Submission #602591

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
602591	2022-07-23 09:05:33	patrikpavic2	Permutation (APIO22_perm)	C++17	100 / 100	1 ms	340 KiB

perm

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#include "perm.h"
#include <vector>
#include <algorithm>
 
#define PB push_back
 
using namespace std;
 
typedef vector < int > vi;
typedef long long ll;
 
vi construct_permutation(long long k){
  k--;
  if(k == 0) return {};
  if(k == 1) return {0};
  if(k == 2) return {1, 0};
  if(k > 7 && k % 7 == 6){
    vi st = construct_permutation((k - 6) / 7 + 1);
    st.PB((int)st.size() + 2);
    st.PB((int)st.size());
    st.PB((int)st.size() + 1);
    st.PB((int)st.size() - 3);
    return st;
  }
  if(k > 5 && k % 5 == 4){
    vi st = construct_permutation((k - 4) / 5 + 1);
    st.PB((int)st.size() + 1);
    st.PB((int)st.size() + 1);
    st.PB((int)st.size() - 2);
    return st;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 90 / 90