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Solve 290. Word Pattern

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	`1`	`+class Solution {`
	`2`	`+`
	`3`	`+ fun wordPattern(pattern: String, s: String): Boolean {`
	`4`	`+ val patternMap = mutableMapOf<Char, String>()`
	`5`	`+ val strings = s.split(" ")`
	`6`	`+`
	`7`	`+ if (pattern.length != strings.size) return false`
	`8`	`+`
	`9`	`+ for (i in 0 until pattern.length) {`
	`10`	`+ val char = pattern[i]`
	`11`	`+ val string = strings[i]`
	`12`	`+`
	`13`	`+ if (patternMap.getOrDefault(char, string) != string) {`
	`14`	`+ return false`
	`15`	`+ }`
	`16`	`+`
	`17`	`+ patternMap[char] = string`
	`18`	`+ }`
	`19`	`+`
	`20`	`+ return patternMap.values.toSet().size == patternMap.size`
	`21`	`+ }`
	`22`	`+`
	`23`	`+}`

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