답안 #76769 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
76769	2018-09-17T16:13:34 Z	zetapi	Chessboard (IZhO18_chessboard)	C++14	70 / 100	702 ms	2300 KB

chessboard

#include "bits/stdc++.h"
using namespace std;

#define pb  push_back
#define mp  make_pair
#define int long long
#define itr iterator

typedef pair<int,int> pii;

const int MAX=1e6;
const int INF=1e12;

pii arr[MAX];

int N,K,ans;

int cell(int a,int c)
{
	return (a-1)/c+1;
}

int cell(int a,int b,int c)
{
	a--;
	b--;
	a/=c;
	b/=c;
	a++;
	b++;
	return a+b;
}

int cal(int X)
{
	if(X==N)
		return INF;
	//At first color the cell (1,1) white
	int res=(((N/X)*(N/X))/2)*X*X;
	for(int A=1;A<=K;A++)
	{
		if(cell(arr[A].first,arr[A].second,X)%2==0)	//this cell should be white
			res++;
		else	//this cell should be black
			res--;
	}
	//Color the cell (1,1) black
	int res_2=(((N/X)*(N/X))/2+(N/X)%2)*X*X;
	for(int A=1;A<=K;A++)
	{
		if(cell(arr[A].first,arr[A].second,X)%2==0)	//this cell should be black
			res_2--;
		else
			res_2++;
	}
	return min(res,res_2);
}

signed main()
{
	ios_base::sync_with_stdio(false);

