답안 #93087 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
93087	2019-01-06T12:08:37 Z	Makhsud	Chessboard (IZhO18_chessboard)	C++17	47 / 100	141 ms	888 KB

chessboard

#include <bits/stdc++.h>
#define ll long long
using namespace std;

ll n, k, x, y, xx, yy;
ll mn = INT_MAX;

ll ch ( ll del ) {
	ll ans = 0;
	if ( del == 1 ) {
		return (n*n)/2;
	}
	for ( int i = 1; i <= (n/del); i ++ ) {
		if ( i % 2 == 1 ) {
			ans += (del*del) * ( (n/del) / 2 );
		}
		else {
			ans += (del*del) * ( ( ( n/del )+1) / 2 );
		}
	}
	return ans;
}
ll a[5][5];
void subt2()
{
	for ( int i = 1; i <= k; i ++ ) {
		cin >> x >> y >> xx >> yy;
		a[x%2][y%2]++;
	}
	ll a1 = 0, a2 = 0;
	a1 = (n*n) / 2;
	a2 = a1 + 1;

	a2 = a2 - (a[1][1] + a[0][0]);
	a2 = a2 + (a[1][0] + a[0][1]);

	a1 = a1 - (a[1][0] + a[0][1]);
	a1 = a1 + (a[1][1] + a[0][0]);

	cout << min ( (a1), (a2) );
}
ll d[50000][5][5];
vector<ll>divs;
void subt3()
{
	for ( int i = 1; i < n; i ++ ){
		if ( n % i == 0 ){
			divs.push_back((ll)i);
		}
	}
	for ( int i = 1; i <= k; i ++ ) {
		cin >> x >> y >> xx >> yy;
		for ( auto e: divs ) {
			ll c, r;
			r = ( x / e ) + ((x % e) && 1 );
			c = ( y / e ) + ((y % e) && 1 );
			d[e][r%2][c%2] ++;
		}
	}
	ll cnt1 = 0, cnt2 = 0, mn = INT_MAX;
	for ( auto e: divs ){
		cnt1 = cnt2 = 0;
		for ( int i = 1; i <= n/e; i ++ ) {
			if ( i % 2 == 1 ) {
				cnt1 += ( (e*e) * ((n/e )/2) );
				cnt2 += ( (e*e) * (((n/e )+1)/2) );
			} else {
				cnt2 += ( (e*e) * ((n/e )/2) );
				cnt1 += ( (e*e) * (((n/e )+1)/2) );
			}
		}
		cnt1 += (d[e][1][1] + d[e][0][0]);
		cnt1 -= (d[e][1][0] + d[e][0][1]);

		cnt2 += (d[e][1][0] + d[e][0][1]);
		cnt2 -= (d[e][1][1] + d[e][0][0]);
		mn = min( mn, min( cnt1, cnt2 ) );
	}
	cout << mn;
}

int main()
{
	cin >> n >> k;
	ll cnt = 0;
	for ( int i = 1; i <= n; i ++ )
		if ( n % i == 0 ) cnt ++;

	if ( cnt == 2 ){
		subt2();
		return 0;
	}

	if ( k != 0 ) {
		subt3();
		return 0;
	}

	for ( int i = 1; i < n; i ++ ) {
		if ( n % i == 0 ) {
			ll an = ch(i);
			mn = min ( mn, an );
		}
	}
	cout << mn;
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	2 ms	256 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	444 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	256 KB	Output is correct
2	Correct	20 ms	376 KB	Output is correct
3	Correct	49 ms	476 KB	Output is correct
4	Correct	44 ms	256 KB	Output is correct
5	Correct	62 ms	376 KB	Output is correct
6	Correct	41 ms	376 KB	Output is correct
7	Correct	10 ms	376 KB	Output is correct
8	Correct	42 ms	504 KB	Output is correct
9	Correct	99 ms	360 KB	Output is correct
10	Correct	57 ms	376 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	400 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	3 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct

