Submission #1103778

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1103778	2024-10-21 17:00:29	epicci23	Permutation (APIO22_perm)	C++17	100 / 100	277 ms	64328 KiB

perm

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#include "bits/stdc++.h"
//#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
#include "perm.h"
map<long long,vector<int>> cache;
vector<int> f(long long x){
  if(x==1) return {};
  if(cache.count(x)) return cache[x];
  if(x%2==0){
    vector<int> u = f(x/2);
    u.push_back(sz(u));
    return cache[x]=u;
  }
  vector<int> res = f(x/2);
  for(int i=0;i<sz(res);i++) res[i]++;
  res.push_back(sz(res)+1);
  res.push_back(0);
  for(int val : {3,5,7}){
    if(x%val) continue;
    vector<int> cur = f(x/val);
    if(sz(cur)+val-1<sz(res)){
      res=cur;
      cur.clear();
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 90 / 90