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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int n;
  6.     cin>>n;
  7.     for(int i=1;i<=n;i++){
  8.         for(int j=1;j<=n-i;j++){
  9.             cout<<" ";
  10.         }
  11.         for(int j=1;j<=2*i-1;j++){
  12.             cout<<"*";
  13.         }
  14.         cout<<endl;
  15.     }
  16.     for(int i=n;i>=1;i--){
  17.         for(int j=1;j<=n-i;j++){
  18.             cout<<" ";
  19.         }
  20.         for(int j=1;j<=2*i-1;j++){
  21.             cout<<"*";
  22.         }
  23.         cout<<endl;
  24.     }
  25. }
Success #stdin #stdout 0.01s 5424KB
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stdin
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4
stdout
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   *
  ***
 *****
*******
*******
 *****
  ***
   *
https://ideone.com/iLFnfk
language:
C++ (gcc 8.3)
created:
40 days ago
visibility:
public

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