답안 #91838 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
91838	2018-12-30T09:53:06 Z	emil_physmath	Chessboard (IZhO18_chessboard)	C++17	100 / 100	1868 ms	3960 KB

chessboard

#include <iostream>
#include <stdio.h>
using namespace std;
const int MAXK=100005;

long long mini[MAXK], maxi[MAXK], minj[MAXK], maxj[MAXK];

long long NumWhite(long long, long long, long long, long long, long long cellLen);
long long FindAns(long long n, long long k, long long cellLen);
int main()
{
	long long n, k;
	cin>>n>>k;
	for (int i=0; i<k; i++)
		scanf("%lld%lld%lld%lld", mini+i, minj+i, maxi+i, maxj+i);
	long long  ans=n*n;
	for (int cellLen=1; cellLen*cellLen<=n; cellLen++)
		if (n%cellLen==0)
		{
			ans=min(ans, FindAns(n, k, cellLen));
			ans=min(ans, FindAns(n, k, n/cellLen));
		}
	cout<<ans<<'\n';
 
	char I;
	cin >> I;
	return 0;
}
 
long long FindAns(long long n, long long k, long long cellLen)
{
	if (cellLen>=n) return n*n;
	long long shouldWhite=0, shouldBlack=0, isBlack=0;
	for (int i=0; i<k; i++)
	{
		shouldWhite+=NumWhite(mini[i], minj[i], maxi[i], maxj[i], cellLen);
		isBlack+=(maxi[i]-mini[i]+1)*(maxj[i]-minj[i]+1);
	}
	shouldBlack=(n*n-NumWhite(1, 1, n, n, cellLen))-(isBlack-shouldWhite);
	return min(shouldWhite+shouldBlack, n*n-(shouldWhite+shouldBlack));
}
long long NumWhite(long long mini, long long minj, long long maxi, long long maxj, long long len)
{
	if (!mini) mini=1;
	if (!minj) minj=1;
	if (mini==1 && minj==1)
	{
		long long  ans=0, i=maxi, j=maxj;
		ans+=len*len*(((i/len)*(j/len)+1)/2);
		if ((i/len)%2)
			ans+=(i%len)*((j/len)/2)*len;
		else
			ans+=(i%len)*((j/len+1)/2)*len;
		if ((j/len)%2)
			ans+=(j%len)*((i/len)/2)*len;
		else
			ans+=(j%len)*((i/len+1)/2)*len;
		if ((i/len)%2==(j/len)%2)
			ans+=(i%len)*(j%len);
		return ans;
	}
	return NumWhite(1, 1, maxi, maxj, len)-
		NumWhite(1, 1, maxi, minj-1, len)-NumWhite(1, 1, mini-1, maxj, len)+
		NumWhite(1, 1, mini-1, minj-1, len);
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:15:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld%lld%lld", mini+i, minj+i, maxi+i, maxj+i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	252 KB	Output is correct
2	Correct	1 ms	256 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	356 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	256 KB	Output is correct
8	Correct	2 ms	252 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	2552 KB	Output is correct
2	Correct	10 ms	888 KB	Output is correct
3	Correct	22 ms	1784 KB	Output is correct
4	Correct	24 ms	1912 KB	Output is correct
5	Correct	29 ms	2168 KB	Output is correct
6	Correct	20 ms	1528 KB	Output is correct
7	Correct	5 ms	632 KB	Output is correct
8	Correct	20 ms	1572 KB	Output is correct
9	Correct	48 ms	3320 KB	Output is correct
10	Correct	29 ms	2040 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	420 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	296 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	1 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	380 KB	Output is correct
14	Correct	3 ms	292 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	420 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	296 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	1 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	380 KB	Output is correct
14	Correct	3 ms	292 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	23 ms	1272 KB	Output is correct
17	Correct	41 ms	3164 KB	Output is correct
18	Correct	76 ms	3616 KB	Output is correct
19	Correct	358 ms	3320 KB	Output is correct
20	Correct	403 ms	3688 KB	Output is correct
21	Correct	40 ms	3036 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	55 ms	1800 KB	Output is correct
24	Correct	68 ms	3264 KB	Output is correct
25	Correct	13 ms	732 KB	Output is correct
26	Correct	43 ms	2296 KB	Output is correct
27	Correct	80 ms	2668 KB	Output is correct
28	Correct	70 ms	3528 KB	Output is correct
29	Correct	17 ms	1404 KB	Output is correct
30	Correct	4 ms	376 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	34 ms	2552 KB	Output is correct
2	Correct	10 ms	888 KB	Output is correct
3	Correct	22 ms	1784 KB	Output is correct
4	Correct	24 ms	1912 KB	Output is correct
5	Correct	29 ms	2168 KB	Output is correct
6	Correct	20 ms	1528 KB	Output is correct
7	Correct	5 ms	632 KB	Output is correct
8	Correct	20 ms	1572 KB	Output is correct
9	Correct	48 ms	3320 KB	Output is correct
10	Correct	29 ms	2040 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	380 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	3 ms	376 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	3 ms	420 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	296 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	1 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	3 ms	380 KB	Output is correct
24	Correct	3 ms	292 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	23 ms	1272 KB	Output is correct
27	Correct	41 ms	3164 KB	Output is correct
28	Correct	76 ms	3616 KB	Output is correct
29	Correct	358 ms	3320 KB	Output is correct
30	Correct	403 ms	3688 KB	Output is correct
31	Correct	40 ms	3036 KB	Output is correct
32	Correct	3 ms	376 KB	Output is correct
33	Correct	55 ms	1800 KB	Output is correct
34	Correct	68 ms	3264 KB	Output is correct
35	Correct	13 ms	732 KB	Output is correct
36	Correct	43 ms	2296 KB	Output is correct
37	Correct	80 ms	2668 KB	Output is correct
38	Correct	70 ms	3528 KB	Output is correct
39	Correct	17 ms	1404 KB	Output is correct
40	Correct	4 ms	376 KB	Output is correct
41	Correct	284 ms	3016 KB	Output is correct
42	Correct	81 ms	3448 KB	Output is correct
43	Correct	155 ms	3064 KB	Output is correct
44	Correct	73 ms	3320 KB	Output is correct
45	Correct	52 ms	3576 KB	Output is correct
46	Correct	322 ms	3436 KB	Output is correct
47	Correct	48 ms	3192 KB	Output is correct
48	Correct	115 ms	3248 KB	Output is correct
49	Correct	70 ms	3292 KB	Output is correct
50	Correct	1617 ms	3448 KB	Output is correct
51	Correct	1674 ms	3676 KB	Output is correct
52	Correct	1550 ms	3320 KB	Output is correct
53	Correct	1686 ms	3448 KB	Output is correct
54	Correct	1521 ms	3308 KB	Output is correct
55	Correct	1709 ms	3704 KB	Output is correct
56	Correct	1505 ms	3320 KB	Output is correct

