oj.uz

Submission #739693

# Submission time Handle Problem Language Result Execution time Memory
739693 2023-05-11T04:11:52 Z scanhex Game (IOI13_game) C++17
80 / 100
 7289 ms 256000 KB 
#include <bits/stdc++.h>
 
using namespace std;
typedef long long nagai;
 
#include "game.h"
 
//pizda 
 
template<typename T> 
class fake_ptr {
private:
	uint32_t null = -1;
public:
	static vector<T>& mem() {
		static vector<T> mem_;
		return mem_;
	}
	static void reserve(int cnt) {
		mem().reserve(cnt);
	}
	static fake_ptr make() {
		mem().push_back({});
		return fake_ptr{static_cast<uint32_t>(mem().size() - 1)};
	}
	fake_ptr() : arr_ind{null} {}
	explicit fake_ptr(uint32_t arr_ind) : arr_ind{arr_ind} {};
	T* operator ->() {
		assert(arr_ind != null);
		return &mem()[arr_ind];
	}
	fake_ptr& operator=(const fake_ptr& o) {
		arr_ind = o.arr_ind;
		return *this;
	}
	operator bool() {
		return arr_ind != null;
	}
	std::uint32_t arr_ind;
};
 
//template<typename T>
//vector<T> fake_ptr<T>::mem = {};
 
template<typename T>
fake_ptr<T> make_fake() {
	return fake_ptr<T>::make();
}
 
 
nagai gcd(nagai a, nagai b)
{
	while (b)
		a = a % b, swap(a, b);
	return a;
}
 
template<int H>
struct sl
{
	struct nd
	{
		vector<fake_ptr<nd>> ri;
		vector<nagai> gcd;
//		vector<int> len;
		pair<int, int> x;
		inline int sz()
		{
			return ri.size();
		}
	};
	fake_ptr<nd> header;
	sl() {
		header = make_fake<nd>();
		header->ri.resize(H, {});
		header->gcd.resize(H, 0);
		header->x = {-1, -1};
		//header->len.resize(H, 0);
	}
	fake_ptr<nd> last[H];
	int len[H];
	void go(pair<int, int> to)
	{
		fake_ptr<nd> cur = header;
		for (int i = H - 1; i >= 0; --i)
		{
			while (i < cur->ri.size() && cur->ri[i] && cur->ri[i]->x < to)
				cur = cur->ri[i];
			last[i] = cur;
		}
	}
	inline nagai calc(fake_ptr<nd> a, fake_ptr<nd> b, int i)
	{
		nagai g = a->gcd[i];
		while (!b && a->ri[i] || b && a->ri[i] && a->ri[i]->x < b->x)
			a = a->ri[i], g = gcd(g, a->gcd[i]);
		//cerr << a->x << ' ' << (b ? b->x : -2) << ' ' << i << ' ' << g << endl;
		return g;
	}
	void insert(pair<int, int> ind, nagai val)
	{
		go(ind);
		fake_ptr<nd> nw = make_fake<nd>();
		nw->x = ind;
		for (int i = 0, add = 1; i < H; add &= rand(), ++i)
		{
			if (add)
			{
				if (i > 0)
				{
					nagai g = calc(last[i], nw, i - 1);
					nagai g1 = calc(nw, last[i]->ri[i], i - 1);
					//cerr << "kek " << g << ' ' << last[i]->x << ' ' << last[i]->gcd[i - 1] << endl;
					last[i]->gcd[i] = g;
					nw->gcd.push_back(g1);
				}
				else
					nw->gcd.push_back(val);
				nw->ri.push_back(last[i]->ri[i]);
				last[i]->ri[i] = nw;
			}
			else
			{
				last[i]->gcd[i] = gcd(last[i]->gcd[i], val);
			}
		}
	}
	void erase(pair<int, int> ind)
	{
		go(ind);
		for (int i = 0; i < H; ++i)
		{
			if (last[i]->ri[i] && last[i]->ri[i]->x == ind)
			{
				if (i)
					last[i]->gcd[i] = calc(last[i], last[i]->ri[i]->ri[i], i - 1);
				last[i]->ri[i] = last[i]->ri[i]->ri[i];
			}
			else
				last[i]->gcd[i] = calc(last[i], last[i]->ri[i], i - 1);
		}
	}
	void print()
	{
		for (int i = 0; i < H; ++i)
		{
			auto v = header;
			while (v)
				cerr << '{' << v->x.first << ',' << v->x.second << '}' << ',' << v->gcd[i] << ' ', v = v->ri[i];
			cerr << endl;
		}
	}
	nagai get(pair<int, int> l, pair<int, int> r)
	{
		nagai g = 0;
		go(l);
		fake_ptr<nd> kek = last[0]->ri[0];
		if (!kek)
			return 0;
		//cerr << kek->x.first << ' ' << kek->x.second << endl;
		for (int i = 0; i < H; ++i)
			while (i < kek->sz() && i + 1 >= kek->sz() && kek->ri[i] && kek->ri[i]->x < r)
				g = gcd(g, kek->gcd[i]), kek = kek->ri[i];
		//cerr << kek->x.first << ' ' << kek->x.second << ' ' << g << endl;
		for (int i = H - 1; i >= 0; --i)
			while (i < kek->sz() && kek->ri[i] && kek->ri[i]->x < r)
				g = gcd(g, kek->gcd[i]), kek = kek->ri[i];
		//cerr << kek->x.first << ' ' << kek->x.second << ' ' << g << endl;
		if (kek->x < r)
			g = gcd(g, kek->gcd[0]);
		return g;
	}
};
 
