답안 #47893 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
47893	2018-05-08T12:20:34 Z	dqhungdl	Chessboard (IZhO18_chessboard)	C++17	70 / 100	989 ms	10620 KB

chessboard

#include <bits/stdc++.h>
using namespace std;
 
typedef pair<int,int> ii;
int n,k,odd,even;
int64_t res=1e12;
vector<ii> g1[100005],g2[100005];
 
int Cal(int u,int v,int block)
{
	return ((u-1)/block+1+(v-1)/block+1)%2;
}

void Update(int i,int l,int r,int block,int val)
{
	int ll=(l-1)/block+2;
	int rr=(r-1)/block;
	if(ll==rr+2)
	{
		if(Cal(i,l,block)==1)
			odd+=(r-l+1)*val;
		else
			even+=(r-l+1)*val;
		return;
	}
	odd+=(rr-ll+1)/2*block*val;
	even+=(rr-ll+1)/2*block*val;
	if((rr-ll+1)%2==1)
	{
		if(Cal(i,(l-1)*block+1,block)==1)
			odd+=block*val;
		else
			even+=block*val;
	}
	if(Cal(i,l,block)==1)
		odd+=((ll-1)*block-l+1)*val;
	else
		even+=((ll-1)*block-l+1)*val;
	if(Cal(i,r,block)==1)
		odd+=(r-(rr*block))*val;
	else
		even+=(r-(rr*block))*val;
}
 
void Check(int block)
{
	int64_t sodd=0,seven=0,tmp=n/block,codd,ceven;
	if(tmp%2==0)
		codd=ceven=int64_t(n)*int64_t(n)/int64_t(2);
	else
	{
		ceven=(int64_t(n)*int64_t(n)+int64_t(block)*int64_t(block))/int64_t(2);
		codd=int64_t(n)*int64_t(n)-ceven;
	}
	odd=even=0;
	for(int i=1;i<=n;i++)
	{
		for(int j=0;j<g1[i].size();j++)
			Update(i,g1[i][j].first,g1[i][j].second,block,1);
		sodd+=odd;
		seven+=even;
		for(int j=0;j<g2[i].size();j++)
			Update(i,g2[i][j].first,g2[i][j].second,block,-1);
	}
	res=min(res,min(codd-sodd+seven,ceven-seven+sodd));
}
 
int main()
{
	ios_base::sync_with_stdio(false);
	//freopen("TEST.INP","r",stdin);
	//freopen("TEST.OUT","w",stdout);
	cin>>n>>k;
	int u1,v1,u2,v2;
	while(k--)
	{
		cin>>u1>>v1>>u2>>v2;
		g1[u1].push_back(ii(v1,v2));
		g2[u2].push_back(ii(v1,v2));
	}
	for(int i=1;i<n;i++)
		if(n%i==0)
			Check(i);
	cout<<res;
}

