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Create 0838-push-dominoes.kt

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	`1`	`+classSolution {`
	`2`	`+funpushDominoes(d:String):String {`
	`3`	`+val domArr= d.toCharArray()`
	`4`	`+val q=LinkedList<Pair<Int,Char>>()`
	`5`	`+`
	`6`	`+for ((i, v)in domArr.withIndex()) {`
	`7`	`+if (v!='.')`
	`8`	`+ q.addLast(i to v)`
	`9`	`+ }`
	`10`	`+`
	`11`	`+while (q.isNotEmpty()) {`
	`12`	`+val (i, v)= q.removeFirst()`
	`13`	`+if (v=='L'&& i>0&& domArr[i-1]=='.') {`
	`14`	`+ q.addLast(i-1 to'L')`
	`15`	`+ domArr[i-1]='L'`
	`16`	`+ }elseif (v=='R') {`
	`17`	`+if (i+1< domArr.size&& domArr[i+1]=='.') {`
	`18`	`+if (i+2< domArr.size&& domArr[i+2]=='L') {`
	`19`	`+ q.removeFirst()`
	`20`	`+ }else {`
	`21`	`+ q.addLast(i+1 to'R')`
	`22`	`+ domArr[i+1]='R'`
	`23`	`+ }`
	`24`	`+ }`
	`25`	`+ }`
	`26`	`+ }`
	`27`	`+`
	`28`	`+returnString(domArr)`
	`29`	`+ }`
	`30`	`+}`

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