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exercism-73 Secret handshake

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`@@ -294,6 +294,7 @@ solution of many challenges of [Leetcode](https://leetcode.com/), [Exercism](htt`
`294`	`294`	`70. [Beer Song](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/beer_song.rb)`
`295`	`295`	`71. [Protein Translation](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/protein_translation.rb)`
`296`	`296`	`72. [Wordy](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/wordy.rb)`
	`297`	`+73. [Secret Handshake](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/secret_handshake.rb)`
`297`	`298`
`298`	`299`	`<a name="leetcode"/>`
`299`	`300`

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`@@ -0,0 +1,40 @@`
	`1`	`+# Problem: https://exercism.org/tracks/ruby/exercises/secret-handshake`
	`2`	`+`
	`3`	`+# Solution`
	`4`	`+class SecretHandshake`
	`5`	`+ ACTIONS = ["wink", "double blink", "close your eyes", "jump"]`
	`6`	`+`
	`7`	`+ def initialize(number)`
	`8`	`+ @number = number.is_a?(Integer) ? number : 0`
	`9`	`+ end`
	`10`	`+`
	`11`	`+ def commands`
	`12`	`+ actions =[]`
	`13`	`+ bit_len = @number.digits(2).length`
	`14`	`+ return actions if @number.zero?`
	`15`	`+`
	`16`	`+ for i in 0..(bit_len>3 ? 3 : bit_len)`
	`17`	`+ actions.push(ACTIONS[i]) if (@number & (1<<i)) >0`
	`18`	`+ end`
	`19`	`+ @number & (1<<4) >0 ? (actions.reverse) : actions`
	`20`	`+ end`
	`21`	`+end`
	`22`	`+`
	`23`	`+# Solution 2`
	`24`	`+class SecretHandshake`
	`25`	`+ ACTIONS = ["wink", "double blink", "close your eyes", "jump"]`
	`26`	`+ def initialize(number)`
	`27`	`+ @binary_digits = number.is_a?(Integer) ? (number.digits(2)) : []`
	`28`	`+ end`
	`29`	`+`
	`30`	`+ def commands`
	`31`	`+ actions =[]`
	`32`	`+ return actions if @binary_digits.empty?`
	`33`	`+`
	`34`	`+ len = @binary_digits.length`
	`35`	`+ for i in 0...(len>4 ? len-1 : len)`
	`36`	`+ actions.push(ACTIONS[i]) if @binary_digits[i]==1`
	`37`	`+ end`
	`38`	`+ (len>4 and @binary_digits[-1]==1) ? (actions.reverse) : actions`
	`39`	`+ end`
	`40`	`+end`

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