結果
問題 | No.1659 Product of Divisors |
ユーザー | fuppy_kyopro |
提出日時 | 2021-08-27 22:03:08 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 14 ms / 2,000 ms |
コード長 | 5,178 bytes |
コンパイル時間 | 2,448 ms |
コンパイル使用メモリ | 207,272 KB |
実行使用メモリ | 11,992 KB |
最終ジャッジ日時 | 2024-11-21 02:26:59 |
合計ジャッジ時間 | 2,965 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
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 | 6 ms
11,872 KB |
testcase_01 | AC | 6 ms
11,904 KB |
testcase_02 | AC | 6 ms
11,856 KB |
testcase_03 | AC | 6 ms
11,776 KB |
testcase_04 | AC | 6 ms
11,900 KB |
testcase_05 | AC | 6 ms
11,904 KB |
testcase_06 | AC | 5 ms
11,904 KB |
testcase_07 | AC | 6 ms
11,896 KB |
testcase_08 | AC | 5 ms
11,992 KB |
testcase_09 | AC | 6 ms
11,904 KB |
testcase_10 | AC | 11 ms
11,852 KB |
testcase_11 | AC | 7 ms
11,896 KB |
testcase_12 | AC | 14 ms
11,892 KB |
testcase_13 | AC | 4 ms
11,904 KB |
testcase_14 | AC | 14 ms
11,860 KB |
testcase_15 | AC | 5 ms
11,976 KB |
testcase_16 | AC | 5 ms
11,904 KB |
testcase_17 | AC | 5 ms
11,904 KB |
testcase_18 | AC | 5 ms
11,812 KB |
testcase_19 | AC | 5 ms
11,776 KB |
testcase_20 | AC | 6 ms
11,884 KB |
testcase_21 | AC | 5 ms
11,904 KB |
testcase_22 | AC | 12 ms
11,788 KB |
testcase_23 | AC | 6 ms
11,904 KB |
testcase_24 | AC | 6 ms
11,904 KB |
ソースコード
/* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> // #include <atcoder/math> using namespace std; // using namespace atcoder; #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int i = 0; i < v.size(); i++) { \ for (int j = 0; j < v[i].size(); j++) { \ cerr << v[i][j] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define vs vector<string> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0}; // vi dx2 = { 1,1,0,-1,-1,-1,0,1 }, dy2 = { 0,1,1,1,0,-1,-1,-1 }; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; const ll MOD = 1000000007; // const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' const int MAXN = 555555; vl fact(MAXN); vl rfact(MAXN); ll mod_pow(ll x, ll p, ll M = MOD) { if (p < 0) { x = mod_pow(x, M - 2, M); p = -p; } x %= M; ll a = 1; while (p) { if (p % 2) a = a * x % M; x = x * x % M; p /= 2; } return a; } ll mod_inverse(ll a, ll M = MOD) { return mod_pow(a, M - 2, M); } void set_fact(ll n, ll M = MOD) { fact[0] = 1; for (ll i = 1; i <= n; i++) { fact[i] = i * fact[i - 1] % M; } rfact[n] = mod_inverse(fact[n], M); for (ll i = n - 1; i >= 0; i--) { rfact[i] = (i + 1) * rfact[i + 1] % M; } } //http://drken1215.hatenablog.com/entry/2018/06/08/210000 //n���傫��fact���v�Z�ł��Ȃ��Ƃ��̂ق��̌v�Z���@�ɂ��ď����Ă��� ll nCr(ll n, ll r, ll M = MOD) { ll res = 1; for (int i = 0; i < r; i++) (res *= (n - i) % MOD) %= MOD; for (int i = 1; i <= r; i++) (res *= mod_inverse(i)) %= MOD; return res; } ll nHr(ll n, ll r) { return nCr(n + r - 1, n - 1); } ll ans = 0; ll n, k; void dfs(const vi &p, vi &a) { if (a.size() == p.size()) { ll res = 1; for (int c : a) { (res *= nHr(c + 1, k - 1)) %= MOD; } (ans += res) %= MOD; return; } for (int i = 0; i <= p[a.size()]; i++) { a.push_back(i); dfs(p, a); a.pop_back(); } } signed main() { cin >> n >> k; vi p; for (ll x = 2; x * x <= n; x++) { int cnt = 0; while (n % x == 0) { n /= x; cnt++; } if (cnt >= 1) p.push_back(cnt); } if (n > 1) p.push_back(1); vi a; dfs(p, a); cout << ans << endl; }