oj.uz

답안 #378881

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
378881 2021-03-17T06:55:29 Z cheissmart Chessboard (IZhO18_chessboard) C++14
100 / 100
 741 ms 2176 KB 
#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define ALL(v) (v).begin(), (v).end()
#define debug(x) cerr << "Line(" << __LINE__ << ") -> " << #x << " is " << x << endl

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

const int INF = 1e9 + 7, N = 1e5 + 7;
const ll oo = 1e18;

array<int, 4> a[N];

signed main()
{
	IO_OP;

	int n, k;
	cin >> n >> k;

	for(int i = 0; i < k; i++) {
		for(int j = 0; j < 4; j++)
			cin >> a[i][j], a[i][j]--;
	}

	ll ans = oo;
	auto go = [&] (int b) {
		int m = n / b;
		ll white = (ll) m * m / 2 * b * b, black = (ll) n * n - white;
		ll wb = 0;
		auto solve = [&] (int x, int y) {
			if(x < 0 || y < 0) return 0LL;
			int l = (x + 1) % (2 * b), r = (y + 1) % (2 * b);
			ll W = 0, B = 0;
			B += (ll) min(l, b) * min(r, b);
			B += (ll) max(0, l - b) * max(0, r - b);
			W += (ll) min(l, b) * max(0, r - b);
			W += (ll) max(0, l - b) * min(r, b);
			if((x / (2 * b) * 2 + y / (2 * b) * 2) & 1)
				swap(W, B);
			return W - B;
		};
		for(int i = 0; i < k; i++) {
			wb += solve(a[i][2], a[i][3]) - solve(a[i][0] - 1, a[i][3]) - solve(a[i][2], a[i][1] - 1) + solve(a[i][0] - 1, a[i][1] - 1);
		}
		return black + wb;
	};

	for(int i = 1; i < n; i++) {
		if(n % i == 0) {
			ll t = go(i);
			t = min(t, (ll) n * n - t);
			ans = min(ans, t);
		}
	}
	cout << ans << '\n';

}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 1260 KB Output is correct
2 Correct 7 ms 620 KB Output is correct
3 Correct 18 ms 1004 KB Output is correct
4 Correct 21 ms 1004 KB Output is correct
5 Correct 24 ms 1132 KB Output is correct
6 Correct 16 ms 876 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 16 ms 876 KB Output is correct
9 Correct 39 ms 1772 KB Output is correct
10 Correct 22 ms 1132 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 13 ms 876 KB Output is correct
17 Correct 31 ms 1644 KB Output is correct
18 Correct 47 ms 1900 KB Output is correct
19 Correct 147 ms 1772 KB Output is correct
20 Correct 169 ms 1900 KB Output is correct
21 Correct 32 ms 1644 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 29 ms 1004 KB Output is correct
24 Correct 43 ms 1772 KB Output is correct
25 Correct 6 ms 492 KB Output is correct
26 Correct 27 ms 1260 KB Output is correct
27 Correct 41 ms 1388 KB Output is correct
28 Correct 46 ms 1772 KB Output is correct
29 Correct 13 ms 876 KB Output is correct
30 Correct 2 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 1260 KB Output is correct
2 Correct 7 ms 620 KB Output is correct
3 Correct 18 ms 1004 KB Output is correct
4 Correct 21 ms 1004 KB Output is correct
5 Correct 24 ms 1132 KB Output is correct
6 Correct 16 ms 876 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 16 ms 876 KB Output is correct
9 Correct 39 ms 1772 KB Output is correct
10 Correct 22 ms 1132 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 13 ms 876 KB Output is correct
27 Correct 31 ms 1644 KB Output is correct
28 Correct 47 ms 1900 KB Output is correct
29 Correct 147 ms 1772 KB Output is correct
30 Correct 169 ms 1900 KB Output is correct
31 Correct 32 ms 1644 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 29 ms 1004 KB Output is correct
34 Correct 43 ms 1772 KB Output is correct
35 Correct 6 ms 492 KB Output is correct
36 Correct 27 ms 1260 KB Output is correct
37 Correct 41 ms 1388 KB Output is correct
38 Correct 46 ms 1772 KB Output is correct
39 Correct 13 ms 876 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 135 ms 1644 KB Output is correct
42 Correct 51 ms 1900 KB Output is correct
43 Correct 83 ms 1644 KB Output is correct
44 Correct 50 ms 1772 KB Output is correct
45 Correct 43 ms 1900 KB Output is correct
46 Correct 154 ms 1752 KB Output is correct
47 Correct 37 ms 1644 KB Output is correct
48 Correct 67 ms 1644 KB Output is correct
49 Correct 46 ms 1644 KB Output is correct
50 Correct 669 ms 1772 KB Output is correct
51 Correct 706 ms 2028 KB Output is correct
52 Correct 657 ms 1772 KB Output is correct
53 Correct 710 ms 1900 KB Output is correct
54 Correct 654 ms 1772 KB Output is correct
55 Correct 739 ms 2028 KB Output is correct
56 Correct 633 ms 1900 KB Output is correct

