fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std ;
  3. #define endl "\n"
  4.  
  5. int n ;
  6. void Try(string s){
  7.     int length = s.size();
  8.     if(length == n ){
  9.         if(s[length - 1] == '6')
  10.             cout << s << endl ;
  11.         return ;
  12.     }
  13.  
  14.     if(s[length - 1] == '8') Try(s + "6");
  15.     else{
  16.         if(length < 4) Try(s + "6");
  17.         else if(s[length - 2] == '8' || s[length - 3] == '8') Try(s + "6");
  18.         else Try(s + "8");
  19.     }
  20. }
  21.  
  22. int main(){
  23.     ios::sync_with_stdio(false);
  24.     cin.tie(nullptr);
  25.     cout.tie(nullptr);
  26.  
  27.     cin >> n ;
  28.     Try("8");
  29. }
Success #stdin #stdout 0.01s 5276KB
comments (?)
stdin
copy 
6
stdout
copy 
866686
https://ideone.com/1BZXzM
language:
C++ (gcc 8.3)
created:
17 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!