oj.uz

Submission #343848

# Submission time Handle Problem Language Result Execution time Memory
343848 2021-01-04T14:55:47 Z _ani Chessboard (IZhO18_chessboard) C++17
100 / 100
 1507 ms 4724 KB 
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
using ll = long long;
struct el {
	ll a, b, c, d;
};
vector<ll> dv;
vector<el> points;
ll ans;
ll prefans(ll x, ll y, ll k, int f)
{
	ll ans;
	ll ab = y / k, a;
	a = (ab + 1) / 2;
	a *= k;
	if (ab % 2 == 0)
		a += y % k;
	if (x <= k)
		ans = x * a;
	else
	{
		ll aa = y - a;
		ll q = x / k;
		ans = aa * (q / 2) * k;
		ans += a * ((q + 1) / 2) * k;
		if (q % 2)
			ans += aa * (x % k);
		else ans += a * (x % k);
	}
	if (f == 1)
		return ans;
	else return x * y - ans;
}
ll Paint(ll x, ll y, ll d, int f) {
	return prefans(x, y, d, f) - (x * y - prefans(x, y, d, f));
}
int main()
{
	ll n, k;
	cin >> n >> k;
	ans = n * n;
	for (int i = 1; i < n; i++)
		if (n % i == 0)dv.push_back(i);
	for (int i = 0; i < k; i++)
	{
		ll a, b, c, d;
		cin >> a >> b >> c >> d;
		points.push_back({ a,b,c,d });
	}/*
	for (auto p : points)
		cerr << p.first << ' ' << p.second << '\n';*/
	for (ll d : dv)
	{
		ll blackans;
		ll q = n / d;
		if (q % 2)
			blackans = (n * n - d * d) / 2 + d * d;
		else blackans = n * n / 2;
		ll whiteans = n * n - blackans;
		for (auto p : points)
		{
			blackans += Paint(p.c, p.d, d, 0) - Paint(p.a - 1, p.d, d, 0) - Paint(p.c, p.b - 1, d, 0) + Paint(p.a - 1, p.b - 1, d, 0);
			whiteans += Paint(p.c, p.d, d, 1) - Paint(p.a - 1, p.d, d, 1) - Paint(p.c, p.b - 1, d, 1) + Paint(p.a - 1, p.b - 1, d, 1);
		}
		ans = min(ans, min(blackans, whiteans));
	}
	cout << ans;
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 364 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 364 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 2528 KB Output is correct
2 Correct 21 ms 1508 KB Output is correct
3 Correct 53 ms 2528 KB Output is correct
4 Correct 54 ms 2528 KB Output is correct
5 Correct 80 ms 2548 KB Output is correct
6 Correct 47 ms 2528 KB Output is correct
7 Correct 10 ms 748 KB Output is correct
8 Correct 47 ms 2528 KB Output is correct
9 Correct 120 ms 4724 KB Output is correct
10 Correct 67 ms 2528 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 384 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 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 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 2 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 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 384 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 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 2 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 2 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 35 ms 1508 KB Output is correct
17 Correct 91 ms 4572 KB Output is correct
18 Correct 127 ms 4572 KB Output is correct
19 Correct 321 ms 4572 KB Output is correct
20 Correct 349 ms 4572 KB Output is correct
21 Correct 90 ms 4516 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 71 ms 2684 KB Output is correct
24 Correct 114 ms 4604 KB Output is correct
25 Correct 15 ms 1000 KB Output is correct
26 Correct 71 ms 2528 KB Output is correct
27 Correct 100 ms 4572 KB Output is correct
28 Correct 125 ms 4572 KB Output is correct
29 Correct 36 ms 2528 KB Output is correct
30 Correct 4 ms 492 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 83 ms 2528 KB Output is correct
2 Correct 21 ms 1508 KB Output is correct
3 Correct 53 ms 2528 KB Output is correct
4 Correct 54 ms 2528 KB Output is correct
5 Correct 80 ms 2548 KB Output is correct
6 Correct 47 ms 2528 KB Output is correct
7 Correct 10 ms 748 KB Output is correct
8 Correct 47 ms 2528 KB Output is correct
9 Correct 120 ms 4724 KB Output is correct
10 Correct 67 ms 2528 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 2 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 2 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 2 ms 364 KB Output is correct
24 Correct 2 ms 364 KB Output is correct
25 Correct 2 ms 364 KB Output is correct
26 Correct 35 ms 1508 KB Output is correct
27 Correct 91 ms 4572 KB Output is correct
28 Correct 127 ms 4572 KB Output is correct
29 Correct 321 ms 4572 KB Output is correct
30 Correct 349 ms 4572 KB Output is correct
31 Correct 90 ms 4516 KB Output is correct
32 Correct 2 ms 364 KB Output is correct
33 Correct 71 ms 2684 KB Output is correct
