結果

問題 No.3265 地元に帰れば天才扱い！
コンテスト
ユーザー elphe
提出日時 2025-08-07 23:52:44
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
(最新)
AC  
(最初)
実行時間 -
コード長 5,220 bytes
コンパイル時間 5,423 ms
コンパイル使用メモリ 283,984 KB
実行使用メモリ 816,420 KB
最終ジャッジ日時 2025-09-06 12:30:54
合計ジャッジ時間 8,709 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample WA * 3 RE * 1
other MLE * 1 -- * 20
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include <bits/stdc++.h>

namespace MyLib
{
	template<typename T, class Picker, T default_value> class LiteralSegmentTree
	{
	protected:
		std::vector<std::vector<T>> containers;
	
	public:
		constexpr LiteralSegmentTree(const std::vector<T>& initializer)
		{
			containers.clear();
	
			if (initializer.size() == 0) return;
			else if (initializer.size() == 1) { containers.emplace_back(1, initializer[0]); return; }
	
			uint_fast32_t l = 0, r = 30;
			while (l + 1 < r)
			{
				const auto c = (l + r) >> 1;
				if (((uint_fast32_t)1 << c) < initializer.size())
					l = c;
				else
					r = c;
			}
	
			containers.emplace_back((uint_fast32_t)1 << r);
	
			uint_fast32_t i;
			for (i = 0; i != initializer.size(); ++i)
				containers[0][i] = initializer[i];
			for (; i != ((uint_fast32_t)1 << r); ++i)
				containers[0][i] = default_value;
	
			for (--r; r != 0; --r)
			{
				containers.emplace_back((uint_fast32_t)1 << r);
				for (i = 0; i != ((uint_fast32_t)1 << r); ++i)
					containers[containers.size() - 1][i] = Picker()(containers[containers.size() - 2][i << 1], containers[containers.size() - 2][(i << 1) | 1]);
			}
			containers.emplace_back(1, Picker()(containers[containers.size() - 1][0], containers[containers.size() - 1][1]));
		}
	
		constexpr LiteralSegmentTree(std::vector<T>&& initializer)
		{
			containers.clear();
	
			if (initializer.size() == 0) return;
	
			uint_fast32_t l = 0, r = 30;
			while (l + 1 < r)
			{
				const auto c = (l + r) >> 1;
				if (((uint_fast32_t)1 << c) < initializer.size())
					l = c;
				else
					r = c;
			}
	
			containers.emplace_back(std::move(initializer));
			containers[0].resize((uint_fast32_t)1 << r, default_value);
	
			uint_fast32_t i;
			for (--r; r != 0; --r)
			{
				containers.emplace_back((uint_fast32_t)1 << r);
				for (i = 0; i != ((uint_fast32_t)1 << r); ++i)
					containers[containers.size() - 1][i] = Picker()(containers[containers.size() - 2][i << 1], containers[containers.size() - 2][(i << 1) | 1]);
			}
			containers.emplace_back(1, Picker()(containers[containers.size() - 1][0], containers[containers.size() - 1][1]));
		}
	
		constexpr LiteralSegmentTree(const uint_fast32_t n) : LiteralSegmentTree<T, Picker, default_value>(std::vector<T>(n, default_value)) { }
		constexpr LiteralSegmentTree(const uint_fast32_t n, const T initial_value) : LiteralSegmentTree<T, Picker, default_value>(std::vector<T>(n, initial_value)) { }
	
		constexpr T operator[](uint_fast32_t index) const noexcept { return containers[0][index]; }
	
		constexpr uint_fast32_t size() const noexcept { return containers[0].size(); }
		constexpr uint_fast32_t layer() const noexcept { return containers.size(); }
	
		constexpr T update(uint_fast32_t index, const T value) noexcept
		{
			containers[0][index] = value;
	
			index >>= 1;
			for (uint_fast32_t i = 1; i != containers.size(); ++i, index >>= 1)
				containers[i][index] = Picker()(containers[i - 1][index << 1], containers[i - 1][(index << 1) | 1]);
	
			return value;
		}
	
		constexpr T range_pick_up(uint_fast32_t first_index, uint_fast32_t end_index) const noexcept
		{
			if (containers.size() == 0 || end_index > containers[0].size()) return default_value;
	
			T ret_l = default_value, ret_r = default_value;
			for (uint_fast32_t cur_layer = 0; first_index < end_index; first_index >>= 1, end_index >>= 1, ++cur_layer)
			{
				if (first_index & 1)
					ret_l = Picker()(ret_l, containers[cur_layer][first_index]), ++first_index;
				if (end_index & 1)
					ret_r = Picker()(containers[cur_layer][end_index - 1], ret_r);
			}
	
			return Picker()(ret_l, ret_r);
		}
	};
}

// セグメントツリー解法
static inline constexpr std::vector<uint_fast64_t> solve(const uint_fast32_t N, const uint_fast32_t Q, std::vector<uint_fast64_t>&& A, std::vector<uint_fast32_t>& X, const std::vector<uint_fast32_t>& Y, const std::vector<uint_fast32_t>& L, const std::vector<uint_fast32_t>& R) noexcept
{
	uint_fast64_t sum = 0;
	std::vector<uint_fast64_t> ans(Q);
	MyLib::LiteralSegmentTree<uint_fast64_t, std::plus<uint_fast64_t>, 0> lst(std::move(A));
	MyLib::LiteralSegmentTree<uint_fast32_t, std::plus<uint_fast32_t>, 0> imos_weight(N + 1, 0);
	for (uint_fast32_t i = 0; i != Q; ++i)
	{
		const uint_fast32_t weight = imos_weight.range_pick_up(0, X[i]);  // imos 法で一点の重みを取得する
		sum -= lst[X[i] - 1] * weight;
		lst.update(X[i] - 1, Y[i]);
		sum += lst[X[i] - 1] * weight;
		ans[i] = (sum += lst.range_pick_up(L[i] - 1, R[i]));
		imos_weight.update(L[i] - 1, imos_weight[L[i] - 1] + 1), imos_weight.update(R[i], imos_weight[R[i]] - 1);  // imos 法で区間の重みを増やす
	}

	return ans;
}

static inline void output(const uint_fast32_t Q, const std::vector<uint_fast64_t>& ans) noexcept
{
	for (uint_fast32_t i = 0; i != Q; ++i)
		std::cout << ans[i] << '\n';
}

int main()
{
	std::cin.tie(nullptr);
	std::ios::sync_with_stdio(false);
	
	uint_fast32_t N, Q, i;
	std::cin >> N;
	std::vector<uint_fast64_t> A(N);
	for (i = 0; i != N; ++i)
		std::cin >> A[i];

	std::cin >> Q;
	std::vector<uint_fast32_t> X(Q), Y(Q), L(Q), R(Q);
	for (i = 0; i != Q; ++i)
		std::cin >> X[i] >> Y[i] >> L[i] >> R[i];

	output(Q, solve(N, Q, std::move(A), X, Y, L, R));
	return 0;
}
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