fork download
copy 
  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main(){
  5.  
  6.     int rows;
  7.     // Getting the number of rows.
  8.     cout << "Enter the Number of rows - ";
  9.     cin >> rows;
  10.  
  11.     cout << "Pascal's Triangle of " << rows << " rows." << endl;
  12.  
  13.     // Main logic to print Pascal's triangle.
  14.     for( int i = 0; i <  rows; i++){
  15.         int spaces = rows - i;
  16.         // Print spaces.
  17.         for( int j = 0; j < spaces; j++){
  18.             cout<<"  ";
  19.         }
  20.  
  21.         int coefficient;
  22.         // Print values.
  23.         for( int j = 0; j <= i; j++){
  24.             // Update coefficient's value
  25.             if( j == 0 )
  26.                 coefficient = 1;
  27.             else 
  28.                 coefficient = coefficient * (i - j + 1) / j;
  29.  
  30.             cout << coefficient << "   ";
  31.         }
  32.  
  33.         cout << endl;
  34.     }
  35.  
  36.  
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin
copy 
6
stdout
copy 
Enter the Number of rows - Pascal's Triangle of 6 rows.
            1   
          1   1   
        1   2   1   
      1   3   3   1   
    1   4   6   4   1   
  1   5   10   10   5   1
https://ideone.com/LiB4ar
Print Pascal's triangle
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!