Go Program to Print Pascal Triangle

Write a Go program to print the pascal triangle number pattern using for loop.

package main

import (
	"fmt"
	"strconv"
)

func main() {

	var i, j, row, number int

	fmt.Print("Enter Pascals Number Triangle Pattern Rows = ")
	fmt.Scanln(&row)

	fmt.Println("**** Pascals Number Triangle Pattern ****")

	for i = 0; i < row; i++ {
		number = 1
		fmt.Printf("%"+strconv.Itoa((row-i)*2)+"s", "")
		for j = 0; j <= i; j++ {
			fmt.Printf("%4d", number)
			number = number * (i - j) / (j + 1)
		}
		fmt.Println()
	}
}

It is another way of writing a golang program to print the pascals triangle of numbers.

package main

import "fmt"

func factorialCal(num int) int {
	if num == 0 || num == 1 {
		return 1
	}
	return num * factorialCal(num-1)
}
func main() {

	var i, j, num int

	fmt.Print("Rows to Print the Pascal Triangle = ")
	fmt.Scanln(&num)

	fmt.Println("\nPascal Triangle")
	for i = 0; i < num; i++ {
		for j = 1; j <= num-i-2; j++ {
			fmt.Print(" ")
		}
		for j = 0; j <= i; j++ {
			fmt.Printf("%d ", factorialCal(i)/(factorialCal(j)*factorialCal(i-j)))
		}
		fmt.Println()
	}
}

Rows to Print the Pascal Triangle = 8

Pascal Triangle
      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 
1 7 21 35 35 21 7 1