oj.uz

Submission #885322

# Submission time Handle Problem Language Result Execution time Memory
885322 2023-12-09T12:59:51 Z Mirali7 Colouring a rectangle (eJOI19_colouring) C++17
100 / 100
 464 ms 38424 KB 
//Picazo https://infoarena.ro/problema/picazo
#include <iostream>
#include <string>
#include <deque>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <map>
#include <set>
#include <queue>
#include <fstream>
#include <stack>
#include <cmath>
#include <bitset>
#include <unordered_set>
#include <unordered_map>
#include <random>
#include <array>
#include <chrono>
#include <functional>
#include <numeric>
#include <complex>

using namespace std;

#define ll long long
#define ld long double
#define ull uint64_t
#define pll pair<ll, ll>
#define pii pair<int, int>
#define pli pair<ll, int>
#define plli pair<pll, int>
#define pld pair<ld, ld>
#define fst first
#define snd second
#define pdi pair<ld, int>
#define pdd pair<double, double>

#define forn(i, n) for (int i = 1; i <= n; i++)
#define dforn(i, a, b) for (int i = a; i <= b; i++) 
#define rforn(i, n) for (int i = n; i >= 1; i--)
#define rdforn(i, a, b) for (int i = b; i >= a; i--)
#define sforn(i, a, b, s) for (int i = a; i <= b; i += s)
#define aforn(v, a) for (auto& v : a)
#define sz(a) ((int)a.size())

const int mod = 1e9 + 7;
const ld pi = acos(-1);
const ll N = 1e6;
const ll inf = 3e18;
const int iinf = 1 << 28;
const ld dinf = 1e9;
const double eps = 1e-12;

template <typename T>
struct lazy_tree {
	vector<T> t, add;
	int n = 1;
	lazy_tree(int sn) {
		while (n < sn) n <<= 1;
		t.resize(2 * n), add.resize(2 * n);
	}
	void push(int v, int l, int r) {
		if (add[v] == 0) return;
		t[v] += add[v];
		if (r - l > 1) add[2 * v] += add[v], add[2 * v + 1] += add[v];
		add[v] = 0;
	}
	void seg_set(int x, int l, int r, int ql, int qr, T v) {
		push(x, l, r);
		if (r <= ql || qr <= l) return;
		if (ql <= l && r <= qr) add[x] += v, push(x, l, r);
		else {
			int m = (l + r) >> 1;
			seg_set(2 * x, l, m, ql, qr, v);
			seg_set(2 * x + 1, m, r, ql, qr, v);
			t[x] = min(t[2 * x], t[2 * x + 1]);
		}
	}
	void seg_set(int ql, int qr, T x) { seg_set(1, 0, n, ql, qr, x); }
	T query(int l, int r, int x, int lx, int rx) {
		push(x, lx, rx);
		if (l >= rx || r <= lx) return inf;
		if (lx >= l && rx <= r) return t[x];
		int m = (lx + rx) >> 1;
		return min(query(l, r, 2 * x, lx, m), query(l, r, 2 * x + 1, m, rx));
	}
	T query(int l, int r) { return query(l, r, 1, 0, n); }
};

void solve() {
	int m, n;
	cin >> m >> n;
	vector<ll> lr_cost(m + n - 1), rl_cost(m + n - 1);
	dforn(i, 0, m + n - 2) cin >> lr_cost[i];
	reverse(lr_cost.begin(), lr_cost.end());
	dforn(i, 0, m + n - 2) cin >> rl_cost[i];
	vector<pii> seg(m + n - 1); pii p1 = { 0, 0 }, p2 = { 0, 0 };
	dforn(i, 0, m + n - 2) {
		seg[i] = { p1.snd - p1.fst, p2.snd - p2.fst };
		if (p1.fst != m - 1) p1.fst++; else p1.snd++;
		if (p2.snd != n - 1) p2.snd++; else p2.fst++;
	}
	int buf = -(*min_element(seg.begin(), seg.end())).fst;
	dforn(i, 0, m + n - 2) seg[i].fst += buf, seg[i].snd += buf;
	auto calc = [&](vector<int> v1, vector<int> v2) {
		v1.insert(v1.begin(), -1);
		int n = sz(v1);
		vector<vector<pii>> right(n);
		dforn(i, 0, sz(v2) - 1) {
			int lb = lower_bound(v1.begin(), v1.end(), seg[v2[i]].fst) - v1.begin(), rb = lower_bound(v1.begin(), v1.end(), seg[v2[i]].snd) - v1.begin();
			right[rb].push_back({ lb, rl_cost[v2[i]] });
		}
		lazy_tree<ll> Tr(n);
		forn(i, sz(v1) - 1) {
			ll val = Tr.query(0, i); Tr.seg_set(i, i + 1, val);
			Tr.seg_set(0, i, lr_cost[v1[i]]);
			aforn(v, right[i])
				Tr.seg_set(v.fst, i + 1, v.snd);
		}
		return Tr.query(0, n);
	};
	vector<int> v1, v2;
	sforn(i, 0, m + n - 2, 2) v1.push_back(i);
	dforn(i, 0, m + n - 2) if (seg[i].fst % 2 == 0) v2.push_back(i);
	ll ans = calc(v1, v2);
	v1.clear(), v2.clear();
	sforn(i, 1, m + n - 2, 2) v1.push_back(i);
	dforn(i, 0, m + n - 2) if (seg[i].fst % 2 == 1) v2.push_back(i);
	ans += calc(v1, v2);
	cout << ans << '\n';
}

