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Commitda0dca2

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Create 438-Find-All-Anagrams-In-A-String.kt
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classSolution {
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funfindAnagrams(s:String,p:String):List<Int> {
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val pCount=IntArray(26)
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val res=ArrayList<Int>()
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for(cin p)
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pCount[c-'a']++
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var start=0
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var end=0
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while(end< s.length){
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// increase the window
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if(pCount[s[end]-'a']>0){
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pCount[s[end++]-'a']--
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if(end-start== p.length)
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res.add(start)
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// window size 0? step to next
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}elseif(start== end){
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start++
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end++
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//decrease the window
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}else{
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pCount[s[start++]-'a']++
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}
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}
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return res
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}
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}

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