oj.uz

Submission #378543

# Submission time Handle Problem Language Result Execution time Memory
378543 2021-03-17T01:39:11 Z 8e7 Chessboard (IZhO18_chessboard) C++14
70 / 100
 204 ms 2664 KB 
//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
#define ll long long
#define maxn 100005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
using namespace std;
struct rect{
	int x1, y1, x2, y2;
	rect() {
		x1 = 0, y1 = 0, x2 = 0, y2 = 0;
	}
	rect(int a, int b, int c, int d) {
		x1 = a, y1 = b, x2 = c, y2 = d;
	}
};
vector<rect> v;

ll solve(ll n, ll len) {
	ll val = 0, block = n / len;
	for (int i = 0;i < block;i++) {
		val += len * len * (block / 2 + (block % 2 && i % 2 ? 1 : 0));
	}
	for (rect a:v) {
		val += (a.x1 / len + a.y1 / len) % 2 ? -1 : 1;
	}
	val = min(val, n * n - val);
	//cout << len << " " << val << endl;
	return val;
}
int main() {
	io
	ll n, k;
	cin >> n >> k;
	for (int i = 0;i < k;i++) {
		ll x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		x1--, y1--, x2--, y2--;
		v.push_back(rect(x1, y1, x2, y2));
	}
	ll ans = 1LL<<60;
	for (ll i = 1;i * i <= n;i++) {
		if (n % i == 0) {
			ans = min(ans, solve(n, i));
			if (i * i != n && i != 1) {
				ans = min(ans, solve(n, n / i));
			}
		}
	}
	cout << ans << endl;
}
/*
2 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
 */

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory 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 0 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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 1800 KB Output is correct
2 Correct 7 ms 1008 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 18 ms 1516 KB Output is correct
5 Correct 22 ms 1516 KB Output is correct
6 Correct 14 ms 1664 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 16 ms 1516 KB Output is correct
9 Correct 37 ms 2536 KB Output is correct
10 Correct 20 ms 1672 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory 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 492 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

# Verdict Execution time Memory 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 492 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 10 ms 1008 KB Output is correct
17 Correct 29 ms 2536 KB Output is correct
18 Correct 37 ms 2536 KB Output is correct
19 Correct 57 ms 2536 KB Output is correct
20 Correct 64 ms 2536 KB Output is correct
21 Correct 28 ms 2536 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 18 ms 1516 KB Output is correct
24 Correct 33 ms 2536 KB Output is correct
25 Correct 4 ms 748 KB Output is correct
26 Correct 21 ms 1516 KB Output is correct
27 Correct 27 ms 2536 KB Output is correct
28 Correct 38 ms 2536 KB Output is correct
29 Correct 12 ms 1516 KB Output is correct
30 Correct 2 ms 492 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 1800 KB Output is correct
2 Correct 7 ms 1008 KB Output is correct
3 Correct 16 ms 1516 KB Output is correct
4 Correct 18 ms 1516 KB Output is correct
5 Correct 22 ms 1516 KB Output is correct
6 Correct 14 ms 1664 KB Output is correct
7 Correct 4 ms 620 KB Output is correct
8 Correct 16 ms 1516 KB Output is correct
9 Correct 37 ms 2536 KB Output is correct
10 Correct 20 ms 1672 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 492 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 10 ms 1008 KB Output is correct
27 Correct 29 ms 2536 KB Output is correct
28 Correct 37 ms 2536 KB Output is correct
29 Correct 57 ms 2536 KB Output is correct
30 Correct 64 ms 2536 KB Output is correct
31 Correct 28 ms 2536 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 18 ms 1516 KB Output is correct
34 Correct 33 ms 2536 KB Output is correct
35 Correct 4 ms 748 KB Output is correct
36 Correct 21 ms 1516 KB Output is correct
37 Correct 27 ms 2536 KB Output is correct
38 Correct 38 ms 2536 KB Output is correct
39 Correct 12 ms 1516 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 57 ms 2536 KB Output is correct
42 Correct 39 ms 2536 KB Output is correct
43 Correct 44 ms 2536 KB Output is correct
44 Correct 39 ms 2536 KB Output is correct
45 Correct 39 ms 2536 KB Output is correct
46 Correct 63 ms 2536 KB Output is correct
47 Correct 35 ms 2536 KB Output is correct
48 Correct 42 ms 2536 KB Output is correct
49 Correct 38 ms 2536 KB Output is correct
50 Correct 183 ms 2536 KB Output is correct
51 Correct 195 ms 2536 KB Output is correct
52 Correct 182 ms 2536 KB Output is correct
53 Correct 194 ms 2536 KB Output is correct
54 Correct 182 ms 2536 KB Output is correct
55 Correct 204 ms 2664 KB Output is correct
56 Correct 173 ms 2536 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory 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 0 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 26 ms 1800 KB Output is correct
10 Correct 7 ms 1008 KB Output is correct
11 Correct 16 ms 1516 KB Output is correct
12 Correct 18 ms 1516 KB Output is correct
13 Correct 22 ms 1516 KB Output is correct
14 Correct 14 ms 1664 KB Output is correct
15 Correct 4 ms 620 KB Output is correct
16 Correct 16 ms 1516 KB Output is correct
17 Correct 37 ms 2536 KB Output is correct
18 Correct 20 ms 1672 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 492 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 10 ms 1008 KB Output is correct
35 Correct 29 ms 2536 KB Output is correct
36 Correct 37 ms 2536 KB Output is correct
37 Correct 57 ms 2536 KB Output is correct
38 Correct 64 ms 2536 KB Output is correct
39 Correct 28 ms 2536 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 18 ms 1516 KB Output is correct
42 Correct 33 ms 2536 KB Output is correct
43 Correct 4 ms 748 KB Output is correct
44 Correct 21 ms 1516 KB Output is correct
45 Correct 27 ms 2536 KB Output is correct
46 Correct 38 ms 2536 KB Output is correct
47 Correct 12 ms 1516 KB Output is correct
48 Correct 2 ms 492 KB Output is correct
49 Correct 57 ms 2536 KB Output is correct
50 Correct 39 ms 2536 KB Output is correct
51 Correct 44 ms 2536 KB Output is correct
52 Correct 39 ms 2536 KB Output is correct
53 Correct 39 ms 2536 KB Output is correct
54 Correct 63 ms 2536 KB Output is correct
55 Correct 35 ms 2536 KB Output is correct
56 Correct 42 ms 2536 KB Output is correct
57 Correct 38 ms 2536 KB Output is correct
58 Correct 183 ms 2536 KB Output is correct
59 Correct 195 ms 2536 KB Output is correct
60 Correct 182 ms 2536 KB Output is correct
61 Correct 194 ms 2536 KB Output is correct
62 Correct 182 ms 2536 KB Output is correct
63 Correct 204 ms 2664 KB Output is correct
64 Correct 173 ms 2536 KB Output is correct
65 Correct 0 ms 364 KB Output is correct
66 Incorrect 1 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -