답안 #81005 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
81005	2018-10-23T12:23:46 Z	ToadDaveski	Chessboard (IZhO18_chessboard)	C++14	70 / 100	498 ms	2304 KB

chessboard

#include <bits/stdc++.h>
#define ll long long
#define fr first
#define sc second
using namespace std;
pair <ll,ll> a[100001];
int main()
{
    ll n,m,i,j;
    cin>>n>>m;
    for(i=1;i<=m;i++)
    {
        ll x,y;
        cin>>x>>x>>x>>y;
        a[i]={x,y};
    }
    ll ans=1e10;
    for(i=1;i<=sqrt(n);i++)
    {
        if (n%i==0)
        {
            ll raz=i;ll  izm=0;
            ll kolb=(((n*n)/(i*i)))/2*i*i;
            ll kolw=((((n*n)/(i*i)))/2+(((n*n)/(i*i))%2))*i*i;
            for(ll j=1;j<=m;j++)
            {
                ll x=(a[j].fr/i)+(a[j].fr%i>0),y=(a[j].sc/i)+(a[j].sc%i>0);
                if ((x+y)%2==1)
                    izm++;
            }
            ans=min(ans,min(izm+(kolw-(m-izm)),(m-izm)+(kolb-izm)));
            //cout<<ans<<" "<<i<<" "<<izm<<" "<<kolb<<" "<<kolw<<endl;
            if (i==1) continue;
            raz=i;
            i=n/i;
            izm=0;
            kolb=(((n*n)/(i*i)))/2*i*i;
            kolw=((((n*n)/(i*i)))/2+(((n*n)/(i*i))%2))*i*i;
            for(ll j=1;j<=m;j++)
            {
                ll x=a[j].fr/i+(a[j].fr%i>0),y=(a[j].sc/i)+(a[j].sc%i>0);
                if ((x+y)%2==1)
                    izm++;
            }
            ans=min(ans,min(izm+(kolw-(m-izm)),(m-izm)+(kolb-izm)));
            //cout<<ans<<" "<<i<<" "<<izm<<endl;
            i=raz;
        }
    }
    cout<<ans;
    return 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
*/

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:9:14: warning: unused variable 'j' [-Wunused-variable]
     ll n,m,i,j;
              ^

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	484 KB	Output is correct
3	Correct	2 ms	484 KB	Output is correct
4	Correct	2 ms	484 KB	Output is correct
5	Correct	2 ms	484 KB	Output is correct
6	Correct	2 ms	484 KB	Output is correct
7	Correct	2 ms	484 KB	Output is correct
8	Correct	2 ms	484 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	86 ms	1400 KB	Output is correct
2	Correct	23 ms	1400 KB	Output is correct
3	Correct	55 ms	1400 KB	Output is correct
4	Correct	56 ms	1400 KB	Output is correct
5	Correct	75 ms	1400 KB	Output is correct
6	Correct	49 ms	1400 KB	Output is correct
7	Correct	12 ms	1400 KB	Output is correct
8	Correct	62 ms	1400 KB	Output is correct
9	Correct	124 ms	1908 KB	Output is correct
10	Correct	69 ms	1908 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1908 KB	Output is correct
2	Correct	2 ms	1908 KB	Output is correct
3	Correct	3 ms	1908 KB	Output is correct
4	Correct	4 ms	1908 KB	Output is correct
5	Correct	3 ms	1908 KB	Output is correct
6	Correct	3 ms	1908 KB	Output is correct
7	Correct	4 ms	1908 KB	Output is correct
8	Correct	2 ms	1908 KB	Output is correct
9	Correct	2 ms	1908 KB	Output is correct
10	Correct	2 ms	1908 KB	Output is correct
11	Correct	2 ms	1908 KB	Output is correct
12	Correct	2 ms	1908 KB	Output is correct
13	Correct	3 ms	1908 KB	Output is correct
14	Correct	3 ms	1908 KB	Output is correct
15	Correct	3 ms	1908 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1908 KB	Output is correct
2	Correct	2 ms	1908 KB	Output is correct
3	Correct	3 ms	1908 KB	Output is correct
4	Correct	4 ms	1908 KB	Output is correct
5	Correct	3 ms	1908 KB	Output is correct
6	Correct	3 ms	1908 KB	Output is correct
7	Correct	4 ms	1908 KB	Output is correct
8	Correct	2 ms	1908 KB	Output is correct
9	Correct	2 ms	1908 KB	Output is correct
10	Correct	2 ms	1908 KB	Output is correct
11	Correct	2 ms	1908 KB	Output is correct
12	Correct	2 ms	1908 KB	Output is correct
13	Correct	3 ms	1908 KB	Output is correct
14	Correct	3 ms	1908 KB	Output is correct
15	Correct	3 ms	1908 KB	Output is correct
16	Correct	35 ms	1908 KB	Output is correct
17	Correct	89 ms	1908 KB	Output is correct
18	Correct	116 ms	2176 KB	Output is correct
19	Correct	162 ms	2176 KB	Output is correct
20	Correct	172 ms	2176 KB	Output is correct
21	Correct	83 ms	2176 KB	Output is correct
22	Correct	2 ms	2176 KB	Output is correct
23	Correct	54 ms	2176 KB	Output is correct
24	Correct	111 ms	2176 KB	Output is correct
25	Correct	13 ms	2176 KB	Output is correct
26	Correct	95 ms	2176 KB	Output is correct
27	Correct	77 ms	2176 KB	Output is correct
28	Correct	108 ms	2176 KB	Output is correct
29	Correct	52 ms	2176 KB	Output is correct
30	Correct	5 ms	2176 KB	Output is correct

