To print power set of a set of characters. created by hygull - https://repl.it/FDa4/5

To print power set of a set of characters..go

/*
   #Date of creation : 9 Jan 2016.
   #Aim of program   : To print power set of a set of characters.
   #Coded by         : Rishikesh Agrawani.
*/
package main

import "fmt"

func main() {
	var n, r, i, j uint
	fmt.Print("Enter the number of binary variables(for which you want the binary combinations): ")
	fmt.Scanf("%d", &n)
	fmt.Print("\nEnter ",n," binary variables name( name should be only 1 character long) separated by space: ")
	
	a:=make([]string,n)
	r = 1
	for i = 0; i < n; i++ {
	    fmt.Scanf("%s",&a[i])
		r *= 2

	}
	fmt.Println("\nColumns => ", n, "\nRows    => ", r)

	for i = 0; i < r; i++ {
		for j = 0; j < n; j++ {
			if (i>>j)&1 == 1 {
				fmt.Print(a[j]," ")
			} else {
				fmt.Print("- ")
			}
		}
		fmt.Println()
	}
}
/*1st RUN:

Enter the number of binary variables(for which you want the binary combinations):  4

Enter 4 binary variables name( name should be only 1 character long) separated by space:  a b c d

Columns =>  4 
Rows    =>  16
- - - - 
a - - - 
- b - - 
a b - - 
- - c - 
a - c - 
- b c - 
a b c - 
- - - d 
a - - d 
- b - d 
a b - d 
- - c d 
a - c d 
- b c d 
a b c d 
*/


/*2nd RUN:

Enter the number of binary variables(for which you want the binary combinations): 5
Enter 5 binary variables name( name should be only 1 character long) separated by space: p q r s t
Columns =>  5 
Rows    =>  32
- - - - - 
p - - - - 
- q - - - 
p q - - - 
- - r - - 
p - r - - 
- q r - - 
p q r - - 
- - - s - 
p - - s - 
- q - s - 
p q - s - 
- - r s - 
p - r s - 
- q r s - 
p q r s - 
- - - - t 
p - - - t 
- q - - t 
p q - - t 
- - r - t 
p - r - t 
- q r - t 
p q r - t 
- - - s t 
p - - s t 
- q - s t 
p q - s t 
- - r s t 
p - r s t 
- q r s t 
p q r s t
*/