結果
問題 | No.2795 Perfect Number |
ユーザー | Misuki |
提出日時 | 2024-06-28 22:18:22 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 4 ms / 2,000 ms |
コード長 | 6,317 bytes |
コンパイル時間 | 2,795 ms |
コンパイル使用メモリ | 209,204 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-28 22:18:26 |
合計ジャッジ時間 | 3,246 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 1 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 1 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 1 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 1 ms
5,376 KB |
testcase_14 | AC | 3 ms
5,376 KB |
testcase_15 | AC | 3 ms
5,376 KB |
testcase_16 | AC | 3 ms
5,376 KB |
testcase_17 | AC | 4 ms
5,376 KB |
testcase_18 | AC | 3 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 1 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 1 ms
5,376 KB |
testcase_24 | AC | 1 ms
5,376 KB |
testcase_25 | AC | 1 ms
5,376 KB |
testcase_26 | AC | 1 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 1 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 2 ms
5,376 KB |
testcase_32 | AC | 1 ms
5,376 KB |
testcase_33 | AC | 2 ms
5,376 KB |
testcase_34 | AC | 1 ms
5,376 KB |
testcase_35 | AC | 2 ms
5,376 KB |
testcase_36 | AC | 1 ms
5,376 KB |
testcase_37 | AC | 3 ms
5,376 KB |
ソースコード
#pragma GCC optimize("O2") #include <algorithm> #include <array> #include <bitset> #include <cassert> #include <cctype> #include <cfenv> #include <cfloat> #include <chrono> #include <cinttypes> #include <climits> #include <cmath> #include <complex> #include <cstdarg> #include <cstddef> #include <cstdint> #include <cstdio> #include <cstdlib> #include <cstring> #include <deque> #include <fstream> #include <functional> #include <initializer_list> #include <iomanip> #include <ios> #include <iostream> #include <istream> #include <iterator> #include <limits> #include <list> #include <map> #include <memory> #include <new> #include <numeric> #include <ostream> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <streambuf> #include <string> #include <tuple> #include <type_traits> #include <variant> #include <bit> #include <compare> #include <concepts> #include <numbers> #include <ranges> #include <span> //#define int ll #define INT128_MAX (__int128)(((unsigned __int128) 1 << ((sizeof(__int128) * __CHAR_BIT__) - 1)) - 1) #define INT128_MIN (-INT128_MAX - 1) #define clock chrono::steady_clock::now().time_since_epoch().count() #ifdef DEBUG #define dbg(x) cout << (#x) << " = " << (x) << '\n' #else #define dbg(x) #endif using namespace std; template<ranges::forward_range rng, class T = ranges::range_value_t<rng>, class OP = plus<T>> void pSum(rng &&v) { if (!v.empty()) for(T p = v[0]; T &x : v | views::drop(1)) x = p = OP()(p, x); } template<ranges::forward_range rng, class T = ranges::range_value_t<rng>, class OP> void pSum(rng &&v, OP op) { if (!v.empty()) for(T p = v[0]; T &x : v | views::drop(1)) x = p = op(p, x); } template<class T> T floorDiv(T a, T b) { if (b < 0) a *= -1, b *= -1; return a >= 0 ? a / b : (a - b + 1) / b; } template<class T> T ceilDiv(T a, T b) { if (b < 0) a *= -1, b *= -1; return a >= 0 ? (a + b - 1) / b : a / b; } template<class T> ostream& operator<<(ostream& os, const pair<T, T> pr) { return os << pr.first << ' ' << pr.second; } template<class T, size_t N> ostream& operator<<(ostream& os, const array<T, N> &arr) { for(const T &X : arr) os << X << ' '; return os; } template<class T> ostream& operator<<(ostream& os, const vector<T> &vec) { for(const T &X : vec) os << X << ' '; return os; } template<class T> ostream& operator<<(ostream& os, const