struct nd
{
	nd* le;
	nd* ri;
	sl<18> skip;
	nd() 
		: le(nullptr), ri(nullptr)
	{}
	void children()
	{
		if (!le)
			le = new nd();
		if (!ri)
			ri = new nd();
	}
	void add(int l, int r, int x, int y, nagai val, bool add)
	{
		if (l > x || r <= x)
			return;
		if (add)
			skip.insert({y, x}, val);
		else
			skip.erase({y, x});
		if (r - l == 1)
			return;
		children();
		int m = (l + r) / 2;
		le->add(l, m, x, y, val, add);
		ri->add(m, r, x, y, val, add);
	}
	nagai get(int l, int r, int ql1, int qr1, int ql2, int qr2)
	{
		//skip.print();
		if (l >= qr1 || ql1 >= r)
			return 0;
		if (ql1 <= l && r <= qr1)
			return skip.get({ql2, ql1}, {qr2, ql1});
		if (!le && !ri) 
			return 0;
		int m = (l + r) / 2;
		if (!le) 
			return ri->get(m, r, ql1, qr1, ql2, qr2);
		if (!ri) 
			return le->get(l, m, ql1, qr1, ql2, qr2);
		return gcd(le->get(l, m, ql1, qr1, ql2, qr2),
				ri->get(m, r, ql1, qr1, ql2, qr2));
	}
};
 
nd* rt = new nd;
 
int MX = 1000000010;
set<pair<int, int>> p;
 
void init(int R, int C)
{
	MX = R;
}
 
void update(int x, int y, long long t)
{
	if (p.count({x, y}))
		rt->add(0, MX, x, y, t, 0);
	rt->add(0, MX, x, y, t, 1);
	p.insert({x, y});
}
 
long long calculate(int xl, int yl, int xr, int yr)
{
    return rt->get(0, MX, xl, xr + 1, yl, yr + 1);
}

Compilation message

game.cpp: In instantiation of 'void sl<H>::go(std::pair<int, int>) [with int H = 18]':
game.cpp:102:3:   required from 'void sl<H>::insert(std::pair<int, int>, nagai) [with int H = 18; nagai = long long int]'
game.cpp:195:27:   required from here
game.cpp:87:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<fake_ptr<sl<18>::nd>, std::allocator<fake_ptr<sl<18>::nd> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   87 |    while (i < cur->ri.size() && cur->ri[i] && cur->ri[i]->x < to)
      |           ~~^~~~~~~~~~~~~~~~
game.cpp: In instantiation of 'nagai sl<H>::calc(fake_ptr<sl<H>::nd>, fake_ptr<sl<H>::nd>, int) [with int H = 18; nagai = long long int]':
game.cpp:111:16:   required from 'void sl<H>::insert(std::pair<int, int>, nagai) [with int H = 18; nagai = long long int]'
game.cpp:195:27:   required from here
game.cpp:95:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   95 |   while (!b && a->ri[i] || b && a->ri[i] && a->ri[i]->x < b->x)
      |          ~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 212 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1025 ms 11460 KB Output is correct
5 Correct 543 ms 11620 KB Output is correct
6 Correct 757 ms 8456 KB Output is correct
7 Correct 955 ms 8212 KB Output is correct
8 Correct 512 ms 5776 KB Output is correct
9 Correct 878 ms 8276 KB Output is correct
10 Correct 872 ms 7960 KB Output is correct
11 Correct 0 ms 212 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 424 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 2 ms 468 KB Output is correct
10 Correct 1 ms 432 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 2273 ms 21216 KB Output is correct
13 Correct 3981 ms 17732 KB Output is correct
14 Correct 824 ms 17280 KB Output is correct
15 Correct 4310 ms 20240 KB Output is correct
16 Correct 422 ms 20372 KB Output is correct
17 Correct 1581 ms 12636 KB Output is correct
18 Correct 3612 ms 20688 KB Output is correct
19 Correct 2704 ms 20872 KB Output is correct
20 Correct 2808 ms 20208 KB Output is correct
21 Correct 1 ms 212 KB Output is correct

