#647132 (C++17(gcc12)) No.1496 不思議な数え上げ

提出ソース
結果

問題	No.1496 不思議な数え上げ
コンテスト
ユーザー	kaage
提出日時	2021-04-11 15:18:09
言語	C++17(gcc12) (gcc 12.3.0 + boost 1.87.0)
結果	RE
実行時間	-
コード長	7,199 bytes
コンパイル時間	8,779 ms
コンパイル使用メモリ	211,972 KB
最終ジャッジ日時	2025-01-20 16:08:18
ジャッジサーバーID （参考情報）	judge3 / judge2
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	AC * 3
other	RE * 39
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

raw source code
#line 2 "library/other/template.hpp"
#define _CRT_SECURE_NO_WARNINGS
#ifndef __clang__
#ifdef ONLINE_JUDGE
#pragma GCC target("avx512f")
#elif defined EVAL
#else
#pragma GCC target("avx2")
#endif
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#endif
#include <string.h>
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <map>
#include <memory>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

#define rep(i, n) for (int i = 0; i < int(n); i++)
#define REP(i, n) for (int i = 1; i <= int(n); i++)
#define all(V) V.begin(), V.end()

using i128 = __int128_t;
using u128 = __uint128_t;
using uint = unsigned int;
using lint = long long;
using ulint = unsigned long long;
using IP = std::pair<int, int>;
using LP = std::pair<lint, lint>;

constexpr int INF = INT_MAX / 2;
constexpr lint LINF = LLONG_MAX / 2;
constexpr double eps = DBL_EPSILON;
constexpr double PI = 3.141592653589793238462643383279;

template <class T>
class prique : public std::priority_queue<T, std::vector<T>, std::greater<T>> {
};
int popcount(uint x) {
#if __cplusplus >= 202002L
	return std::popcount(x);
#else
#ifndef __clang__
	return __builtin_popcount(x);
#endif
#endif
	x = (x & 0x55555555) + (x >> 1 & 0x55555555);
	x = (x & 0x33333333) + (x >> 2 & 0x33333333);
	x = (x & 0x0f0f0f0f) + (x >> 4 & 0x0f0f0f0f);
	x = (x & 0x00ff00ff) + (x >> 8 & 0x00ff00ff);
	return (x & 0x0000ffff) + (x >> 16 & 0x0000ffff);
}
template <class F>
inline constexpr decltype(auto) lambda_fix(F&& f) {
	return [f = std::forward<F>(f)](auto&&... args) {
		return f(f, std::forward<decltype(args)>(args)...);
	};
}
template <class T>
constexpr std::vector<T> make_vec(size_t n) {
	return std::vector<T>(n);
}
template <class T, class... Args>
constexpr auto make_vec(size_t n, Args&&... args) {
	return std::vector<decltype(make_vec<T>(args...))>(
		n, make_vec<T>(std::forward<Args>(args)...));
}
template <class T, class U>
constexpr inline bool chmax(T& lhs, const U& rhs) noexcept {
	if (lhs < rhs) {
		lhs = rhs;
		return true;
	}
	return false;
}
template <class T, class U>
constexpr inline bool chmin(T& lhs, const U& rhs) noexcept {
	if (lhs > rhs) {
		lhs = rhs;
		return true;
	}
	return false;
}
constexpr inline lint gcd(lint a, lint b) noexcept {
	while (b) {
		lint c = a;
		a = b;
		b = c % b;
	}
	return a;
}
inline lint lcm(lint a, lint b) noexcept { return a / gcd(a, b) * b; }
constexpr bool isprime(lint n) noexcept {
	if (n == 1) return false;
	for (int i = 2; i * i <= n; i++) {
		if (n % i == 0) return false;
	}
	return true;
}
template <class T>
constexpr T mypow(T a, lint b) noexcept {
	T res(1);
	while (true) {
		if (b & 1) res *= a;
		b >>= 1;
		if (!b) break;
		a *= a;
	}
	return res;
}
constexpr lint modpow(lint a, lint b, lint m) noexcept {
	a %= m;
	lint res(1);
	while (b) {
		if (b & 1) {
			res *= a;
			res %= m;
		}
		a *= a;
		a %= m;
		b >>= 1;
	}
	return res;
}
template <class T>
constexpr void printArray(const std::vector<T>& vec, char split = ' ') {
	rep(i, vec.size()) {
		std::cout << vec[i];
		std::cout << (i == (int)vec.size() - 1 ? '\n' : split);
	}
}
template <class InputIter>
constexpr void printArray(InputIter l, InputIter r, char split = ' ') {
	auto rprev = std::prev(r);
	for (auto i = l; i != r; i++) {
		std::cout << *i;
		std::cout << (i == rprev ? '\n' : split);
	}
}
LP extGcd(lint a, lint b) noexcept {
	if (b == 0) return {1, 0};
	LP s = extGcd(b, a % b);
	std::swap(s.first, s.second);
	s.second -= a / b * s.first;
	return s;
}
LP ChineseRem(const lint& b1, const lint& m1, const lint& b2,
			  const lint& m2) noexcept {
	auto p = extGcd(m1, m2);
	lint g = gcd(m1, m2), l = m1 / g * m2;
	lint tmp = (b2 - b1) / g * p.first % (m2 / g);
	lint r = (b1 + m1 * tmp + l) % l;
	return {r, l};
}
int LCS(const std::string& a, const std::string& b) {
	auto dp = make_vec<int>(a.size() + 1, b.size() + 1);
	rep(i, a.size()) {
		rep(j, b.size()) {
			chmax(dp[i + 1][j], dp[i][j]);
			chmax(dp[i][j + 1], dp[i][j]);
			if (a[i] == b[j]) chmax(dp[i + 1][j + 1], dp[i][j] + 1);
		}
		chmax(dp[i + 1][b.size()], dp[i][b.size()]);
	}
	rep(j, b.size()) chmax(dp[a.size()][j + 1], dp[a.size()][j]);
	return dp[a.size()][b.size()];
}
template <class T, std::enable_if_t<std::is_convertible<int, T>::value,
									std::nullptr_t> = nullptr>
void compress(std::vector<T>& vec) {
	auto tmp = vec;
	std::sort(all(tmp));
	tmp.erase(std::unique(all(tmp)), tmp.end());
	for (T& i : vec) i = std::lower_bound(all(tmp), i) - tmp.begin();
}
template <class T>
void compress(T* l, T* r) {
	std::vector<T> tmp(l, r);
	std::sort(all(tmp));
	tmp.erase(std::unique(all(tmp)), tmp.end());
	for (auto i = l; i < r; i++) {
		*i = std::lower_bound(all(tmp), *i) - tmp.begin();
	}
}
template <class InputIter>
void compress(InputIter l, InputIter r) {
	std::vector<typename InputIter::value_type> tmp(l, r);
	std::sort(all(tmp));
	tmp.erase(std::unique(all(tmp)), tmp.end());
	for (auto i = l; i < r; i++) {
		*i = std::lower_bound(all(tmp), *i) - tmp.begin();
	}
}
#line 3 "library/graph/UnionFind.hpp"
class UnionFind {
  protected:
	std::vector<int> par, size;