Compilation message

chessboard.cpp: In function 'void Check(int)':
chessboard.cpp:58:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<g1[i].size();j++)
               ~^~~~~~~~~~~~~
chessboard.cpp:62:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<g2[i].size();j++)
               ~^~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	5 ms	5096 KB	Output is correct
3	Correct	5 ms	5096 KB	Output is correct
4	Correct	5 ms	5096 KB	Output is correct
5	Correct	5 ms	5164 KB	Output is correct
6	Correct	5 ms	5164 KB	Output is correct
7	Correct	5 ms	5164 KB	Output is correct
8	Correct	5 ms	5164 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	52 ms	7800 KB	Output is correct
2	Correct	26 ms	7800 KB	Output is correct
3	Correct	39 ms	7800 KB	Output is correct
4	Correct	31 ms	7800 KB	Output is correct
5	Correct	47 ms	7800 KB	Output is correct
6	Correct	31 ms	7800 KB	Output is correct
7	Correct	11 ms	7800 KB	Output is correct
8	Correct	32 ms	7800 KB	Output is correct
9	Correct	76 ms	8244 KB	Output is correct
10	Correct	65 ms	8244 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	8244 KB	Output is correct
2	Correct	5 ms	8244 KB	Output is correct
3	Correct	6 ms	8244 KB	Output is correct
4	Correct	6 ms	8244 KB	Output is correct
5	Correct	6 ms	8244 KB	Output is correct
6	Correct	5 ms	8244 KB	Output is correct
7	Correct	6 ms	8244 KB	Output is correct
8	Correct	6 ms	8244 KB	Output is correct
9	Correct	5 ms	8244 KB	Output is correct
10	Correct	5 ms	8244 KB	Output is correct
11	Correct	5 ms	8244 KB	Output is correct
12	Correct	5 ms	8244 KB	Output is correct
13	Correct	6 ms	8244 KB	Output is correct
14	Correct	6 ms	8244 KB	Output is correct
15	Correct	5 ms	8244 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	8244 KB	Output is correct
2	Correct	5 ms	8244 KB	Output is correct
3	Correct	6 ms	8244 KB	Output is correct
4	Correct	6 ms	8244 KB	Output is correct
5	Correct	6 ms	8244 KB	Output is correct
6	Correct	5 ms	8244 KB	Output is correct
7	Correct	6 ms	8244 KB	Output is correct
8	Correct	6 ms	8244 KB	Output is correct
9	Correct	5 ms	8244 KB	Output is correct
10	Correct	5 ms	8244 KB	Output is correct
11	Correct	5 ms	8244 KB	Output is correct
12	Correct	5 ms	8244 KB	Output is correct
13	Correct	6 ms	8244 KB	Output is correct
14	Correct	6 ms	8244 KB	Output is correct
15	Correct	5 ms	8244 KB	Output is correct
16	Correct	21 ms	8244 KB	Output is correct
17	Correct	45 ms	8244 KB	Output is correct
18	Correct	61 ms	8244 KB	Output is correct
19	Correct	159 ms	8244 KB	Output is correct
20	Correct	177 ms	8244 KB	Output is correct
21	Correct	44 ms	8244 KB	Output is correct
22	Correct	6 ms	8244 KB	Output is correct
23	Correct	39 ms	8244 KB	Output is correct
24	Correct	57 ms	8244 KB	Output is correct
25	Correct	12 ms	8244 KB	Output is correct
26	Correct	37 ms	8244 KB	Output is correct
27	Correct	51 ms	8244 KB	Output is correct
28	Correct	59 ms	8244 KB	Output is correct
29	Correct	21 ms	8244 KB	Output is correct
30	Correct	7 ms	8244 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	52 ms	7800 KB	Output is correct
2	Correct	26 ms	7800 KB	Output is correct
3	Correct	39 ms	7800 KB	Output is correct
4	Correct	31 ms	7800 KB	Output is correct
5	Correct	47 ms	7800 KB	Output is correct
6	Correct	31 ms	7800 KB	Output is correct
7	Correct	11 ms	7800 KB	Output is correct
8	Correct	32 ms	7800 KB	Output is correct
9	Correct	76 ms	8244 KB	Output is correct
10	Correct	65 ms	8244 KB	Output is correct
11	Correct	5 ms	8244 KB	Output is correct
12	Correct	5 ms	8244 KB	Output is correct
13	Correct	6 ms	8244 KB	Output is correct
14	Correct	6 ms	8244 KB	Output is correct
15	Correct	6 ms	8244 KB	Output is correct
16	Correct	5 ms	8244 KB	Output is correct
17	Correct	6 ms	8244 KB	Output is correct
18	Correct	6 ms	8244 KB	Output is correct
19	Correct	5 ms	8244 KB	Output is correct
20	Correct	5 ms	8244 KB	Output is correct
21	Correct	5 ms	8244 KB	Output is correct
22	Correct	5 ms	8244 KB	Output is correct
23	Correct	6 ms	8244 KB	Output is correct
24	Correct	6 ms	8244 KB	Output is correct
25	Correct	5 ms	8244 KB	Output is correct
26	Correct	21 ms	8244 KB	Output is correct
27	Correct	45 ms	8244 KB	Output is correct
28	Correct	61 ms	8244 KB	Output is correct
29	Correct	159 ms	8244 KB	Output is correct
30	Correct	177 ms	8244 KB	Output is correct
31	Correct	44 ms	8244 KB	Output is correct
32	Correct	6 ms	8244 KB	Output is correct
33	Correct	39 ms	8244 KB	Output is correct
34	Correct	57 ms	8244 KB	Output is correct
35	Correct	12 ms	8244 KB	Output is correct
36	Correct	37 ms	8244 KB	Output is correct
37	Correct	51 ms	8244 KB	Output is correct
38	Correct	59 ms	8244 KB	Output is correct
39	Correct	21 ms	8244 KB	Output is correct
40	Correct	7 ms	8244 KB	Output is correct
41	Correct	221 ms	9084 KB	Output is correct
42	Correct	121 ms	9424 KB	Output is correct
43	Correct	185 ms	9424 KB	Output is correct
44	Correct	89 ms	9424 KB	Output is correct
45	Correct	91 ms	9424 KB	Output is correct
46	Correct	236 ms	9424 KB	Output is correct
47	Correct	92 ms	9424 KB	Output is correct
48	Correct	127 ms	9424 KB	Output is correct
49	Correct	90 ms	9424 KB	Output is correct
50	Correct	854 ms	9424 KB	Output is correct
51	Correct	898 ms	9424 KB	Output is correct
52	Correct	870 ms	9424 KB	Output is correct
53	Correct	886 ms	9424 KB	Output is correct
54	Correct	801 ms	9424 KB	Output is correct
55	Correct	924 ms	9424 KB	Output is correct
56	Correct	836 ms	9424 KB	Output is correct

