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Update 1239-maximum-length-of-a-concatenated-string-with-unique-characters.kt

simplify solution

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-11

lines changed

Lines changed: 6 additions & 11 deletions

Original file line number	Diff line number	Diff line change
`@@ -3,8 +3,12 @@ class Solution {`
`3`	`3`	`val charSet=HashSet<Char>()`
`4`	`4`
`5`	`5`	`funoverlap(s:String):Boolean {`
`6`		`-val count= s.freqThisAndSet(charSet)`
`7`		`-return count.values.max()>1`
	`6`	`+val count=IntArray (26)`
	`7`	`+`
	`8`	`+for (cin s) count[c-'a']++`
	`9`	`+for (cin charSet) count[c-'a']++`
	`10`	`+`
	`11`	`+return count.any { it>1 }`
`8`	`12`	`}`
`9`	`13`
`10`	`14`	`funbacktrack(i:Int):Int {`
`@@ -25,13 +29,4 @@ class Solution {`
`25`	`29`
`26`	`30`	`return backtrack(0)`
`27`	`31`	`}`
`28`		`-`
`29`		`-fun String.freqThisAndSet(set:HashSet<Char>)= buildMap<Char,Int> {`
`30`		`-this@freqThisAndSet.forEach { c->`
`31`		`-this[c]= getOrDefault(c,0)+1`
`32`		`- }`
`33`		`- set.forEach { c->`
`34`		`-this[c]= getOrDefault(c,0)+1`
`35`		`- }`
`36`		`- }`
`37`	`32`	`}`

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