Submission #955365

#	Time	Username	Problem	Language	Result	Execution time	Memory
955365		vjudge1	Food Court (JOI21_foodcourt)	C++17	100 / 100	574 ms	47844 KiB

foodcourt

// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #include <x86intrin.h>

#include <bits/stdc++.h>
#include <chrono>
#include <random>

// @author: Vlapos

namespace operators
{
	template <typename T1, typename T2>
	std::istream &operator>>(std::istream &in, std::pair<T1, T2> &x)
	{
		in >> x.first >> x.second;
		return in;
	}

	template <typename T1, typename T2>
	std::ostream &operator<<(std::ostream &out, std::pair<T1, T2> x)
	{
		out << x.first << " " << x.second;
		return out;
	}

	template <typename T1>
	std::istream &operator>>(std::istream &in, std::vector<T1> &x)
	{
		for (auto &i : x)
			in >> i;
		return in;
	}

	template <typename T1>
	std::ostream &operator<<(std::ostream &out, std::vector<T1> &x)
	{
		for (auto &i : x)
			out << i << " ";
		return out;
	}

	template <typename T1>
	std::ostream &operator<<(std::ostream &out, std::set<T1> &x)
	{
		for (auto &i : x)
			out << i << " ";
		return out;
	}
}

// name spaces
using namespace std;
using namespace operators;
// end of name spaces

// defines
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define f first
#define s second
#define uint unsigned int
#define all(vc) vc.begin(), vc.end()
// end of defines

// usefull stuff

void boost()
{
	ios_base ::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
}

inline int getbit(int &x, int &bt) { return (x >> bt) & 1; }

const int dx4[4] = {-1, 0, 0, 1};
const int dy4[4] = {0, -1, 1, 0};
const int dx8[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
const int dy8[8] = {-1, -0, 1, -1, 1, -1, 0, 1};

const ll INF = (1e17) + 500;
const int BIG = (1e9) * 2 + 100;
const int MAXN = (1e5) + 5;
const int MOD7 = (1e9) + 7;
const int MOD9 = (1e9) + 9;
const uint MODFFT = 998244353;

#define int ll

struct segTree
{
	struct Node
	{
		int mx = 0, op = 0;
	};
	vector<Node> tree;
	int sz = 0;

	void init(int n)
	{
		sz = 1;
		while (sz < n)
			sz *= 2;
		tree.resize(2 * sz);
	}

	void upd(int v, int val)
	{
		tree[v].op += val;
		tree[v].mx += val;
	}

	void push(int v, int lv, int rv)
	{
		if (rv - lv == 1 or tree[v].op == 0)
			return;
		upd(v * 2 + 1, tree[v].op);
		upd(v * 2 + 2, tree[v].op);
		tree[v].op = 0;
	}

	void updSeg(int l, int r, int val, int v, int lv, int rv)
	{
		push(v, lv, rv);
		if (l <= lv and rv <= r)
		{
			upd(v, val);
			return;
		}
		if (rv <= l or r <= lv)
			return;
		int m = (lv + rv) >> 1;
		updSeg(l, r, val, v * 2 + 1, lv, m);
		updSeg(l, r, val, v * 2 + 2, m, rv);
		tree[v].mx = max(tree[v * 2 + 1].mx, tree[v * 2 + 2].mx);
	}

	void updSeg(int l, int r, int val)
	{
		updSeg(l, r, val, 0, 0, sz);
	}

	int getPos(int pos, int v, int lv, int rv)
	{
		push(v, lv, rv);
		if (rv - lv == 1)
			return tree[v].mx;
		int m = (lv + rv) >> 1;
		if (pos < m)
			return getPos(pos, v * 2 + 1, lv, m);
		return getPos(pos, v * 2 + 2, m, rv);
	}

	int getPos(int pos)
	{
		return getPos(pos, 0, 0, sz);
	}

	int getGoodPos(int v, int lv, int rv)
	{
		push(v, lv, rv);
		if (rv - lv == 1)
			return lv;
		int m = (lv + rv) >> 1;
		if (tree[v * 2 + 1].mx >= 0)
			return getGoodPos(v * 2 + 1, lv, m);
		return getGoodPos(v * 2 + 2, m, rv);
	}

	int getGoodPos()
	{
		return getGoodPos(0, 0, sz);
	}
};

struct segTreeBF
{
	struct Node
	{
		int add = 0, del = 0;
	};
	vector<Node> tree;
	int sz = 0;