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	4984 KB	Output is correct
2	Correct	5 ms	5096 KB	Output is correct
3	Correct	5 ms	5096 KB	Output is correct
4	Correct	5 ms	5096 KB	Output is correct
5	Correct	5 ms	5164 KB	Output is correct
6	Correct	5 ms	5164 KB	Output is correct
7	Correct	5 ms	5164 KB	Output is correct
8	Correct	5 ms	5164 KB	Output is correct
9	Correct	52 ms	7800 KB	Output is correct
10	Correct	26 ms	7800 KB	Output is correct
11	Correct	39 ms	7800 KB	Output is correct
12	Correct	31 ms	7800 KB	Output is correct
13	Correct	47 ms	7800 KB	Output is correct
14	Correct	31 ms	7800 KB	Output is correct
15	Correct	11 ms	7800 KB	Output is correct
16	Correct	32 ms	7800 KB	Output is correct
17	Correct	76 ms	8244 KB	Output is correct
18	Correct	65 ms	8244 KB	Output is correct
19	Correct	5 ms	8244 KB	Output is correct
20	Correct	5 ms	8244 KB	Output is correct
21	Correct	6 ms	8244 KB	Output is correct
22	Correct	6 ms	8244 KB	Output is correct
23	Correct	6 ms	8244 KB	Output is correct
24	Correct	5 ms	8244 KB	Output is correct
25	Correct	6 ms	8244 KB	Output is correct
26	Correct	6 ms	8244 KB	Output is correct
27	Correct	5 ms	8244 KB	Output is correct
28	Correct	5 ms	8244 KB	Output is correct
29	Correct	5 ms	8244 KB	Output is correct
30	Correct	5 ms	8244 KB	Output is correct
31	Correct	6 ms	8244 KB	Output is correct
32	Correct	6 ms	8244 KB	Output is correct
33	Correct	5 ms	8244 KB	Output is correct
34	Correct	21 ms	8244 KB	Output is correct
35	Correct	45 ms	8244 KB	Output is correct
36	Correct	61 ms	8244 KB	Output is correct
37	Correct	159 ms	8244 KB	Output is correct
38	Correct	177 ms	8244 KB	Output is correct
39	Correct	44 ms	8244 KB	Output is correct
40	Correct	6 ms	8244 KB	Output is correct
41	Correct	39 ms	8244 KB	Output is correct
42	Correct	57 ms	8244 KB	Output is correct
43	Correct	12 ms	8244 KB	Output is correct
44	Correct	37 ms	8244 KB	Output is correct
45	Correct	51 ms	8244 KB	Output is correct
46	Correct	59 ms	8244 KB	Output is correct
47	Correct	21 ms	8244 KB	Output is correct
48	Correct	7 ms	8244 KB	Output is correct
49	Correct	221 ms	9084 KB	Output is correct
50	Correct	121 ms	9424 KB	Output is correct
51	Correct	185 ms	9424 KB	Output is correct
52	Correct	89 ms	9424 KB	Output is correct
53	Correct	91 ms	9424 KB	Output is correct
54	Correct	236 ms	9424 KB	Output is correct
55	Correct	92 ms	9424 KB	Output is correct
56	Correct	127 ms	9424 KB	Output is correct
57	Correct	90 ms	9424 KB	Output is correct
58	Correct	854 ms	9424 KB	Output is correct
59	Correct	898 ms	9424 KB	Output is correct
60	Correct	870 ms	9424 KB	Output is correct
61	Correct	886 ms	9424 KB	Output is correct
62	Correct	801 ms	9424 KB	Output is correct
63	Correct	924 ms	9424 KB	Output is correct
64	Correct	836 ms	9424 KB	Output is correct
65	Correct	5 ms	9424 KB	Output is correct
66	Correct	5 ms	9424 KB	Output is correct
67	Incorrect	989 ms	10620 KB	Output isn't correct
68	Halted	0 ms	0 KB	-

답안 #47893

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