結果
問題 | No.2365 Present of good number |
ユーザー |
|
提出日時 | 2023-06-30 22:50:25 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 4,154 bytes |
コンパイル時間 | 4,242 ms |
コンパイル使用メモリ | 243,480 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-07-07 10:42:55 |
合計ジャッジ時間 | 5,260 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 39 |
ソースコード
#include <bits/stdc++.h>#include <atcoder/all>// url#define rep(i,a,b) for(int i=a;i<b;i++)#define rrep(i,a,b) for(int i=b-1;i>=a;i--)#define all(x) (x).begin(),(x).end()#define pb(x) push_back(x);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 (b<a) { a = b; return 1; } return 0; }typedef long long ll;typedef long double lld;using namespace std;using namespace atcoder;// using mint = static_modint<998244353>;// const ll mod=998244353;using mint = static_modint<1000000007>;const ll mod=1e9+7;int dx[4]={1,0,-1,0};int dy[4]={0,1,0,-1};const string zton="0123456789";const string atoz="abcdefghijklmnopqrstuvwxyz";const string ATOZ="ABCDEFGHIJKLMNOPQRSTUVWXYZ";const ll inf=(1ll<<60);// const int inf=(1<<30);lld dist(lld x1,lld x2,lld y1,lld y2){lld res=(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2);res=sqrt(abs(res));return res;}lld arg(lld x,lld y){const lld eps=1e-8;lld res=0;if(abs(x)+abs(y)<=eps)return 0.0;else if(abs(x)<=eps){if(y>=0.0)return (M_PI/2);else return (M_PI/2+M_PI);}else if(abs(y)<=eps){if(x>=0.0)return 0.0;else return M_PI;}res=atan2(abs(y),abs(x));if(x<=0&&y>=0)res=(M_PI-res);else if(x<=0&&y<=0)res+=(M_PI);else if(x>=0&&y<=0)res=(M_PI*2-res);return res;}ll gcd(ll a,ll b){if(a==0||b==0)return a+b;ll r;r=a%b;if(r==0){return b;}else{return gcd(b,r);}}std::ostream &operator<<(std::ostream &dest, __int128_t value) {std::ostream::sentry s(dest);if (s) {__uint128_t tmp = value < 0 ? -value : value;char buffer[128];char *d = std::end(buffer);do {--d;*d = "0123456789"[tmp % 10];tmp /= 10;} while (tmp != 0);if (value < 0) {--d;*d = '-';}int len = std::end(buffer) - d;if (dest.rdbuf()->sputn(d, len) != len) {dest.setstate(std::ios_base::badbit);}}return dest;}__int128 parse128(string &s) {__int128 ret = 0;for (int i = 0; i < s.length(); i++){if ('0' <= s[i] && s[i] <= '9'){ret = 10 * ret + s[i] - '0';}}return ret;}using l3 = __int128;typedef pair<ll,ll> P;map<P,mint> memo;mint f(ll N,ll K){if(memo.count({N,K})){return memo[{N,K}];}if(K==0){return N;}if(N==3){mint res=2;if(K%2==0){res++;}else{res*=2;}ll k=K/2;ll ex=pow_mod(2,k,mod-1);return res.pow(ex);}map<ll,ll> cnt;ll N2=N;for(ll i=2;i*i<=N2;i++){while(N%i==0){cnt[i]++;N/=i;}}if(N!=1)cnt[N]++;mint res=1;for(auto p:cnt){// cout << p.first << endl;mint mul=f(p.first+1,K-1);res*=(mul.pow(p.second));// cout << p.first << " " << mul.val() << endl;// cout << p.first << " " << p.second << endl;}// cout << N << endl;return res;}mint g(ll N,ll K){rep(i,0,K){map<ll,ll> cnt;for(ll i=2;i*i<=N;i++){while(N%i==0){cnt[i]++;N/=i;}}if(N!=1)cnt[N]++;mint res=1;for(auto p:cnt){mint mul=(p.first+1);mul=mul.pow(p.second);res*=mul;}N=res.val();// cout << i << " " << N << endl;}return N;}int main(void){ios::sync_with_stdio(false);cin.tie(nullptr);ll N,K;cin >> N >> K;mint ans=f(N,K);cout << ans.val() << endl;// rep(k,2,11){// cout << f(N,k).val() << " " << g(N,k).val() << endl;// }// cout << f(N,9).val() << " " << g(N,9).val() << endl;// map<int,int> cnt;// for(ll i=2;i*i<=K;i++){// while(K%i==0){// cnt[i]++;// K/=i;// }// }// if(K!=1)cnt[K]++;}