oj.uz

Submission #555275

# Submission time Handle Problem Language Result Execution time Memory
555275 2022-04-30T11:07:43 Z ngpin04 Chessboard (IZhO18_chessboard) C++14
70 / 100
 2000 ms 3408 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define TASK ""
#define ALL(x) (x).begin(), (x).end() 
using namespace std;
template <typename T1, typename T2> bool mini(T1 &a, T2 b) {
	if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maxi(T1 &a, T2 b) {
	if (a < b) {a = b; return true;} return false;
}
const int N = 1e5 + 5; 
const int oo = 1e9;
const long long ooo = 1e18;
const int mod = 1e9 + 7; // 998244353;
const long double pi = acos(-1);

pair <int, int> a[N], b[N];

int par[2 * N];
int lim[2 * N];
int n,k;

int getc(int i, int j, int l, int val) {
	return ((par[i] ^ par[j]) & 1) ^ val;
}

int getv(int i, int j, int l, int val) {
	return (getc(i, j, l, val) > 0) ? -1 : 1;
}

long long calc(int x, int y, int u, int v, int l, int val) {
	if (x > u || y > v)
		return 0;	

	long long res = 0;
	int dx = (u - x + 1);
	int dy = (v - y + 1);
	if (dx > dy)
		swap(dx, dy);

	if (dx < l) {
		if (dy < l) 
			res = (long long) dx * dy * getv(x, y, l, val);
		else {
			if (par[dy] & 1)
				res = (long long) dx * l * getv(x, y, l, val); 
		}
	} else {
		if (par[dx] & par[dy] & 1)
			res = (long long) l * l * getv(x, y, l, val);
	}
	return res;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	#ifdef ONLINE_JUDGE
	// freopen(TASK".inp","r",stdin);
	// freopen(TASK".out","w",stdout);
	#endif
	cin >> n >> k;

	for (int i = 1; i <= k; i++) {
		cin >> a[i].fi >> a[i].se >> b[i].fi >> b[i].se;
		a[i].fi--; a[i].se--;
		b[i].fi--; b[i].se--;
	}

	long long ans = ooo;
	for (int l = 1; l < n; l++) if (n % l == 0) 
	for (int val = 0; val < 2; val++) {
		int d = (n / l);
		long long res = ((1LL * d * d + val) >> 1) * l * l;
		for (int i = 0; i < 2 * n; i++) {
			par[i] = (i / l);
			lim[i] = par[i] * l;
		}

		for (int id = 1; id <= k; id++) {
			int x = a[id].fi;
			int y = a[id].se;
			int u = b[id].fi;
			int v = b[id].se;

			int i = lim[x + l - 1];
			int j = lim[y + l - 1];
			int s = lim[u + 1] - 1;
			int t = lim[v + 1] - 1;
			vector <pair <int, int>> r, c;
			if (par[x] == par[u])
				r.push_back(mp(x, u));
			else {
				r.push_back(mp(x, i - 1));
				r.push_back(mp(i, s));
				r.push_back(mp(s + 1, u));
			}
			if (par[y] == par[v])
				c.push_back(mp(y, v));
			else {
				c.push_back(mp(y, j - 1));
				c.push_back(mp(j, t));
				c.push_back(mp(t + 1, v));
			}

			for (pair <int, int> a : r)
			for (pair <int, int> b : c)
				res += calc(a.fi, b.fi, a.se, b.se, l, val);
		}
		// cerr << "split: " << l << " " << val << " " << res << "\n";
		mini(ans, res);
	}