Subtask #6
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	252 KB	Output is correct
2	Correct	1 ms	256 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	356 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	256 KB	Output is correct
8	Correct	2 ms	252 KB	Output is correct
9	Correct	34 ms	2552 KB	Output is correct
10	Correct	10 ms	888 KB	Output is correct
11	Correct	22 ms	1784 KB	Output is correct
12	Correct	24 ms	1912 KB	Output is correct
13	Correct	29 ms	2168 KB	Output is correct
14	Correct	20 ms	1528 KB	Output is correct
15	Correct	5 ms	632 KB	Output is correct
16	Correct	20 ms	1572 KB	Output is correct
17	Correct	48 ms	3320 KB	Output is correct
18	Correct	29 ms	2040 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	380 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	3 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	3 ms	420 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	296 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	1 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	3 ms	380 KB	Output is correct
32	Correct	3 ms	292 KB	Output is correct
33	Correct	3 ms	376 KB	Output is correct
34	Correct	23 ms	1272 KB	Output is correct
35	Correct	41 ms	3164 KB	Output is correct
36	Correct	76 ms	3616 KB	Output is correct
37	Correct	358 ms	3320 KB	Output is correct
38	Correct	403 ms	3688 KB	Output is correct
39	Correct	40 ms	3036 KB	Output is correct
40	Correct	3 ms	376 KB	Output is correct
41	Correct	55 ms	1800 KB	Output is correct
42	Correct	68 ms	3264 KB	Output is correct
43	Correct	13 ms	732 KB	Output is correct
44	Correct	43 ms	2296 KB	Output is correct
45	Correct	80 ms	2668 KB	Output is correct
46	Correct	70 ms	3528 KB	Output is correct
47	Correct	17 ms	1404 KB	Output is correct
48	Correct	4 ms	376 KB	Output is correct
49	Correct	284 ms	3016 KB	Output is correct
50	Correct	81 ms	3448 KB	Output is correct
51	Correct	155 ms	3064 KB	Output is correct
52	Correct	73 ms	3320 KB	Output is correct
53	Correct	52 ms	3576 KB	Output is correct
54	Correct	322 ms	3436 KB	Output is correct
55	Correct	48 ms	3192 KB	Output is correct
56	Correct	115 ms	3248 KB	Output is correct
57	Correct	70 ms	3292 KB	Output is correct
58	Correct	1617 ms	3448 KB	Output is correct
59	Correct	1674 ms	3676 KB	Output is correct
60	Correct	1550 ms	3320 KB	Output is correct
61	Correct	1686 ms	3448 KB	Output is correct
62	Correct	1521 ms	3308 KB	Output is correct
63	Correct	1709 ms	3704 KB	Output is correct
64	Correct	1505 ms	3320 KB	Output is correct
65	Correct	2 ms	376 KB	Output is correct
66	Correct	2 ms	376 KB	Output is correct
67	Correct	1634 ms	3660 KB	Output is correct
68	Correct	1623 ms	3704 KB	Output is correct
69	Correct	1420 ms	3192 KB	Output is correct
70	Correct	1577 ms	3448 KB	Output is correct
71	Correct	1563 ms	3448 KB	Output is correct
72	Correct	1499 ms	3444 KB	Output is correct
73	Correct	1503 ms	3424 KB	Output is correct
74	Correct	1604 ms	3676 KB	Output is correct
75	Correct	1504 ms	3576 KB	Output is correct
76	Correct	1634 ms	3576 KB	Output is correct
77	Correct	236 ms	3704 KB	Output is correct
78	Correct	73 ms	3448 KB	Output is correct
79	Correct	158 ms	3320 KB	Output is correct
80	Correct	165 ms	3448 KB	Output is correct
81	Correct	153 ms	3228 KB	Output is correct
82	Correct	124 ms	3576 KB	Output is correct
83	Correct	92 ms	3340 KB	Output is correct
84	Correct	1089 ms	3704 KB	Output is correct
85	Correct	1803 ms	3772 KB	Output is correct
86	Correct	3 ms	376 KB	Output is correct
87	Correct	2 ms	376 KB	Output is correct
88	Correct	1868 ms	3960 KB	Output is correct
89	Correct	320 ms	1400 KB	Output is correct
90	Correct	2 ms	376 KB	Output is correct

답안 #91838

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 30.0 / 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
30.0 / 30.0