  public:
	UnionFind() {}
	UnionFind(int size) { init(size); }
	void init(int size) {
		par.resize(size);
		this->size.resize(size, 1);
		std::iota(all(par), 0);
	}
	int find(int n) {
		if (par[n] == n) return n;
		return par[n] = find(par[n]);
	}
	void unite(int n, int m) {
		n = find(n);
		m = find(m);
		if (n == m) return;
		int a = n, b = m;
		if (size[a] > size[b]) std::swap(a, b);
		par[a] = b;
		size[b] += size[a];
	}
	bool same(int n, int m) { return find(n) == find(m); }
	int getsize(int n) { return size[find(n)]; }
	bool is_root(int n) { return find(n) == n; }
};

/**
 * @title Disjoint set
 */
#line 3 "main.cpp"
int N, rev[200010];
lint cum[200010];
std::vector<lint> P, A, ans;
int main() {
	scanf("%d", &N);
	P.resize(N + 2), A.resize(N + 2), ans.resize(N + 2);
	REP(i, N) {
		scanf("%lld", P.data() + i);
		rev[P[i]] = i;
		cum[i] = P[i];
	}
	REP(i, N - 1) cum[i + 1] += cum[i];
	REP(i, N) scanf("%lld", A.data() + i);
	UnionFind uf(N + 2);
	for (int i = N; i > 0; i--) {
		int l = 0, r = 0;
		if (rev[i] != 1 && P[rev[i] - 1] > i) l = uf.getsize(rev[i] - 1);
		if (rev[i] != N && i < P[rev[i] + 1]) r = uf.getsize(rev[i] + 1);
		if (std::rand() & 1) {
			for (int j = rev[i]; j >= rev[i] - l; j--) {
				int x =
					std::upper_bound(cum, cum + N + 1, A[i] + cum[j - 1]) - cum;
				ans[i] += std::min(r + 1, std::max(0, x - rev[i]));
			}
		} else {
			for (int j = rev[i]; j <= rev[i] + r; j++) {
				int x = std::lower_bound(cum, cum + N + 1, cum[j] - A[i]) - cum;
				ans[i] += std::min(l + 1, std::max(0, rev[i] - x));
			}
		}
		if (rev[i] != 1 && P[rev[i] - 1] > i) uf.unite(rev[i] - 1, rev[i]);
		if (rev[i] != N && i < P[rev[i] + 1]) uf.unite(rev[i], rev[i] + 1);
	}
	REP(i, N) printf("%lld\n", ans[i]);
	return 0;
}
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結果

ソースコード
