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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using namespace std;
  5.  
  6. void solve(string s, int n=0)
  7. {
  8.     if(s.size() > 0)
  9.     {
  10.         solve(s.substr(0, s.size() - 1), n + 1);
  11.         cout << string(n, ' ') << s << endl;
  12.     }
  13. }
  14.  
  15. int main(){
  16.     int n;
  17.     cin >> n;
  18.     solve(string(n, '#'));
  19.     return 0;
  20. }
Success #stdin #stdout 0s 3460KB
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    #
   ##
  ###
 ####
#####
https://ideone.com/U80PJH
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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