	ans=INF;
	cin>>N>>K;
	for(int A=1;A<=K;A++)
		cin>>arr[A].first>>arr[A].second>>arr[A].first>>arr[A].second;
	for(int A=1;A*A<=N;A++)
	{
		if(!(N%A))
		{
			if(A*A==N)
				ans=min(ans,cal(A));
			else
				ans=min(ans,cal(A)),
				ans=min(ans,cal(N/A));
		}
	}
	cout<<ans;
	return 0;
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	568 KB	Output is correct
4	Correct	2 ms	568 KB	Output is correct
5	Correct	2 ms	676 KB	Output is correct
6	Correct	2 ms	676 KB	Output is correct
7	Correct	2 ms	676 KB	Output is correct
8	Correct	2 ms	676 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	36 ms	1504 KB	Output is correct
2	Correct	10 ms	1504 KB	Output is correct
3	Correct	37 ms	1504 KB	Output is correct
4	Correct	25 ms	1504 KB	Output is correct
5	Correct	30 ms	1504 KB	Output is correct
6	Correct	19 ms	1504 KB	Output is correct
7	Correct	5 ms	1504 KB	Output is correct
8	Correct	19 ms	1504 KB	Output is correct
9	Correct	48 ms	2044 KB	Output is correct
10	Correct	28 ms	2044 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2044 KB	Output is correct
2	Correct	2 ms	2044 KB	Output is correct
3	Correct	3 ms	2044 KB	Output is correct
4	Correct	3 ms	2044 KB	Output is correct
5	Correct	2 ms	2044 KB	Output is correct
6	Correct	2 ms	2044 KB	Output is correct
7	Correct	3 ms	2044 KB	Output is correct
8	Correct	2 ms	2044 KB	Output is correct
9	Correct	2 ms	2044 KB	Output is correct
10	Correct	2 ms	2044 KB	Output is correct
11	Correct	3 ms	2044 KB	Output is correct
12	Correct	2 ms	2044 KB	Output is correct
13	Correct	2 ms	2044 KB	Output is correct
14	Correct	3 ms	2044 KB	Output is correct
15	Correct	2 ms	2044 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	2044 KB	Output is correct
2	Correct	2 ms	2044 KB	Output is correct
3	Correct	3 ms	2044 KB	Output is correct
4	Correct	3 ms	2044 KB	Output is correct
5	Correct	2 ms	2044 KB	Output is correct
6	Correct	2 ms	2044 KB	Output is correct
7	Correct	3 ms	2044 KB	Output is correct
8	Correct	2 ms	2044 KB	Output is correct
9	Correct	2 ms	2044 KB	Output is correct
10	Correct	2 ms	2044 KB	Output is correct
11	Correct	3 ms	2044 KB	Output is correct
12	Correct	2 ms	2044 KB	Output is correct
13	Correct	2 ms	2044 KB	Output is correct
14	Correct	3 ms	2044 KB	Output is correct
15	Correct	2 ms	2044 KB	Output is correct
16	Correct	21 ms	2044 KB	Output is correct
17	Correct	37 ms	2044 KB	Output is correct
18	Correct	64 ms	2172 KB	Output is correct
19	Correct	156 ms	2172 KB	Output is correct
20	Correct	178 ms	2300 KB	Output is correct
21	Correct	36 ms	2300 KB	Output is correct
22	Correct	2 ms	2300 KB	Output is correct
23	Correct	32 ms	2300 KB	Output is correct
24	Correct	49 ms	2300 KB	Output is correct
25	Correct	9 ms	2300 KB	Output is correct
26	Correct	32 ms	2300 KB	Output is correct
27	Correct	44 ms	2300 KB	Output is correct
28	Correct	54 ms	2300 KB	Output is correct
29	Correct	17 ms	2300 KB	Output is correct
30	Correct	3 ms	2300 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	36 ms	1504 KB	Output is correct
2	Correct	10 ms	1504 KB	Output is correct
3	Correct	37 ms	1504 KB	Output is correct
4	Correct	25 ms	1504 KB	Output is correct
5	Correct	30 ms	1504 KB	Output is correct
6	Correct	19 ms	1504 KB	Output is correct
7	Correct	5 ms	1504 KB	Output is correct
8	Correct	19 ms	1504 KB	Output is correct
9	Correct	48 ms	2044 KB	Output is correct
10	Correct	28 ms	2044 KB	Output is correct
11	Correct	2 ms	2044 KB	Output is correct
12	Correct	2 ms	2044 KB	Output is correct
13	Correct	3 ms	2044 KB	Output is correct
14	Correct	3 ms	2044 KB	Output is correct
15	Correct	2 ms	2044 KB	Output is correct
16	Correct	2 ms	2044 KB	Output is correct
17	Correct	3 ms	2044 KB	Output is correct
18	Correct	2 ms	2044 KB	Output is correct
19	Correct	2 ms	2044 KB	Output is correct
20	Correct	2 ms	2044 KB	Output is correct
21	Correct	3 ms	2044 KB	Output is correct
22	Correct	2 ms	2044 KB	Output is correct
23	Correct	2 ms	2044 KB	Output is correct
24	Correct	3 ms	2044 KB	Output is correct
25	Correct	2 ms	2044 KB	Output is correct
26	Correct	21 ms	2044 KB	Output is correct
27	Correct	37 ms	2044 KB	Output is correct
28	Correct	64 ms	2172 KB	Output is correct
29	Correct	156 ms	2172 KB	Output is correct
30	Correct	178 ms	2300 KB	Output is correct
31	Correct	36 ms	2300 KB	Output is correct
32	Correct	2 ms	2300 KB	Output is correct
33	Correct	32 ms	2300 KB	Output is correct
34	Correct	49 ms	2300 KB	Output is correct
35	Correct	9 ms	2300 KB	Output is correct
36	Correct	32 ms	2300 KB	Output is correct
37	Correct	44 ms	2300 KB	Output is correct
38	Correct	54 ms	2300 KB	Output is correct
39	Correct	17 ms	2300 KB	Output is correct
40	Correct	3 ms	2300 KB	Output is correct
41	Correct	139 ms	2300 KB	Output is correct
42	Correct	56 ms	2300 KB	Output is correct
43	Correct	86 ms	2300 KB	Output is correct
44	Correct	57 ms	2300 KB	Output is correct
45	Correct	49 ms	2300 KB	Output is correct
46	Correct	150 ms	2300 KB	Output is correct
47	Correct	43 ms	2300 KB	Output is correct
48	Correct	73 ms	2300 KB	Output is correct
49	Correct	54 ms	2300 KB	Output is correct
50	Correct	674 ms	2300 KB	Output is correct
51	Correct	683 ms	2300 KB	Output is correct
52	Correct	623 ms	2300 KB	Output is correct
53	Correct	702 ms	2300 KB	Output is correct
54	Correct	634 ms	2300 KB	Output is correct
55	Correct	689 ms	2300 KB	Output is correct
56	Correct	605 ms	2300 KB	Output is correct

