結果
問題 | No.2326 Factorial to the Power of Factorial to the... |
ユーザー | cho435 |
提出日時 | 2023-05-28 14:19:20 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 6 ms / 2,000 ms |
コード長 | 2,595 bytes |
コンパイル時間 | 2,551 ms |
コンパイル使用メモリ | 218,568 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-08 05:09:27 |
合計ジャッジ時間 | 3,394 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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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 | 6 ms
5,376 KB |
testcase_02 | AC | 3 ms
5,376 KB |
testcase_03 | AC | 5 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 4 ms
5,376 KB |
testcase_07 | AC | 5 ms
5,376 KB |
testcase_08 | AC | 5 ms
5,376 KB |
testcase_09 | AC | 5 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 1 ms
5,376 KB |
testcase_13 | AC | 3 ms
5,376 KB |
testcase_14 | AC | 5 ms
5,376 KB |
testcase_15 | AC | 2 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 6 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 | 1 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; #define rep(i,n) for (int i=0;i<(int)(n);i++) constexpr uint32_t totient(uint32_t x){ uint32_t ans = x; for(uint32_t i = 2; i * i <= x; i++) if(x % i == 0){ ans /= i; ans *= i - 1; do x /= i; while(x % i == 0); } if(x != 1){ ans /= x; ans *= x - 1; } return ans; } template<uint32_t P> struct Modint{ static_assert(P < 0x80000000, "P must be smaller than 2^31"); uint32_t a; Modint<totient(P)> b; private: static uint32_t mod(uint64_t x){ if(x < P * 2) return uint32_t(x); return uint32_t(x % P) + P; } static uint32_t mul(uint32_t a, uint32_t b){ return mod(uint64_t(a) * b); } static uint32_t pow(uint32_t a, uint32_t b){ uint32_t ans = 1; while(b){ if(b & 1) ans = mul(ans, a); a = mul(a, a); b >>= 1; } return ans; } public: Modint(uint64_t x): a(mod(x)), b(x){} Modint(uint32_t a, Modint<totient(P)> b): a(a), b(b){} uint32_t val() const { if(a < P) return a; return a - P; } Modint& operator*=(const Modint& other){ a = mul(a, other.a); b *= other.b; return *this; } Modint operator*(const Modint& other) const { return Modint(*this) *= other; } Modint& operator+=(const Modint& other){ a += other.a; if(a >= P * 2) a -= P; if(a >= P * 2) a -= P; b += other.b; return *this; } Modint operator+(const Modint& other) const { return Modint(*this) += other; } Modint pow(const Modint& other) const { return {pow(a, other.b.a), b.pow(other.b)}; }; }; template<> struct Modint<1>{ uint32_t a; Modint(uint64_t x): a(bool(x)){} uint32_t val() const { return 0; } Modint& operator*=(const Modint& other){ a &= other.a; return *this; } Modint operator*(const Modint& other) const { return Modint(*this) *= other; } Modint& operator+=(const Modint& other){ a |= other.a; return *this; } Modint operator+(const Modint& other) const { return Modint(*this) += other; } Modint pow(const Modint& other) const { return {a || !other.a}; } }; int main(){ int n,p; cin>>n>>p; Modint<1000000007> ans=1; for(int i=1;i<=n;i++){ ans *= i; } ans = ans.pow(ans); ll ct=0; while(n>=p){ ct+=n/p; n/=p; } ans *= ct; cout<<ans.val()<<endl; }