C++ Exercises: Display Pascal's triangle like right angle triangle
46. Pascal's Triangle as Right-Angle Triangle
Write a C++ program to display Pascal's triangle like a right angle triangle.
Sample Solution:
C++ Code :
#include <iostream> // Include the input/output stream library
using namespace std; // Using standard namespace
int main() // Main function where the execution of the program starts
{
int row, c = 1, blk, i, j; // Declare integer variables row, c, blk, i, and j
// Display message asking for input
cout << "\n\n Display the Pascal's triangle like right angle triangle:\n";
cout << "-------------------------------------------------------------\n";
cout << " Input number of rows: ";
cin >> row; // Read input for the number of rows from the user
for (i = 0; i < row; i++) // Loop for the number of rows
{
for (j = 0; j <= i; j++) // Loop to calculate and print the numbers in each row
{
if (j == 0 || i == 0) // Check if it's the first column or the first row
c = 1; // Assign 1 to 'c' if it's the first column or the first row
else
c = c * (i - j + 1) / j; // Calculate the next number using the previous value
cout << c << " "; // Print the calculated number followed by spaces for formatting
}
cout << endl; // Move to the next line after each row is printed
}
}
Sample Output:
Display the Pascal's triangle lime right angle triangle: ------------------------------------------------------------- Input number of rows: 7 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 1 6 15 20 15 6 1
Flowchart:

For more Practice: Solve these Related Problems:
- Write a C++ program to display Pascal's Triangle in a left-aligned (right-angle) format using loops.
- Write a C++ program to generate Pascal's Triangle as a right-angled triangle with each row printed on a new line.
- Write a C++ program that outputs Pascal's Triangle in a format where each row starts from the left margin without centering.
- Write a C++ program to compute and print Pascal's Triangle in a right-angle style using iterative loops.
C++ Code Editor:
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Next: Write a program in C++ to display such a pattern for n number of rows using number. Each row will contain odd numbers of number.
The first and last number of each row will be 1 and middle column will be the row number.
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