結果
| 問題 |
No.368 LCM of K-products
|
| コンテスト | |
| ユーザー |
kei
|
| 提出日時 | 2018-11-12 23:40:21 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,561 bytes |
| コンパイル時間 | 2,406 ms |
| コンパイル使用メモリ | 186,228 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-12-24 11:37:05 |
| 合計ジャッジ時間 | 4,313 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | WA * 35 |
ソースコード
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }
/*
<url:https://yukicoder.me/problems/no/368>
問題文============================================================
=================================================================
解説=============================================================
================================================================
*/
const ll MOD = 1e9+7;
ll powmod(ll a,ll b) {ll res=1;a%=MOD;for(;b;b>>=1){if(b&1)res=res*a%MOD;a=a*a%MOD;}return res;}
map<ll,vector<ll>> mp;
void PrimeFact(ll n,map<ll,ll>& M){
while(n!=1){
if(n == 2 || n == 3){
M[n]++;
n/=n;
continue;
}
bool prime_flag = false;
for(int i = 2;i*i <= n;i++){
if(n%i==0){
M[i]++;
n/=i;
prime_flag = true;
break;
}
}
if(!prime_flag){M[n]++; n/= n;}
}
}
ll solve(){
cout << gcd(6,gcd(10,15)) << endl;
ll res = 1;
ll N,K; cin >> N >> K;
for(int i = 0; i < N;i++){
ll A; cin >> A;
map<ll,ll> M;
PrimeFact(A, M);
for(auto p:M){
mp[p.first].push_back(p.second);
}
}
for(auto& p:mp){
sort(p.second.rbegin(),p.second.rend());
ll S = 0;
for(int i = 0; i < min(K,(ll)p.second.size());i++) S += p.second[i];
for(int i = 0; i < S;i++) (res *= p.first)%=MOD;
}
return res;
}
int main(void) {
cin.tie(0); ios_base::sync_with_stdio(false);
cout << solve() << endl;
return 0;
}
kei