C++ Exercises: Display Pascal's triangle like pyramid

C++ For Loop: Exercise-45 with Solution

Write a C++ program to display Pascal's triangle like a pyramid.

Construction of Pascal's Triangle:

As shown in Pascal's triangle, each element is equal to the sum of the two numbers immediately above it.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

int main()
{
    int row,c=1,blk,i,j;
    cout << "\n\n Display the Pascal's triangle:\n";
    cout << "-----------------------------------\n";
    cout << " Input number of rows: ";
    cin >> row;
    for(i=0;i<row;i++)
    {
        for(blk=1;blk<=row-i;blk++)
        cout<<"  ";
        for(j=0;j<=i;j++)
        {
            if (j==0||i==0)
                c=1;
            else
               c=c*(i-j+1)/j;
            cout<<c<<"   ";
        }
        cout<<endl;
    }
}

Sample Output:

 Display the Pascal's triangle:                                        
-----------------------------------                                    
 Input number of rows: 5                                               
          1                                                            
        1   1                                                          
      1   2   1                                                        
    1   3   3   1                                                      
  1   4   6   4   1 

Flowchart:

C++ Code Editor:

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