Subtask #4
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	400 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	256 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	3 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	27 ms	504 KB	Output is correct
17	Correct	71 ms	760 KB	Output is correct
18	Correct	89 ms	724 KB	Output is correct
19	Correct	126 ms	760 KB	Output is correct
20	Correct	141 ms	732 KB	Output is correct
21	Correct	67 ms	760 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	45 ms	600 KB	Output is correct
24	Correct	81 ms	760 KB	Output is correct
25	Correct	10 ms	376 KB	Output is correct
26	Correct	51 ms	504 KB	Output is correct
27	Correct	64 ms	768 KB	Output is correct
28	Correct	86 ms	780 KB	Output is correct
29	Correct	28 ms	504 KB	Output is correct
30	Correct	4 ms	376 KB	Output is correct

Subtask #5
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	256 KB	Output is correct
2	Correct	20 ms	376 KB	Output is correct
3	Correct	49 ms	476 KB	Output is correct
4	Correct	44 ms	256 KB	Output is correct
5	Correct	62 ms	376 KB	Output is correct
6	Correct	41 ms	376 KB	Output is correct
7	Correct	10 ms	376 KB	Output is correct
8	Correct	42 ms	504 KB	Output is correct
9	Correct	99 ms	360 KB	Output is correct
10	Correct	57 ms	376 KB	Output is correct
11	Correct	2 ms	400 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	256 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	256 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	256 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	27 ms	504 KB	Output is correct
27	Correct	71 ms	760 KB	Output is correct
28	Correct	89 ms	724 KB	Output is correct
29	Correct	126 ms	760 KB	Output is correct
30	Correct	141 ms	732 KB	Output is correct
31	Correct	67 ms	760 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	45 ms	600 KB	Output is correct
34	Correct	81 ms	760 KB	Output is correct
35	Correct	10 ms	376 KB	Output is correct
36	Correct	51 ms	504 KB	Output is correct
37	Correct	64 ms	768 KB	Output is correct
38	Correct	86 ms	780 KB	Output is correct
39	Correct	28 ms	504 KB	Output is correct
40	Correct	4 ms	376 KB	Output is correct
41	Incorrect	137 ms	888 KB	Output isn't correct
42	Halted	0 ms	0 KB	-

Subtask #6
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	256 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	256 KB	Output is correct
4	Correct	2 ms	256 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	444 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	72 ms	256 KB	Output is correct
10	Correct	20 ms	376 KB	Output is correct
11	Correct	49 ms	476 KB	Output is correct
12	Correct	44 ms	256 KB	Output is correct
13	Correct	62 ms	376 KB	Output is correct
14	Correct	41 ms	376 KB	Output is correct
15	Correct	10 ms	376 KB	Output is correct
16	Correct	42 ms	504 KB	Output is correct
17	Correct	99 ms	360 KB	Output is correct
18	Correct	57 ms	376 KB	Output is correct
19	Correct	2 ms	400 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	256 KB	Output is correct
28	Correct	2 ms	256 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	256 KB	Output is correct
32	Correct	3 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	27 ms	504 KB	Output is correct
35	Correct	71 ms	760 KB	Output is correct
36	Correct	89 ms	724 KB	Output is correct
37	Correct	126 ms	760 KB	Output is correct
38	Correct	141 ms	732 KB	Output is correct
39	Correct	67 ms	760 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	45 ms	600 KB	Output is correct
42	Correct	81 ms	760 KB	Output is correct
43	Correct	10 ms	376 KB	Output is correct
44	Correct	51 ms	504 KB	Output is correct
45	Correct	64 ms	768 KB	Output is correct
46	Correct	86 ms	780 KB	Output is correct
47	Correct	28 ms	504 KB	Output is correct
48	Correct	4 ms	376 KB	Output is correct
49	Incorrect	137 ms	888 KB	Output isn't correct
50	Halted	0 ms	0 KB	-

답안 #93087

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 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
0 / 23.0

Subtask #6
0 / 30.0