Subtask #5
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	86 ms	1400 KB	Output is correct
2	Correct	23 ms	1400 KB	Output is correct
3	Correct	55 ms	1400 KB	Output is correct
4	Correct	56 ms	1400 KB	Output is correct
5	Correct	75 ms	1400 KB	Output is correct
6	Correct	49 ms	1400 KB	Output is correct
7	Correct	12 ms	1400 KB	Output is correct
8	Correct	62 ms	1400 KB	Output is correct
9	Correct	124 ms	1908 KB	Output is correct
10	Correct	69 ms	1908 KB	Output is correct
11	Correct	2 ms	1908 KB	Output is correct
12	Correct	2 ms	1908 KB	Output is correct
13	Correct	3 ms	1908 KB	Output is correct
14	Correct	4 ms	1908 KB	Output is correct
15	Correct	3 ms	1908 KB	Output is correct
16	Correct	3 ms	1908 KB	Output is correct
17	Correct	4 ms	1908 KB	Output is correct
18	Correct	2 ms	1908 KB	Output is correct
19	Correct	2 ms	1908 KB	Output is correct
20	Correct	2 ms	1908 KB	Output is correct
21	Correct	2 ms	1908 KB	Output is correct
22	Correct	2 ms	1908 KB	Output is correct
23	Correct	3 ms	1908 KB	Output is correct
24	Correct	3 ms	1908 KB	Output is correct
25	Correct	3 ms	1908 KB	Output is correct
26	Correct	35 ms	1908 KB	Output is correct
27	Correct	89 ms	1908 KB	Output is correct
28	Correct	116 ms	2176 KB	Output is correct
29	Correct	162 ms	2176 KB	Output is correct
30	Correct	172 ms	2176 KB	Output is correct
31	Correct	83 ms	2176 KB	Output is correct
32	Correct	2 ms	2176 KB	Output is correct
33	Correct	54 ms	2176 KB	Output is correct
34	Correct	111 ms	2176 KB	Output is correct
35	Correct	13 ms	2176 KB	Output is correct
36	Correct	95 ms	2176 KB	Output is correct
37	Correct	77 ms	2176 KB	Output is correct
38	Correct	108 ms	2176 KB	Output is correct
39	Correct	52 ms	2176 KB	Output is correct
40	Correct	5 ms	2176 KB	Output is correct
41	Correct	174 ms	2176 KB	Output is correct
42	Correct	139 ms	2176 KB	Output is correct
43	Correct	137 ms	2176 KB	Output is correct
44	Correct	131 ms	2176 KB	Output is correct
45	Correct	174 ms	2176 KB	Output is correct
46	Correct	185 ms	2176 KB	Output is correct
47	Correct	139 ms	2176 KB	Output is correct
48	Correct	135 ms	2176 KB	Output is correct
49	Correct	126 ms	2176 KB	Output is correct
50	Correct	449 ms	2176 KB	Output is correct
51	Correct	472 ms	2244 KB	Output is correct
52	Correct	478 ms	2244 KB	Output is correct
53	Correct	482 ms	2244 KB	Output is correct
54	Correct	462 ms	2244 KB	Output is correct
55	Correct	498 ms	2304 KB	Output is correct
56	Correct	418 ms	2304 KB	Output is correct

