답안 #93066

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
93066 2019-01-06T11:07:42 Z Makhsud Chessboard (IZhO18_chessboard) C++17
47 / 100
160 ms 808 KB
#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;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 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
# 결과 실행 시간 메모리 Grader output
1 Correct 77 ms 632 KB Output is correct
2 Correct 20 ms 504 KB Output is correct
3 Correct 46 ms 732 KB Output is correct
4 Correct 45 ms 808 KB Output is correct
5 Correct 63 ms 808 KB Output is correct
6 Correct 40 ms 760 KB Output is correct
7 Correct 10 ms 504 KB Output is correct
8 Correct 41 ms 760 KB Output is correct
9 Correct 103 ms 760 KB Output is correct
10 Correct 60 ms 632 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 256 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 256 KB Output is correct
8 Correct 3 ms 256 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 3 ms 256 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 3 ms 256 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 256 KB Output is correct
8 Correct 3 ms 256 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 3 ms 256 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 26 ms 504 KB Output is correct
17 Correct 69 ms 504 KB Output is correct
18 Correct 89 ms 504 KB Output is correct
19 Correct 128 ms 632 KB Output is correct
20 Correct 160 ms 668 KB Output is correct
21 Correct 66 ms 504 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 43 ms 504 KB Output is correct
24 Correct 80 ms 504 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 632 KB Output is correct
28 Correct 85 ms 508 KB Output is correct
29 Correct 28 ms 504 KB Output is correct
30 Correct 4 ms 376 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 77 ms 632 KB Output is correct
2 Correct 20 ms 504 KB Output is correct
3 Correct 46 ms 732 KB Output is correct
4 Correct 45 ms 808 KB Output is correct
5 Correct 63 ms 808 KB Output is correct
6 Correct 40 ms 760 KB Output is correct
7 Correct 10 ms 504 KB Output is correct
8 Correct 41 ms 760 KB Output is correct
9 Correct 103 ms 760 KB Output is correct
10 Correct 60 ms 632 KB Output is correct
11 Correct 2 ms 256 KB Output is correct
12 Correct 2 ms 256 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 3 ms 256 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 256 KB Output is correct
18 Correct 3 ms 256 KB Output is correct
19 Correct 3 ms 376 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 256 KB Output is correct
23 Correct 3 ms 256 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 26 ms 504 KB Output is correct
27 Correct 69 ms 504 KB Output is correct
28 Correct 89 ms 504 KB Output is correct
29 Correct 128 ms 632 KB Output is correct
30 Correct 160 ms 668 KB Output is correct
31 Correct 66 ms 504 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 43 ms 504 KB Output is correct
34 Correct 80 ms 504 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 632 KB Output is correct
38 Correct 85 ms 508 KB Output is correct
39 Correct 28 ms 504 KB Output is correct
40 Correct 4 ms 376 KB Output is correct
41 Incorrect 140 ms 760 KB Output isn't correct
42 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 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 77 ms 632 KB Output is correct
10 Correct 20 ms 504 KB Output is correct
11 Correct 46 ms 732 KB Output is correct
12 Correct 45 ms 808 KB Output is correct
13 Correct 63 ms 808 KB Output is correct
14 Correct 40 ms 760 KB Output is correct
15 Correct 10 ms 504 KB Output is correct
16 Correct 41 ms 760 KB Output is correct
17 Correct 103 ms 760 KB Output is correct
18 Correct 60 ms 632 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 256 KB Output is correct
22 Correct 3 ms 256 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 256 KB Output is correct
26 Correct 3 ms 256 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 2 ms 256 KB Output is correct
31 Correct 3 ms 256 KB Output is correct
32 Correct 3 ms 376 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 26 ms 504 KB Output is correct
35 Correct 69 ms 504 KB Output is correct
36 Correct 89 ms 504 KB Output is correct
37 Correct 128 ms 632 KB Output is correct
38 Correct 160 ms 668 KB Output is correct
39 Correct 66 ms 504 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 43 ms 504 KB Output is correct
42 Correct 80 ms 504 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 632 KB Output is correct
46 Correct 85 ms 508 KB Output is correct
47 Correct 28 ms 504 KB Output is correct
48 Correct 4 ms 376 KB Output is correct
49 Incorrect 140 ms 760 KB Output isn't correct
50 Halted 0 ms 0 KB -