結果

問題 No.1659 Product of Divisors
ユーザー tomo0608tomo0608
提出日時 2021-08-27 21:56:49
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 8,493 bytes
コンパイル時間 2,686 ms
コンパイル使用メモリ 240,236 KB
最終ジャッジ日時 2024-11-15 01:44:09
合計ジャッジ時間 3,119 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp: In instantiation of 'void print(const T&, const Ts& ...) [with T = atcoder::static_modint<1000000007>; Ts = {}]':
main.cpp:193:10:   required from here
main.cpp:50:75: error: no match for 'operator<<' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and 'const atcoder::static_modint<1000000007>')
   50 | template<class T, class... Ts>void print(const T& a, const Ts&... b){cout << a; (cout << ... << (cout << ' ', b)); cout << '\n';}
      |                                                                      ~~~~~^~~~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/istream:39,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/sstream:38,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/complex:45,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ccomplex:39,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:54,
                 from main.cpp:10:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:108:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(__ostream_type& (*)(__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __ostream_type = std::basic_ostream<char>]'
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |       ^~~~~~~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:108:36: note:   no known conversion for argument 1 from 'const atcoder::static_modint<1000000007>' to 'std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&)' {aka 'std::basic_ostream<char>& (*)(std::basic_ostream<char>&)'}
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/home/linuxbrew/

ソースコード

diff # 

/**
*    author:  tomo0608
*    created: 27.08.2021 21:40:45
**/

#ifdef __LOCAL
#define _GLIBCXX_DEBUG
#endif
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include<atcoder/all>
using namespace atcoder;
#endif

typedef long long ll;
typedef long double ld;
template <class T> using V = vector<T>;
template <class T> using VV = V<V<T>>;
template <class T> using VVV = V<VV<T>>;
typedef pair<int,int> pii;
typedef pair<long long, long long> pll;

#define all(x) x.begin(),x.end()
#define SUM(v) accumulate(all(v), 0LL)
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define lb(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define ub(c, x) distance((c).begin(), upper_bound(all(c), (x)))
#define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end())
template <typename T> void zip(vector<T> &x) {vector<T> y = x;UNIQUE(y);for(int i = 0; i < x.size(); ++i) { x[i] = lb(y, x[i]); }}
#define rep1(a)          for(long long i = 0; i < a; i++)
#define rep2(i, a)       for(long long i = 0; i < a; i++)
#define rep3(i, a, b)    for(long long i = a; i < b; i++)
#define rep4(i, a, b, c) for(long long i = a; i < b; i += c)
#define drep1(a)          for(long long i = a-1; i >= 0; i--)
#define drep2(i, a)       for(long long i = a-1; i >= 0; i--)
#define drep3(i, a, b)    for(long long i = a-1; i >= b; i--)
#define drep4(i, a, b, c) for(long long i = a-1; i >= b; i -= c)
#define overload4(a, b, c, d, e, ...) e
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define drep(...) overload4(__VA_ARGS__, drep4, drep3, drep2, drep1)(__VA_ARGS__)
template<class... T>void input(T&... a){(cin >> ... >> a);};
#define INT(...) int __VA_ARGS__; input(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; input(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; input(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__; input(__VA_ARGS__)
void print(){cout << '\n';}
template<class T, class... Ts>void print(const T& a, const Ts&... b){cout << a; (cout << ... << (cout << ' ', b)); cout << '\n';}
void drop(){cout << '\n';exit(0);}
template<class T, class... Ts>void drop(const T& a, const Ts&... b){cout << a; (cout << ... << (cout << ' ', b)); cout << '\n';exit(0);}
template<class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T> >;
template<class T, class U> inline bool chmax(T &a, const U &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T, class U> inline bool chmin(T &a, const U &b) { if (a>b) { a=b; return 1; } return 0; }
template<class T1, class T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; }
template<class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << '(' << p.first << ", " << p.second << ')'; return os; }
template<class T> istream &operator>>(istream &is, vector<T> &v) { for (auto &e : v) is >> e; return is; }
template<class T> ostream &operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; }
template<typename T> ostream& operator << (ostream& os, set<T>& set_var) {os << "{"; for (auto itr = set_var.begin(); itr != set_var.end(); itr++) {os << *itr;++itr;if(itr != set_var.end()) os << ", ";itr--;}os << "}";return os;}
template <typename T, typename U> ostream &operator<<(ostream &os, map<T, U> &map_var) {os << "{";for(auto itr = map_var.begin(); itr != map_var.end(); itr++) {os << *itr;itr++;if (itr != map_var.end()) os << ", ";itr--;}os << "}";return os;}
#ifdef __LOCAL
void debug_out(){ cerr << endl;}
template < class Head, class... Tail> void debug_out(Head H, Tail... T) { cerr << ' ' << H; debug_out(T...);}
#define debug(...) cerr << 'L' << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define dump(x) cerr << 'L' << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
template<class T> inline int count_between(vector<T> &a, T l, T r) { return lower_bound(all(a), r) - lower_bound(all(a), l); } // [l, r)
#define mp make_pair
#define bit(n, k) ((n >> k) & 1) /*nのk bit目*/
int topbit(signed t) { return t == 0 ? -1 : 31 - __builtin_clz(t); }
int topbit(ll t) { return t == 0 ? -1 : 63 - __builtin_clzll(t); }
int lowbit(signed a) { return a == 0 ? 32 : __builtin_ctz(a); }
int lowbit(ll a) { return a == 0 ? 64 : __builtin_ctzll(a); }
template <typename T>T mypow(T x, ll n){T ret = 1;while(n > 0){if(n & 1)(ret *= x);(x *= x);n >>= 1;}return ret;}
#define endl '\n'
int dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
int dy[8] = {0, 1, 0, -1, 1, -1, -1, 1};

