin >> x >> y >> x >> y;
		v.push_back({ x-1,y-1 });
	}
	ans = inf*inf;
	for (int ii = 1; ii <= n/2; ++ii)
	{
		x = 0;
		y = 0;
		if (n % ii == 0)
		{
			for (int i = 0; i < m; ++i)
			{
				if ((v[i].first / ii + v[i].second / ii) % 2 == 0)
				{
					x++;
				}
				else
					y++;
			}
			k = n / ii;
			k *= k;
			z = k / 2;
			if (k % 2 == 1)
				z++;
			k /= 2;
			ans = min(ans, min(z*ii*ii-x+y,k*ii*ii-y+x));
		}
	}
	cout << ans << endl;
	return 0;
}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	24 ms	1484 KB	Output is correct
2	Correct	6 ms	976 KB	Output is correct
3	Correct	13 ms	1484 KB	Output is correct
4	Correct	12 ms	1436 KB	Output is correct
5	Correct	17 ms	1420 KB	Output is correct
6	Correct	13 ms	1532 KB	Output is correct
7	Correct	2 ms	460 KB	Output is correct
8	Correct	11 ms	1484 KB	Output is correct
9	Correct	28 ms	2400 KB	Output is correct
10	Correct	16 ms	1484 KB	Output is correct

Subtask #3
15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	336 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct

Subtask #4
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	332 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	0 ms	336 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	1 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	1 ms	332 KB	Output is correct
10	Correct	0 ms	204 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	0 ms	332 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	7 ms	976 KB	Output is correct
17	Correct	23 ms	2500 KB	Output is correct
18	Correct	29 ms	2504 KB	Output is correct
19	Correct	54 ms	2508 KB	Output is correct
20	Correct	58 ms	2504 KB	Output is correct
21	Correct	20 ms	2484 KB	Output is correct
22	Correct	0 ms	332 KB	Output is correct
23	Correct	15 ms	1484 KB	Output is correct
24	Correct	25 ms	2504 KB	Output is correct
25	Correct	3 ms	592 KB	Output is correct
26	Correct	17 ms	1468 KB	Output is correct
27	Correct	21 ms	2488 KB	Output is correct
28	Correct	28 ms	2456 KB	Output is correct
29	Correct	12 ms	1484 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct

Subtask #5
23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	24 ms	1484 KB	Output is correct
2	Correct	6 ms	976 KB	Output is correct
3	Correct	13 ms	1484 KB	Output is correct
4	Correct	12 ms	1436 KB	Output is correct
5	Correct	17 ms	1420 KB	Output is correct
6	Correct	13 ms	1532 KB	Output is correct
7	Correct	2 ms	460 KB	Output is correct
8	Correct	11 ms	1484 KB	Output is correct
9	Correct	28 ms	2400 KB	Output is correct
10	Correct	16 ms	1484 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	204 KB	Output is correct
13	Correct	0 ms	204 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	0 ms	336 KB	Output is correct
16	Correct	0 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	0 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	0 ms	332 KB	Output is correct
22	Correct	0 ms	332 KB	Output is correct
23	Correct	0 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	7 ms	976 KB	Output is correct
27	Correct	23 ms	2500 KB	Output is correct
28	Correct	29 ms	2504 KB	Output is correct
29	Correct	54 ms	2508 KB	Output is correct
30	Correct	58 ms	2504 KB	Output is correct
31	Correct	20 ms	2484 KB	Output is correct
32	Correct	0 ms	332 KB	Output is correct
33	Correct	15 ms	1484 KB	Output is correct
34	Correct	25 ms	2504 KB	Output is correct
35	Correct	3 ms	592 KB	Output is correct
36	Correct	17 ms	1468 KB	Output is correct
37	Correct	21 ms	2488 KB	Output is correct
38	Correct	28 ms	2456 KB	Output is correct
39	Correct	12 ms	1484 KB	Output is correct
40	Correct	1 ms	332 KB	Output is correct
41	Correct	51 ms	2400 KB	Output is correct
42	Correct	31 ms	2504 KB	Output is correct
43	Correct	37 ms	2408 KB	Output is correct
44	Correct	30 ms	2504 KB	Output is correct
45	Correct	29 ms	2440 KB	Output is correct
46	Correct	60 ms	2460 KB	Output is correct
47	Correct	25 ms	2448 KB	Output is correct
48	Correct	34 ms	2416 KB	Output is correct
49	Correct	30 ms	2460 KB	Output is correct
50	Correct	192 ms	2496 KB	Output is correct
51	Correct	202 ms	2504 KB	Output is correct
52	Correct	191 ms	2476 KB	Output is correct
53	Correct	206 ms	2504 KB	Output is correct
54	Correct	198 ms	2416 KB	Output is correct
55	Correct	207 ms	2424 KB	Output is correct
56	Correct	178 ms	2504 KB	Output is correct

Subtask #6
0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	0 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	24 ms	1484 KB	Output is correct
10	Correct	6 ms	976 KB	Output is correct
11	Correct	13 ms	1484 KB	Output is correct
12	Correct	12 ms	1436 KB	Output is correct
13	Correct	17 ms	1420 KB	Output is correct
14	Correct	13 ms	1532 KB	Output is correct
15	Correct	2 ms	460 KB	Output is correct
16	Correct	11 ms	1484 KB	Output is correct
17	Correct	28 ms	2400 KB	Output is correct
18	Correct	16 ms	1484 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	0 ms	204 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	0 ms	336 KB	Output is correct
24	Correct	0 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	0 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	0 ms	204 KB	Output is correct
29	Correct	0 ms	332 KB	Output is correct
30	Correct	0 ms	332 KB	Output is correct
31	Correct	0 ms	332 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	7 ms	976 KB	Output is correct
35	Correct	23 ms	2500 KB	Output is correct
36	Correct	29 ms	2504 KB	Output is correct
37	Correct	54 ms	2508 KB	Output is correct
38	Correct	58 ms	2504 KB	Output is correct
39	Correct	20 ms	2484 KB	Output is correct
40	Correct	0 ms	332 KB	Output is correct
41	Correct	15 ms	1484 KB	Output is correct
42	Correct	25 ms	2504 KB	Output is correct
43	Correct	3 ms	592 KB	Output is correct
44	Correct	17 ms	1468 KB	Output is correct
45	Correct	21 ms	2488 KB	Output is correct
46	Correct	28 ms	2456 KB	Output is correct
47	Correct	12 ms	1484 KB	Output is correct
48	Correct	1 ms	332 KB	Output is correct
49	Correct	51 ms	2400 KB	Output is correct
50	Correct	31 ms	2504 KB	Output is correct
51	Correct	37 ms	2408 KB	Output is correct
52	Correct	30 ms	2504 KB	Output is correct
53	Correct	29 ms	2440 KB	Output is correct
54	Correct	60 ms	2460 KB	Output is correct
55	Correct	25 ms	2448 KB	Output is correct
56	Correct	34 ms	2416 KB	Output is correct
57	Correct	30 ms	2460 KB	Output is correct
58	Correct	192 ms	2496 KB	Output is correct
59	Correct	202 ms	2504 KB	Output is correct
60	Correct	191 ms	2476 KB	Output is correct
61	Correct	206 ms	2504 KB	Output is correct
62	Correct	198 ms	2416 KB	Output is correct
63	Correct	207 ms	2424 KB	Output is correct
64	Correct	178 ms	2504 KB	Output is correct
65	Correct	0 ms	204 KB	Output is correct
66	Incorrect	0 ms	204 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

Submission #488351

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