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添加 0096.不同的二叉搜索树.md Scala版本

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Original file line number	Diff line number	Diff line change
`@@ -227,7 +227,7 @@ const numTrees =(n) => {`
`227`	`227`	`};`
`228`	`228`	```
`229`	`229`
`230`		`-TypeScript`
	`230`	`+### TypeScript`
`231`	`231`
`232`	`232`	```typescript
`233`	`233`	`function numTrees(n: number): number {`
`@@ -282,5 +282,22 @@ int numTrees(int n){`
`282`	`282`	`}`
`283`	`283`	```
`284`	`284`
	`285`	`+### Scala`
	`286`	`+`
	`287`	+```scala
	`288`	`+object Solution {`
	`289`	`+ def numTrees(n: Int): Int = {`
	`290`	`+ var dp = new Array[Int](n + 1)`
	`291`	`+ dp(0) = 1`
	`292`	`+ for (i <- 1 to n) {`
	`293`	`+ for (j <- 1 to i) {`
	`294`	`+ dp(i) += dp(j - 1) * dp(i - j)`
	`295`	`+ }`
	`296`	`+ }`
	`297`	`+ dp(n)`
	`298`	`+ }`
	`299`	`+}`
	`300`	+```
	`301`	`+`
`285`	`302`	`-----------------------`
`286`	`303`	`<div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>`

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