Subtask #6
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 30 ms 1260 KB Output is correct
10 Correct 7 ms 620 KB Output is correct
11 Correct 18 ms 1004 KB Output is correct
12 Correct 21 ms 1004 KB Output is correct
13 Correct 24 ms 1132 KB Output is correct
14 Correct 16 ms 876 KB Output is correct
15 Correct 4 ms 492 KB Output is correct
16 Correct 16 ms 876 KB Output is correct
17 Correct 39 ms 1772 KB Output is correct
18 Correct 22 ms 1132 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 13 ms 876 KB Output is correct
35 Correct 31 ms 1644 KB Output is correct
36 Correct 47 ms 1900 KB Output is correct
37 Correct 147 ms 1772 KB Output is correct
38 Correct 169 ms 1900 KB Output is correct
39 Correct 32 ms 1644 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 29 ms 1004 KB Output is correct
42 Correct 43 ms 1772 KB Output is correct
43 Correct 6 ms 492 KB Output is correct
44 Correct 27 ms 1260 KB Output is correct
45 Correct 41 ms 1388 KB Output is correct
46 Correct 46 ms 1772 KB Output is correct
47 Correct 13 ms 876 KB Output is correct
48 Correct 2 ms 364 KB Output is correct
49 Correct 135 ms 1644 KB Output is correct
50 Correct 51 ms 1900 KB Output is correct
51 Correct 83 ms 1644 KB Output is correct
52 Correct 50 ms 1772 KB Output is correct
53 Correct 43 ms 1900 KB Output is correct
54 Correct 154 ms 1752 KB Output is correct
55 Correct 37 ms 1644 KB Output is correct
56 Correct 67 ms 1644 KB Output is correct
57 Correct 46 ms 1644 KB Output is correct
58 Correct 669 ms 1772 KB Output is correct
59 Correct 706 ms 2028 KB Output is correct
60 Correct 657 ms 1772 KB Output is correct
61 Correct 710 ms 1900 KB Output is correct
62 Correct 654 ms 1772 KB Output is correct
63 Correct 739 ms 2028 KB Output is correct
64 Correct 633 ms 1900 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Correct 1 ms 400 KB Output is correct
67 Correct 702 ms 2156 KB Output is correct
68 Correct 692 ms 2176 KB Output is correct
69 Correct 600 ms 1768 KB Output is correct
70 Correct 672 ms 2008 KB Output is correct
71 Correct 674 ms 2028 KB Output is correct
72 Correct 648 ms 1964 KB Output is correct
73 Correct 638 ms 1900 KB Output is correct
74 Correct 687 ms 2028 KB Output is correct
75 Correct 662 ms 2028 KB Output is correct
76 Correct 697 ms 2156 KB Output is correct
77 Correct 121 ms 2028 KB Output is correct
78 Correct 50 ms 1960 KB Output is correct
79 Correct 84 ms 1772 KB Output is correct
80 Correct 88 ms 1900 KB Output is correct
81 Correct 82 ms 1772 KB Output is correct
82 Correct 73 ms 2028 KB Output is correct
83 Correct 63 ms 1900 KB Output is correct
84 Correct 418 ms 2156 KB Output is correct
85 Correct 740 ms 2156 KB Output is correct
86 Correct 2 ms 364 KB Output is correct
87 Correct 1 ms 364 KB Output is correct
88 Correct 741 ms 2156 KB Output is correct
89 Correct 140 ms 748 KB Output is correct
90 Correct 1 ms 364 KB Output is correct