結果
問題 | No.1666 累乗数 |
ユーザー | keijak |
提出日時 | 2021-09-04 02:47:32 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 629 ms / 2,000 ms |
コード長 | 4,380 bytes |
コンパイル時間 | 5,617 ms |
コンパイル使用メモリ | 374,456 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-16 01:12:40 |
合計ジャッジ時間 | 13,679 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,820 KB |
testcase_01 | AC | 40 ms
6,820 KB |
testcase_02 | AC | 67 ms
6,820 KB |
testcase_03 | AC | 72 ms
6,816 KB |
testcase_04 | AC | 77 ms
6,816 KB |
testcase_05 | AC | 625 ms
6,820 KB |
testcase_06 | AC | 622 ms
6,820 KB |
testcase_07 | AC | 629 ms
6,816 KB |
testcase_08 | AC | 624 ms
6,816 KB |
testcase_09 | AC | 227 ms
6,816 KB |
testcase_10 | AC | 248 ms
6,820 KB |
testcase_11 | AC | 255 ms
6,816 KB |
testcase_12 | AC | 246 ms
6,816 KB |
testcase_13 | AC | 570 ms
6,816 KB |
testcase_14 | AC | 557 ms
6,820 KB |
testcase_15 | AC | 569 ms
6,816 KB |
testcase_16 | AC | 563 ms
6,820 KB |
testcase_17 | AC | 374 ms
6,820 KB |
testcase_18 | AC | 433 ms
6,816 KB |
testcase_19 | AC | 406 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> #define REP_(i, a_, b_, a, b, ...) \ for (int i = (a), END_##i = (b); i < END_##i; ++i) #define REP(i, ...) REP_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define ALL(x) std::begin(x), std::end(x) using i64 = long long; template<typename T, typename U> inline bool chmax(T &a, U b) { return a < b and ((a = std::move(b)), true); } template<typename T, typename U> inline bool chmin(T &a, U b) { return a > b and ((a = std::move(b)), true); } template<typename T> inline int ssize(const T &a) { return (int) std::size(a); } template<typename T> std::istream &operator>>(std::istream &is, std::vector<T> &a) { for (auto &x: a) is >> x; return is; } template<typename T, typename U> std::ostream &operator<<(std::ostream &os, const std::pair<T, U> &a) { return os << "(" << a.first << ", " << a.second << ")"; } template<typename Container> std::ostream &print_seq(const Container &a, std::string_view sep = " ", std::string_view ends = "\n", std::ostream &os = std::cout) { auto b = std::begin(a), e = std::end(a); for (auto it = std::begin(a); it != e; ++it) { if (it != b) os << sep; os << *it; } return os << ends; } template<typename T, typename = void> struct is_iterable : std::false_type {}; template<typename T> struct is_iterable<T, std::void_t<decltype(std::begin(std::declval<T>())), decltype(std::end(std::declval<T>()))>> : std::true_type { }; template<typename T, typename = std::enable_if_t< is_iterable<T>::value && !std::is_same<T, std::string_view>::value && !std::is_same<T, std::string>::value>> std::ostream &operator<<(std::ostream &os, const T &a) { return print_seq(a, ", ", "", (os << "{")) << "}"; } void print() { std::cout << "\n"; } template<class T> void print(const T &x) { std::cout << x << "\n"; } template<typename Head, typename... Tail> void print(const Head &head, Tail... tail) { std::cout << head << " "; print(tail...); } struct Input { template<typename T> operator T() const { T x; std::cin >> x; return x; } } in; #ifdef MY_DEBUG #include "debug_dump.hpp" #else #define DUMP(...) #endif using namespace std; struct PrimeSieve { std::vector<int> spf; // smallest prime factors table. std::vector<int> primes; explicit PrimeSieve(int n) : spf(n + 1) { // O(n) for (int i = 2; i <= n; ++i) { if (spf[i] == 0) { spf[i] = i; primes.push_back(i); } for (const auto &p: primes) { if (i * p > n or p > spf[i]) break; spf[i * p] = p; } } } inline bool is_prime(int n) const { return spf[n] == n; } // Möbius function. int moebius(int n) const { assert(0 < n and n < int(spf.size())); int res = 1; while (n > 1) { const int p = spf[n]; n /= p; if (n % p == 0) return 0; res *= -1; } return res; } }; template<class F> i64 bisect(i64 true_x, i64 false_x, F pred) { static_assert(std::is_invocable_r_v<bool, F, i64>, "F must be: i64 -> bool"); assert(std::max<i64>(true_x, false_x) <= std::numeric_limits<i64>::max() / 2); // To allow negative values, use floor_div() in the loop. assert(true_x >= -1 and false_x >= -1); using u64 = unsigned long long; while (std::abs(true_x - false_x) > 1) { i64 mid = ((u64) true_x + (u64) false_x) / 2; if (pred(mid)) { true_x = std::move(mid); } else { false_x = std::move(mid); } } return true_x; } #include <boost/multiprecision/cpp_int.hpp> using i128 = boost::multiprecision::checked_int128_t; auto main() -> int { ios_base::sync_with_stdio(false), cin.tie(nullptr); const PrimeSieve sieve(64); auto f = [&](i64 x) -> i64 { i64 cnt = 0; for (i64 i = 2; i < 64; ++i) { const int mu = sieve.moebius(i); if (mu == 0) continue; i64 ymax = bisect(1, x + 1, [&](i64 y) -> bool { i128 yp = 1; REP(j, i) { yp *= y; if (yp > x) return false; } return yp <= x; }); cnt += -mu * (ymax - 1); } return cnt + 1; }; auto solve = [&]() -> i64 { const i64 K = in; return bisect(K * K, 0LL, [&](i64 x) { return f(x) >= K; }); }; const int t = in; REP(test_case, t) { auto ans = solve(); print(ans); } }