	cout << ans;
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 2172 KB Output is correct
2 Correct 8 ms 820 KB Output is correct
3 Correct 19 ms 2224 KB Output is correct
4 Correct 18 ms 1096 KB Output is correct
5 Correct 27 ms 2072 KB Output is correct
6 Correct 15 ms 1640 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 16 ms 1604 KB Output is correct
9 Correct 37 ms 2216 KB Output is correct
10 Correct 23 ms 1672 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 356 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 16 ms 724 KB Output is correct
17 Correct 29 ms 1648 KB Output is correct
18 Correct 52 ms 1892 KB Output is correct
19 Correct 262 ms 1724 KB Output is correct
20 Correct 290 ms 1908 KB Output is correct
21 Correct 27 ms 1624 KB Output is correct
22 Correct 2 ms 340 KB Output is correct
23 Correct 45 ms 1004 KB Output is correct
24 Correct 48 ms 1736 KB Output is correct
25 Correct 9 ms 468 KB Output is correct
26 Correct 30 ms 1236 KB Output is correct
27 Correct 66 ms 1364 KB Output is correct
28 Correct 58 ms 1876 KB Output is correct
29 Correct 12 ms 852 KB Output is correct
30 Correct 3 ms 340 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 2172 KB Output is correct
2 Correct 8 ms 820 KB Output is correct
3 Correct 19 ms 2224 KB Output is correct
4 Correct 18 ms 1096 KB Output is correct
5 Correct 27 ms 2072 KB Output is correct
6 Correct 15 ms 1640 KB Output is correct
7 Correct 4 ms 724 KB Output is correct
8 Correct 16 ms 1604 KB Output is correct
9 Correct 37 ms 2216 KB Output is correct
10 Correct 23 ms 1672 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 356 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 16 ms 724 KB Output is correct
27 Correct 29 ms 1648 KB Output is correct
28 Correct 52 ms 1892 KB Output is correct
29 Correct 262 ms 1724 KB Output is correct
30 Correct 290 ms 1908 KB Output is correct
31 Correct 27 ms 1624 KB Output is correct
32 Correct 2 ms 340 KB Output is correct
33 Correct 45 ms 1004 KB Output is correct
34 Correct 48 ms 1736 KB Output is correct
35 Correct 9 ms 468 KB Output is correct
36 Correct 30 ms 1236 KB Output is correct
37 Correct 66 ms 1364 KB Output is correct
38 Correct 58 ms 1876 KB Output is correct
39 Correct 12 ms 852 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Correct 304 ms 3172 KB Output is correct
42 Correct 71 ms 3328 KB Output is correct
43 Correct 163 ms 3276 KB Output is correct
44 Correct 67 ms 3276 KB Output is correct
45 Correct 42 ms 3408 KB Output is correct
46 Correct 340 ms 3324 KB Output is correct
47 Correct 40 ms 3156 KB Output is correct
48 Correct 115 ms 3236 KB Output is correct
49 Correct 62 ms 3196 KB Output is correct
50 Correct 1615 ms 3048 KB Output is correct
51 Correct 1679 ms 3132 KB Output is correct
52 Correct 1606 ms 3032 KB Output is correct
53 Correct 1701 ms 3120 KB Output is correct
54 Correct 1653 ms 3012 KB Output is correct
55 Correct 1729 ms 3188 KB Output is correct
56 Correct 1526 ms 3020 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 31 ms 2172 KB Output is correct
10 Correct 8 ms 820 KB Output is correct
11 Correct 19 ms 2224 KB Output is correct
12 Correct 18 ms 1096 KB Output is correct
13 Correct 27 ms 2072 KB Output is correct
14 Correct 15 ms 1640 KB Output is correct
15 Correct 4 ms 724 KB Output is correct
16 Correct 16 ms 1604 KB Output is correct
17 Correct 37 ms 2216 KB Output is correct
18 Correct 23 ms 1672 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 356 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 340 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 16 ms 724 KB Output is correct
35 Correct 29 ms 1648 KB Output is correct
36 Correct 52 ms 1892 KB Output is correct
37 Correct 262 ms 1724 KB Output is correct
38 Correct 290 ms 1908 KB Output is correct
39 Correct 27 ms 1624 KB Output is correct
40 Correct 2 ms 340 KB Output is correct
41 Correct 45 ms 1004 KB Output is correct
42 Correct 48 ms 1736 KB Output is correct
43 Correct 9 ms 468 KB Output is correct
44 Correct 30 ms 1236 KB Output is correct
45 Correct 66 ms 1364 KB Output is correct
46 Correct 58 ms 1876 KB Output is correct
47 Correct 12 ms 852 KB Output is correct
48 Correct 3 ms 340 KB Output is correct
49 Correct 304 ms 3172 KB Output is correct
50 Correct 71 ms 3328 KB Output is correct
51 Correct 163 ms 3276 KB Output is correct
52 Correct 67 ms 3276 KB Output is correct
53 Correct 42 ms 3408 KB Output is correct
54 Correct 340 ms 3324 KB Output is correct
55 Correct 40 ms 3156 KB Output is correct
56 Correct 115 ms 3236 KB Output is correct
57 Correct 62 ms 3196 KB Output is correct
58 Correct 1615 ms 3048 KB Output is correct
59 Correct 1679 ms 3132 KB Output is correct
60 Correct 1606 ms 3032 KB Output is correct
61 Correct 1701 ms 3120 KB Output is correct
62 Correct 1653 ms 3012 KB Output is correct
63 Correct 1729 ms 3188 KB Output is correct
64 Correct 1526 ms 3020 KB Output is correct
65 Correct 0 ms 340 KB Output is correct
66 Correct 0 ms 340 KB Output is correct
67 Execution timed out 2086 ms 3048 KB Time limit exceeded
68 Halted 0 ms 0 KB -