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	568 KB	Output is correct
4	Correct	2 ms	568 KB	Output is correct
5	Correct	2 ms	676 KB	Output is correct
6	Correct	2 ms	676 KB	Output is correct
7	Correct	2 ms	676 KB	Output is correct
8	Correct	2 ms	676 KB	Output is correct
9	Correct	36 ms	1504 KB	Output is correct
10	Correct	10 ms	1504 KB	Output is correct
11	Correct	37 ms	1504 KB	Output is correct
12	Correct	25 ms	1504 KB	Output is correct
13	Correct	30 ms	1504 KB	Output is correct
14	Correct	19 ms	1504 KB	Output is correct
15	Correct	5 ms	1504 KB	Output is correct
16	Correct	19 ms	1504 KB	Output is correct
17	Correct	48 ms	2044 KB	Output is correct
18	Correct	28 ms	2044 KB	Output is correct
19	Correct	2 ms	2044 KB	Output is correct
20	Correct	2 ms	2044 KB	Output is correct
21	Correct	3 ms	2044 KB	Output is correct
22	Correct	3 ms	2044 KB	Output is correct
23	Correct	2 ms	2044 KB	Output is correct
24	Correct	2 ms	2044 KB	Output is correct
25	Correct	3 ms	2044 KB	Output is correct
26	Correct	2 ms	2044 KB	Output is correct
27	Correct	2 ms	2044 KB	Output is correct
28	Correct	2 ms	2044 KB	Output is correct
29	Correct	3 ms	2044 KB	Output is correct
30	Correct	2 ms	2044 KB	Output is correct
31	Correct	2 ms	2044 KB	Output is correct
32	Correct	3 ms	2044 KB	Output is correct
33	Correct	2 ms	2044 KB	Output is correct
34	Correct	21 ms	2044 KB	Output is correct
35	Correct	37 ms	2044 KB	Output is correct
36	Correct	64 ms	2172 KB	Output is correct
37	Correct	156 ms	2172 KB	Output is correct
38	Correct	178 ms	2300 KB	Output is correct
39	Correct	36 ms	2300 KB	Output is correct
40	Correct	2 ms	2300 KB	Output is correct
41	Correct	32 ms	2300 KB	Output is correct
42	Correct	49 ms	2300 KB	Output is correct
43	Correct	9 ms	2300 KB	Output is correct
44	Correct	32 ms	2300 KB	Output is correct
45	Correct	44 ms	2300 KB	Output is correct
46	Correct	54 ms	2300 KB	Output is correct
47	Correct	17 ms	2300 KB	Output is correct
48	Correct	3 ms	2300 KB	Output is correct
49	Correct	139 ms	2300 KB	Output is correct
50	Correct	56 ms	2300 KB	Output is correct
51	Correct	86 ms	2300 KB	Output is correct
52	Correct	57 ms	2300 KB	Output is correct
53	Correct	49 ms	2300 KB	Output is correct
54	Correct	150 ms	2300 KB	Output is correct
55	Correct	43 ms	2300 KB	Output is correct
56	Correct	73 ms	2300 KB	Output is correct
57	Correct	54 ms	2300 KB	Output is correct
58	Correct	674 ms	2300 KB	Output is correct
59	Correct	683 ms	2300 KB	Output is correct
60	Correct	623 ms	2300 KB	Output is correct
61	Correct	702 ms	2300 KB	Output is correct
62	Correct	634 ms	2300 KB	Output is correct
63	Correct	689 ms	2300 KB	Output is correct
64	Correct	605 ms	2300 KB	Output is correct
65	Correct	2 ms	2300 KB	Output is correct
66	Incorrect	2 ms	2300 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

답안 #76769

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