How to print Pascal's Triangle Pattern in Kotlin

How to print Pascal's Triangle Pattern in Kotlin ?

Answer

To print Pascal's Triangle Pattern in Kotlin, you can use a nested loop structure 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.

Kotlin Program

fun printPascalsTriangle(n: Int) {
    val pascal = Array(n) { IntArray(n) }
    for (line in 0 until n) {
        for (i in 0..line) {
            if (i == 0 || i == line) {
                pascal[line][i] = 1
            } else {
                pascal[line][i] = pascal[line - 1][i - 1] + pascal[line - 1][i]
            }
            print("${pascal[line][i]} ")
        }
        println()
    }
}

fun main() {
    val rows = 5
    printPascalsTriangle(rows)
}

Output

Summary

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

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