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exercism-86 Darts

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`@@ -311,6 +311,7 @@ solution of many challenges of [Leetcode](https://leetcode.com/), [Exercism](htt`
`311`	`311`	`83. [ISBN Verifier](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/isbn_verifier.rb)`
`312`	`312`	`84. [Complex Number](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/complex_number.rb)`
`313`	`313`	`85. [Microwave](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/microwave.rb)`
	`314`	`+86. [Darts](https://github.com/kumar91gopi/Algorithms-and-Data-Structures-in-Ruby/blob/master/exercism/darts.rb)`
`314`	`315`
`315`	`316`	`<a name="leetcode"/>`
`316`	`317`

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`@@ -0,0 +1,28 @@`
	`1`	`+# Problem: https://exercism.org/tracks/ruby/exercises/darts`
	`2`	`+`
	`3`	`+# Solution`
	`4`	`+class Darts`
	`5`	`+`
	`6`	`+ def initialize(x,y)`
	`7`	`+ @x=x`
	`8`	`+ @y=y`
	`9`	`+ end`
	`10`	`+`
	`11`	`+ def score`
	`12`	`+ distance = Math.sqrt(@x@x + @y@y)`
	`13`	`+`
	`14`	`+ if distance <=1`
	`15`	`+ return 10`
	`16`	`+ end`
	`17`	`+`
	`18`	`+ if distance<=5`
	`19`	`+ return 5`
	`20`	`+ end`
	`21`	`+`
	`22`	`+ if distance<=10`
	`23`	`+ return 1`
	`24`	`+ end`
	`25`	`+`
	`26`	`+ return 0`
	`27`	`+ end`
	`28`	`+end`

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