// input and output of modint
#include<atcoder/modint>
istream &operator>>(istream &is, atcoder::modint998244353 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const atcoder::modint998244353 &a) { return os << a.val(); }
istream &operator>>(istream &is, atcoder::modint1000000007 &a) { long long v; is >> v; a = v; return is; }
ostream &operator<<(ostream &os, const atcoder::modint1000000007 &a) { return os << a.val(); }
template<int m> istream &operator>>(istream &is, atcoder::static_modint<m> &a) { long long v; is >> v; a = v; return is; }
template<int m> ostream &operator<<(ostream &os, const atcoder::static_modint<m> &a) { return os << a.val(); }
template<int m> istream &operator>>(istream &is, atcoder::dynamic_modint<m> &a) { long long v; is >> v; a = v; return is; }
template<int m> ostream &operator<<(ostream &os, const atcoder::dynamic_modint<m> &a) { return os << a.val(); }
// Binomial Coefficient of modint
template<class T> struct BiCoef {
    vector<T> fact_, inv_, finv_;
    constexpr BiCoef() {}
    constexpr BiCoef(int n) noexcept : fact_(n, 1), inv_(n, 1), finv_(n, 1){
       init(n);
    }
    constexpr void init(int n) noexcept {
       fact_.assign(n, 1), inv_.assign(n, 1), finv_.assign(n, 1);
       int MOD = fact_[0].mod();
       for(int i = 2; i < n; i++){
            fact_[i] = fact_[i-1]*i;
            inv_[i] = -inv_[MOD%i]*(MOD/i);
            finv_[i] = finv_[i-1]*inv_[i];
        }
    }
    constexpr T com(int n, int k) const noexcept {
        if(n < k || n < 0 || k < 0)return 0;
        return fact_[n]*finv_[k]*finv_[n-k];
    }
    constexpr T perm(int n, int k) const noexcept {
        if(n < k || n < 0 || k < 0)return 0;
        return fact_[n]*finv_[n-k];
    }
    constexpr T fact(int n) const noexcept {
        if(n < 0)return 0;
        return fact_[n];
    }
    constexpr T inv(int n) const noexcept {
        if(n < 0)return 0;
        return inv_[n];
    }
    constexpr T finv(int n) const noexcept {
        if(n < 0)return 0;
        return finv_[n];
    }
};
typedef atcoder::modint1000000007 mint;
//typedef atcoder::modint998244353 mint;

mint interpolation(const std::vector<mint> &y, ll T){
    // y = [f(0),\ldots, f(n)]として, f(T)を求める
    int n = y.size()-1;
    if(T <= n)return y[T];
    mint ret = 0;
    std::vector<mint> L(n+1, 1), R(n+1, 1);
    for(int i = 0; i < n; i++)L[i+1] = L[i] * (T - i);
    for(int i = n; i > 0; i--)R[i-1] = R[i] * (T - i);
    std::vector<mint> fact(n+1,1),ifact(n+1,1);
    for(int i = 1; i <= n; i++)fact[i] = fact[i-1] * i;
    ifact[n] = fact[n].inv();
    for(int i = n; i > 0; i--)ifact[i-1] = ifact[i] * i;
    for(int i = 0; i <= n; i++){
        mint tmp = y[i] * L[i] * R[i] * ifact[i] * ifact[n - i];
        if((n - i) & 1)ret -= tmp;
        else ret += tmp;
    }
    return ret;
}


map<ll, ll> prime_factorization(ll n){
    map<ll,ll> res;
    n = abs(n);
    assert(n > 1);
    for(ll i = 2; i * i <= n; i++){
        if(n%i == 0){
            int num = 0;
            while(n%i == 0){
                num++;
                n /= i;
            }
            res[i] = num;
        }
    }
    if(n != 1)res[n] = 1;
    return res;
}


void solve(){
    LL(n,k);
    if(n == 1){
        print(1);
        return;
    }
    auto dat = prime_factorization(n);
    mint ans = 1;
    for(auto [p, num]: dat){
        debug(p,num);
        rep(j,1,num+1){
            mint tmp = k + 1 + num - j;
            ans *= tmp;
            if(mint(j) == 0){
                print(0);
                return;
            }
            ans /= j;
        }
    }
    print(ans);
}
// 100000000000
int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    cout << setprecision(20);
    int codeforces = 1;
    //cin >> codeforces;
    while(codeforces--){
        solve();
    }
    return 0;
}
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