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 2 ms 432 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 994 ms 11432 KB Output is correct
13 Correct 579 ms 11684 KB Output is correct
14 Correct 750 ms 8412 KB Output is correct
15 Correct 1067 ms 8128 KB Output is correct
16 Correct 551 ms 5692 KB Output is correct
17 Correct 1045 ms 8204 KB Output is correct
18 Correct 1032 ms 7960 KB Output is correct
19 Correct 2580 ms 21172 KB Output is correct
20 Correct 4507 ms 17636 KB Output is correct
21 Correct 824 ms 17368 KB Output is correct
22 Correct 4381 ms 20120 KB Output is correct
23 Correct 459 ms 20284 KB Output is correct
24 Correct 1604 ms 12660 KB Output is correct
25 Correct 3628 ms 20792 KB Output is correct
26 Correct 2691 ms 21052 KB Output is correct
27 Correct 2781 ms 20476 KB Output is correct
28 Correct 1887 ms 249728 KB Output is correct
29 Correct 3613 ms 252600 KB Output is correct
30 Correct 7287 ms 156020 KB Output is correct
31 Correct 6605 ms 130096 KB Output is correct
32 Correct 1444 ms 49412 KB Output is correct
33 Correct 1928 ms 50984 KB Output is correct
34 Correct 812 ms 249356 KB Output is correct
35 Correct 2315 ms 130784 KB Output is correct
36 Correct 5523 ms 249752 KB Output is correct
37 Correct 3974 ms 249976 KB Output is correct
38 Correct 4145 ms 249532 KB Output is correct
39 Correct 3147 ms 194404 KB Output is correct
40 Correct 1 ms 212 KB Output is correct

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 296 KB Output is correct
2 Correct 2 ms 468 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 468 KB Output is correct
7 Correct 1 ms 304 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 961 ms 11476 KB Output is correct
13 Correct 512 ms 11868 KB Output is correct
14 Correct 752 ms 8480 KB Output is correct
15 Correct 882 ms 8264 KB Output is correct
16 Correct 495 ms 5832 KB Output is correct
17 Correct 843 ms 8420 KB Output is correct
18 Correct 883 ms 8008 KB Output is correct
19 Correct 2246 ms 21492 KB Output is correct
20 Correct 3898 ms 18052 KB Output is correct
21 Correct 845 ms 17432 KB Output is correct
22 Correct 4294 ms 20404 KB Output is correct
23 Correct 410 ms 20492 KB Output is correct
24 Correct 1517 ms 12772 KB Output is correct
25 Correct 3566 ms 20956 KB Output is correct
26 Correct 2751 ms 21192 KB Output is correct
27 Correct 2701 ms 20532 KB Output is correct
28 Correct 1861 ms 249504 KB Output is correct
29 Correct 3689 ms 252540 KB Output is correct
30 Correct 7289 ms 155760 KB Output is correct
31 Correct 6558 ms 129576 KB Output is correct
32 Correct 1440 ms 48880 KB Output is correct
33 Correct 1948 ms 50552 KB Output is correct
34 Correct 811 ms 248892 KB Output is correct
35 Correct 2807 ms 130188 KB Output is correct
36 Correct 5862 ms 249420 KB Output is correct
37 Correct 4439 ms 249552 KB Output is correct
38 Correct 4867 ms 248892 KB Output is correct
39 Runtime error 883 ms 256000 KB Execution killed with signal 9
40 Halted 0 ms 0 KB -