	void init(int n)
	{
		sz = 1;
		while (sz < n)
			sz *= 2;
		tree.resize(2 * sz);
	}

	void upd(int v, int val)
	{
		if (tree[v].add + val >= 0)
			tree[v].add = tree[v].add + val;
		else
		{
			tree[v].del += tree[v].add + val;
			tree[v].add = 0;
		}
	}

	void push(int v, int lv, int rv)
	{
		if (rv - lv == 1 or (tree[v].add == 0 and tree[v].del == 0))
			return;
		upd(v * 2 + 1, tree[v].del);
		upd(v * 2 + 1, tree[v].add);
		upd(v * 2 + 2, tree[v].del);
		upd(v * 2 + 2, tree[v].add);
		tree[v].add = tree[v].del = 0;
	}

	void updSeg(int l, int r, int val, int v, int lv, int rv)
	{
		push(v, lv, rv);
		if (l <= lv and rv <= r)
		{
			upd(v, val);
			return;
		}
		if (rv <= l or r <= lv)
			return;
		int m = (lv + rv) >> 1;
		updSeg(l, r, val, v * 2 + 1, lv, m);
		updSeg(l, r, val, v * 2 + 2, m, rv);
	}

	void updSeg(int l, int r, int val)
	{
		updSeg(l, r, val, 0, 0, sz);
	}

	int getPos(int pos, int v, int lv, int rv)
	{
		push(v, lv, rv);
		if (rv - lv == 1)
		{
			return tree[v].add;
		}
		int m = (lv + rv) >> 1;
		if (pos < m)
			return getPos(pos, v * 2 + 1, lv, m);
		return getPos(pos, v * 2 + 2, m, rv);
	}

	int getPos(int pos)
	{
		return getPos(pos, 0, 0, sz);
	}
};

struct test
{
	void solve(int testcase)
	{
		boost();
		int n, m, q;
		cin >> n >> m >> q;
		int cntA = 0;
		vector<vector<pair<int, int>>> ops(n);

		vector<pair<pii, pii>> updates;
		segTreeBF bf1, bf2;
		vector<int> ans;
		bf1.init(n);
		bf2.init(n);
		for (int i = 0; i < q; ++i)
		{
			int tp;
			cin >> tp;
			if (tp == 1)
			{
				int l, r, c, k;
				cin >> l >> r >> c >> k;
				--l;
				updates.pb({{l, r}, {c, k}});
				bf1.updSeg(l, r, k);
				bf2.updSeg(l, r, k);
			}
			else if (tp == 2)
			{
				int l, r, k;
				cin >> l >> r >> k;
				--l;
				bf2.updSeg(l, r, -k);
			}
			else
			{
				int p, val;
				cin >> p >> val;
				--p;
				int cntLeave = bf1.getPos(p) - bf2.getPos(p);
				ans.pb(0);
				if (bf2.getPos(p) >= val)
					ops[p].pb({cntLeave + val, cntA});
				cntA++;
			}
		}
		for (int i = 0; i < n; ++i)
			ops[i].pb({INF, BIG});
		segTree res;
		res.init(n + 1);
		vector<int> prev(n + 1);
		for (int i = 0; i < n; ++i)
		{
			sort(all(ops[i]));
			reverse(all(ops[i]));
			int val = ops[i].back().f;
			res.updSeg(i, i + 1, -val);
			prev[i] = -val;
		}

		for (auto [seg, vals] : updates)
		{
			res.updSeg(seg.f, seg.s, vals.s);
			int p = res.getGoodPos();
			while (p < n)
			{
				ans[ops[p].back().s] = vals.f;
				ops[p].pop_back();
				int val = ops[p].back().f;
				res.updSeg(p, p + 1, -prev[p] - val);
				prev[p] = -val;
				p = res.getGoodPos();
			}
		}

		for (auto el : ans)
			cout << el << '\n';
	}
};

main()
{
	boost();
	int q = 1;
	// cin >> q;
	for (int i = 0; i < q; i++)
	{
		test t;
		t.solve(i);
	}
	return 0;
}
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//
//                                                                                    //
//                               Coded by Der_Vlἀpos                                  //
//                                                                                    //
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//

Compilation message (stderr)

foodcourt.cpp:340:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  340 | main()
      | ^~~~

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5
• Subtask 3: 7 / 7
• Subtask 4: 21 / 21
• Subtask 5: 15 / 15
• Subtask 6: 13 / 13
• Subtask 7: 26 / 26
• Subtask 8: 11 / 11