34 Correct 114 ms 4604 KB Output is correct
35 Correct 15 ms 1000 KB Output is correct
36 Correct 71 ms 2528 KB Output is correct
37 Correct 100 ms 4572 KB Output is correct
38 Correct 125 ms 4572 KB Output is correct
39 Correct 36 ms 2528 KB Output is correct
40 Correct 4 ms 492 KB Output is correct
41 Correct 315 ms 4572 KB Output is correct
42 Correct 147 ms 4572 KB Output is correct
43 Correct 202 ms 4712 KB Output is correct
44 Correct 141 ms 4572 KB Output is correct
45 Correct 131 ms 4572 KB Output is correct
46 Correct 342 ms 4572 KB Output is correct
47 Correct 117 ms 4624 KB Output is correct
48 Correct 175 ms 4700 KB Output is correct
49 Correct 131 ms 4700 KB Output is correct
50 Correct 1343 ms 4572 KB Output is correct
51 Correct 1441 ms 4572 KB Output is correct
52 Correct 1345 ms 4700 KB Output is correct
53 Correct 1469 ms 4572 KB Output is correct
54 Correct 1323 ms 4720 KB Output is correct
55 Correct 1481 ms 4572 KB Output is correct
56 Correct 1284 ms 4572 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 ms 364 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 364 KB Output is correct
9 Correct 83 ms 2528 KB Output is correct
10 Correct 21 ms 1508 KB Output is correct
11 Correct 53 ms 2528 KB Output is correct
12 Correct 54 ms 2528 KB Output is correct
13 Correct 80 ms 2548 KB Output is correct
14 Correct 47 ms 2528 KB Output is correct
15 Correct 10 ms 748 KB Output is correct
16 Correct 47 ms 2528 KB Output is correct
17 Correct 120 ms 4724 KB Output is correct
18 Correct 67 ms 2528 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 2 ms 364 KB Output is correct
23 Correct 2 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 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 2 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 2 ms 364 KB Output is correct
32 Correct 2 ms 364 KB Output is correct
33 Correct 2 ms 364 KB Output is correct
34 Correct 35 ms 1508 KB Output is correct
35 Correct 91 ms 4572 KB Output is correct
36 Correct 127 ms 4572 KB Output is correct
37 Correct 321 ms 4572 KB Output is correct
38 Correct 349 ms 4572 KB Output is correct
39 Correct 90 ms 4516 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 71 ms 2684 KB Output is correct
42 Correct 114 ms 4604 KB Output is correct
43 Correct 15 ms 1000 KB Output is correct
44 Correct 71 ms 2528 KB Output is correct
45 Correct 100 ms 4572 KB Output is correct
46 Correct 125 ms 4572 KB Output is correct
47 Correct 36 ms 2528 KB Output is correct
48 Correct 4 ms 492 KB Output is correct
49 Correct 315 ms 4572 KB Output is correct
50 Correct 147 ms 4572 KB Output is correct
51 Correct 202 ms 4712 KB Output is correct
52 Correct 141 ms 4572 KB Output is correct
53 Correct 131 ms 4572 KB Output is correct
54 Correct 342 ms 4572 KB Output is correct
55 Correct 117 ms 4624 KB Output is correct
56 Correct 175 ms 4700 KB Output is correct
57 Correct 131 ms 4700 KB Output is correct
58 Correct 1343 ms 4572 KB Output is correct
59 Correct 1441 ms 4572 KB Output is correct
60 Correct 1345 ms 4700 KB Output is correct
61 Correct 1469 ms 4572 KB Output is correct
62 Correct 1323 ms 4720 KB Output is correct
63 Correct 1481 ms 4572 KB Output is correct
64 Correct 1284 ms 4572 KB Output is correct
65 Correct 0 ms 364 KB Output is correct
66 Correct 1 ms 364 KB Output is correct
67 Correct 1387 ms 4552 KB Output is correct
68 Correct 1393 ms 4572 KB Output is correct
69 Correct 1255 ms 4540 KB Output is correct
70 Correct 1375 ms 4572 KB Output is correct
71 Correct 1346 ms 4572 KB Output is correct
72 Correct 1334 ms 4700 KB Output is correct
73 Correct 1270 ms 4572 KB Output is correct
74 Correct 1354 ms 4572 KB Output is correct
75 Correct 1355 ms 4572 KB Output is correct
76 Correct 1425 ms 4572 KB Output is correct
77 Correct 282 ms 4572 KB Output is correct
78 Correct 138 ms 4648 KB Output is correct
79 Correct 204 ms 4628 KB Output is correct
80 Correct 220 ms 4572 KB Output is correct
81 Correct 199 ms 4700 KB Output is correct
82 Correct 186 ms 4660 KB Output is correct
83 Correct 153 ms 4700 KB Output is correct
84 Correct 855 ms 4572 KB Output is correct
85 Correct 1430 ms 4648 KB Output is correct
86 Correct 2 ms 364 KB Output is correct
87 Correct 1 ms 364 KB Output is correct
88 Correct 1507 ms 4572 KB Output is correct
89 Correct 283 ms 1508 KB Output is correct
90 Correct 1 ms 364 KB Output is correct