set<T> &s) { for(const T &x : s) os << x << ' '; return os; } #define rep(i, a, b) for (int i = int(a); i < int(b); i++) #define trav(a, x) for (auto& a : x) #define per(i, a, b) for (int i = int(b) - 1; i >= int(a); i--) #define all(x) x.begin(), x.end() template <class T> int sz(T&& a) { return int(size(forward<T>(a))); } template <class T> using vc = vector<T>; template <class T> using vvc = vc<vc<T>>; using ll = int64_t; using vi = vc<int>; using pii = pair<int, int>; using uint = uint32_t; using ull = uint64_t; mt19937 mt(chrono::steady_clock::now().time_since_epoch().count()); template <class F> struct ycr { F f; template <class T> explicit ycr(T&& f_) : f(forward<T>(f_)) {} template <class... Args> decltype(auto) operator()(Args&&... args) { return f(ref(*this), forward<Args>(args)...); } }; template <class F> decltype(auto) yc(F&& f) { return ycr<decay_t<F>>(forward<F>(f)); } // Reference: https://judge.yosupo.jp/submission/110118 struct montgomery { using T = ull; using u128 = __uint128_t; T n, n2, r, t, e; montgomery(T n_) : n(n_) { assert(n < (T(1) << 62)); assert(n % 2 == 1); n2 = n * 2; r = n & 3; rep(_,0,5) r *= 2-n*r; r = -r; assert(r * n == T(-1)); t = -T(n) % n; e = T(-u128(n) % n); } T reduce(u128 a) const { return T((a + u128(T(a) * r) * n) >> 64); } T mult(T a, T b) const { return reduce(u128(a) * b); } T encode(T a) const { return mult(a, e); } T decode(T a) const { a = reduce(a); return a < n ? a : a-n; } T pow(T a, ll b) const { assert(b >= 0); T v = t; while (b) { if (b & 1) v = mult(v, a); a = mult(a, a); b >>= 1; } return v; } bool is_prime() const { assert(n >= 3); assert(n & 1); T d = n-1; int s = __builtin_ctzll(d); d >>= s; auto check = [&](T a) -> int { a %= n; if (a == 0) return 1; T p = pow(encode(a), d); if (decode(p) == 1 || decode(p) == n-1) return 0; for (int z = 0; z < s; z++) { p = mult(p, p); if (decode(p) == n-1) return 0; } return -1; }; for (T a : {2,325,9375,28178,450775,9780504,1795265022}) { int w = check(a); if (w) return w == 1; } return true; } ull pollard() const { assert(n >= 3); assert(n & 1); if (is_prime()) return n; while (true) { T c = mt() % (n-1) + 1; T y = mt() % (n-1) + 1; auto f = [&](T a) -> T { return reduce(u128(a) * a + c); }; for (T s = 1; ; s *= 2) { T x = n2-y; T m = min(T(1) << (__lg(n)/6), s); rep(i,0,s/m) { T w = t, z = y; rep(j,0,m) { y = f(y); w = mult(w, y+x); } T g = __gcd(decode(w), n); if (g != 1) { if (g < n) return g; rep(j,0,m) { z = f(z); if ((g = __gcd(decode(z+x), n)) != 1) { if (g < n) return g; goto fail; } } assert(false); } } } fail:; } } }; using ull = uint64_t; bool is_prime(ull n) { if (n <= 1) return false; if (n == 2) return true; if (n % 2 == 0) return false; return montgomery(n).is_prime(); } ull get_divisor(ull n) { assert(n > 1); if (n % 2 == 0) return 2; return montgomery(n).pollard(); } vc<ull> factorize(ull n) { vc<ull> res; yc([&](auto self, ull v) -> void { if (v == 1) return; ull d = get_divisor(v); if (d == v) { res.push_back(d); return; } self(d); self(v/d); })(n); return res; } vector<ull> factors(ull val) { map<ull, ull> mp; for(auto x : factorize(val)) mp[x]++; vector<ull> res(1, 1); for(auto [p, idx] : mp) { vector<ull> tmp; for(ull i = 0, base = 1; i <= idx; i++, base *= p) for(ull X : res) tmp.emplace_back(X * base); res.swap(tmp); } return res; } signed main() { ios::sync_with_stdio(false), cin.tie(NULL); ull n; cin >> n; ull s = 0; for(auto d : factors(n)) { s += d; if (s > 2 * n) break; } cout << (s == 2 * n ? "Yes\n" : "No\n"); return 0; }