結果
| 問題 | No.14 最小公倍数ソート |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-09-26 19:03:27 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,251 bytes |
| コンパイル時間 | 6,170 ms |
| コンパイル使用メモリ | 303,872 KB |
| 最終ジャッジ日時 | 2025-02-24 12:52:46 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 3 WA * 17 |
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>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
// using mint = modint1000000007;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using T = tuple<int, int, int>;
using G = vector<vector<int>>;
#define rep(i, n) for (ll i = 0; i < (n); ++i)
#define rep2(i, a, b) for (ll i = a; i < (b); ++i)
#define rrep2(i, a, b) for (ll i = a-1; i >= (b); --i)
#define rep3(i, a, b, c) for (ll i = a; i < (b); i+=c)
#define rng(a) a.begin(),a.end()
#define rrng(a) a.rbegin(),a.rend()
#define popcount __builtin_popcount
#define popcountll __builtin_popcountll
#define fi first
#define se second
#define UNIQUE(v) sort(rng(v)), v.erase(unique(rng(v)), v.end())
#define MIN(v) *min_element(rng(v))
#define MAX(v) *max_element(rng(v))
template<class T> bool chmin(T &a,T b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,T b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void printv(vector<T> &v){rep(i,v.size())cout<<v[i]<<" \n"[i==v.size()-1];}
template<class T> void printvv(vector<vector<T>> &v){rep(i,v.size())rep(j,v[i].size())cout<<v[i][j]<<" \n"[j==v[i].size()-1];cout<<endl;}
const ll dx[] = {0, 1, 0, -1};
const ll dy[] = {1, 0, -1, 0};
const ll dxx[] = {0, 1, 0, -1, 1, -1, 1, -1};
const ll dyy[] = {1, 0, -1, 0, 1, 1, -1, -1};
const ll LINF = 1001002003004005006ll;
const int INF = 1001001001;
ll gcd(ll a, ll b){ return (b ? gcd(b, a%b) : a); }
ll lcm(ll a, ll b){ return a/gcd(a, b)*b; }
// ax+by=gとなるg=gcd(a, b), x, yを求める拡張gcd
tuple<ll, ll, ll> extgcd(ll a, ll b) {
if (b == 0) return {a, 1, 0};
ll g, x, y;
tie(g, x, y) = extgcd(b, a%b);
return {g, y, x-a/b*y};
}
// n以下の素因数分解/約数列挙
struct Eratosthenes{
vector<int> min_pf, prime; // min_pf[i]: iの最小の素因数, prime: 素数リスト
// コンストラクタにおいて、ふるいを回す。
Eratosthenes(int n) : min_pf(n+1, -1) {
for(int i = 2; i <= n; i++){
if(min_pf[i] != -1) continue;
prime.emplace_back(i);
for(int j = i; j <= n; j+=i){
if (min_pf[j] == -1) min_pf[j] = i;
}
}
}
// nの素因数分解を返す関数。
vector<pair<int, int>> factorize(int n){
vector<pair<int,int>> res;
while (n > 1) {
int p = min_pf[n];
int exp = 0;
while (min_pf[n] == p) {
n /= p;
++exp;
}
res.emplace_back(p, exp);
}
return res;
}
// nの約数を列挙する関数。
vector<int> divisor(int n) {
vector<int> res({1});
auto pf = factorize(n);
for (auto p : pf) {
int s = (int)res.size();
for (int i = 0; i < s; ++i) {
int v = 1;
for (int j = 0; j < p.second; ++j) {
v *= p.first;
res.push_back(res[i] * v);
}
}
}
sort(res.begin(), res.end());
return res;
}
};
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n; cin >> n;
vector<int> a(n);
rep(i, n) cin >> a[i];
Eratosthenes e(10000);
vector<set<pii>> div(10010);
vector<vector<int>> divs;
rep(i, n){
divs.emplace_back(e.divisor(a[i]));
for(auto d: divs.back()){
div[d].emplace(a[i], i);
}
}
cout << a[0] << " ";
int now = a[0], id = 0;
rep(i, n-1){
for(auto d: divs[id]){
div[d].erase({now, id});
}
int min_lcm = INF, res = -1, rid = -1;
for(auto d: divs[id]){
if (div[d].empty()) continue;
auto [min_d, nid] = *div[d].begin();
if (min_lcm > lcm(min_d, now)){
min_lcm = lcm(min_d, now);
res = min_d;
rid = nid;
}
}
now = res;
id = rid;
cout << now << " ";
}
cout << endl;
return 0;
}