int main()
{
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int t = 1;
	//cin >> t;
	while (t--) solve();
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 512 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 512 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 388 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 360 KB Output is correct
29 Correct 0 ms 348 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 512 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 388 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 360 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 4 ms 604 KB Output is correct
31 Correct 4 ms 604 KB Output is correct
32 Correct 4 ms 604 KB Output is correct
33 Correct 3 ms 600 KB Output is correct
34 Correct 3 ms 604 KB Output is correct
35 Correct 2 ms 600 KB Output is correct
36 Correct 2 ms 600 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 2 ms 464 KB Output is correct
40 Correct 2 ms 604 KB Output is correct
41 Correct 2 ms 536 KB Output is correct
42 Correct 2 ms 600 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 190 ms 20540 KB Output is correct
2 Correct 179 ms 20368 KB Output is correct
3 Correct 186 ms 20788 KB Output is correct
4 Correct 187 ms 20808 KB Output is correct
5 Correct 177 ms 20880 KB Output is correct
6 Correct 181 ms 20236 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 448 ms 38424 KB Output is correct
2 Correct 436 ms 37556 KB Output is correct
3 Correct 455 ms 37304 KB Output is correct
4 Correct 450 ms 37896 KB Output is correct
5 Correct 464 ms 37852 KB Output is correct
6 Correct 433 ms 35000 KB Output is correct
7 Correct 443 ms 37052 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 460 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 452 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 600 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 512 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 388 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 344 KB Output is correct
28 Correct 0 ms 360 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 4 ms 604 KB Output is correct
31 Correct 4 ms 604 KB Output is correct
32 Correct 4 ms 604 KB Output is correct
33 Correct 3 ms 600 KB Output is correct
34 Correct 3 ms 604 KB Output is correct
35 Correct 2 ms 600 KB Output is correct
36 Correct 2 ms 600 KB Output is correct
37 Correct 2 ms 604 KB Output is correct
38 Correct 2 ms 604 KB Output is correct
39 Correct 2 ms 464 KB Output is correct
40 Correct 2 ms 604 KB Output is correct
41 Correct 2 ms 536 KB Output is correct
42 Correct 2 ms 600 KB Output is correct
43 Correct 190 ms 20540 KB Output is correct
44 Correct 179 ms 20368 KB Output is correct
45 Correct 186 ms 20788 KB Output is correct
46 Correct 187 ms 20808 KB Output is correct
47 Correct 177 ms 20880 KB Output is correct
48 Correct 181 ms 20236 KB Output is correct
49 Correct 448 ms 38424 KB Output is correct
50 Correct 436 ms 37556 KB Output is correct
51 Correct 455 ms 37304 KB Output is correct
52 Correct 450 ms 37896 KB Output is correct
53 Correct 464 ms 37852 KB Output is correct
54 Correct 433 ms 35000 KB Output is correct
55 Correct 443 ms 37052 KB Output is correct
56 Correct 190 ms 20096 KB Output is correct
57 Correct 183 ms 20112 KB Output is correct
58 Correct 186 ms 20380 KB Output is correct
59 Correct 178 ms 19148 KB Output is correct
60 Correct 215 ms 20612 KB Output is correct
61 Correct 189 ms 20392 KB Output is correct
62 Correct 205 ms 19268 KB Output is correct
63 Correct 217 ms 20396 KB Output is correct
64 Correct 207 ms 20668 KB Output is correct
65 Correct 233 ms 21316 KB Output is correct
66 Correct 263 ms 22588 KB Output is correct
67 Correct 282 ms 24128 KB Output is correct
68 Correct 438 ms 34900 KB Output is correct
69 Correct 450 ms 36536 KB Output is correct
70 Correct 339 ms 30952 KB Output is correct