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	484 KB	Output is correct
3	Correct	2 ms	484 KB	Output is correct
4	Correct	2 ms	484 KB	Output is correct
5	Correct	2 ms	484 KB	Output is correct
6	Correct	2 ms	484 KB	Output is correct
7	Correct	2 ms	484 KB	Output is correct
8	Correct	2 ms	484 KB	Output is correct
9	Correct	86 ms	1400 KB	Output is correct
10	Correct	23 ms	1400 KB	Output is correct
11	Correct	55 ms	1400 KB	Output is correct
12	Correct	56 ms	1400 KB	Output is correct
13	Correct	75 ms	1400 KB	Output is correct
14	Correct	49 ms	1400 KB	Output is correct
15	Correct	12 ms	1400 KB	Output is correct
16	Correct	62 ms	1400 KB	Output is correct
17	Correct	124 ms	1908 KB	Output is correct
18	Correct	69 ms	1908 KB	Output is correct
19	Correct	2 ms	1908 KB	Output is correct
20	Correct	2 ms	1908 KB	Output is correct
21	Correct	3 ms	1908 KB	Output is correct
22	Correct	4 ms	1908 KB	Output is correct
23	Correct	3 ms	1908 KB	Output is correct
24	Correct	3 ms	1908 KB	Output is correct
25	Correct	4 ms	1908 KB	Output is correct
26	Correct	2 ms	1908 KB	Output is correct
27	Correct	2 ms	1908 KB	Output is correct
28	Correct	2 ms	1908 KB	Output is correct
29	Correct	2 ms	1908 KB	Output is correct
30	Correct	2 ms	1908 KB	Output is correct
31	Correct	3 ms	1908 KB	Output is correct
32	Correct	3 ms	1908 KB	Output is correct
33	Correct	3 ms	1908 KB	Output is correct
34	Correct	35 ms	1908 KB	Output is correct
35	Correct	89 ms	1908 KB	Output is correct
36	Correct	116 ms	2176 KB	Output is correct
37	Correct	162 ms	2176 KB	Output is correct
38	Correct	172 ms	2176 KB	Output is correct
39	Correct	83 ms	2176 KB	Output is correct
40	Correct	2 ms	2176 KB	Output is correct
41	Correct	54 ms	2176 KB	Output is correct
42	Correct	111 ms	2176 KB	Output is correct
43	Correct	13 ms	2176 KB	Output is correct
44	Correct	95 ms	2176 KB	Output is correct
45	Correct	77 ms	2176 KB	Output is correct
46	Correct	108 ms	2176 KB	Output is correct
47	Correct	52 ms	2176 KB	Output is correct
48	Correct	5 ms	2176 KB	Output is correct
49	Correct	174 ms	2176 KB	Output is correct
50	Correct	139 ms	2176 KB	Output is correct
51	Correct	137 ms	2176 KB	Output is correct
52	Correct	131 ms	2176 KB	Output is correct
53	Correct	174 ms	2176 KB	Output is correct
54	Correct	185 ms	2176 KB	Output is correct
55	Correct	139 ms	2176 KB	Output is correct
56	Correct	135 ms	2176 KB	Output is correct
57	Correct	126 ms	2176 KB	Output is correct
58	Correct	449 ms	2176 KB	Output is correct
59	Correct	472 ms	2244 KB	Output is correct
60	Correct	478 ms	2244 KB	Output is correct
61	Correct	482 ms	2244 KB	Output is correct
62	Correct	462 ms	2244 KB	Output is correct
63	Correct	498 ms	2304 KB	Output is correct
64	Correct	418 ms	2304 KB	Output is correct
65	Correct	2 ms	2304 KB	Output is correct
66	Incorrect	2 ms	2304 KB	Output isn't correct
67	Halted	0 ms	0 KB	-

답안 #81005

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