How to print Pascal's Triangle Pattern in C++

How to print Pascal's Triangle Pattern in C++ ?

Answer

To print Pascal's Triangle Pattern in C++, you can use nested loops where the outer loop controls the rows and the inner loop calculates the values for each row based on the binomial coefficient formula.

✐ Examples

1 Pascal's Triangle Pattern

In this example,

We use a variable n to represent the number of rows in Pascal's triangle.
We initialize a 2D array pascal to store the triangle values.
We use nested loops to calculate and store the values using the binomial coefficient formula.
We print the triangle values using a formatted output.

C++ Program

#include <iostream>
using namespace std;

void printPascalsTriangle(int n) {
    int pascal[n][n];
    for (int i = 0; i < n; i++) {
        for (int j = 0; j <= i; j++) {
            if (j == 0 || j == i) {
                pascal[i][j] = 1;
            } else {
                pascal[i][j] = pascal[i - 1][j - 1] + pascal[i - 1][j];
            }
            cout << pascal[i][j] << " ";
        }
        cout << endl;
    }
}

int main() {
    int rows = 5;
    printPascalsTriangle(rows);
    return 0;
}

Output

Summary

In this tutorial, we learned How to print Pascal's Triangle Pattern in C++ language with well detailed examples.

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