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feat: add rust solution to lc problem: No.0287 (doocs#1648)

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Lines changed: 27 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -126,6 +126,33 @@ public:`
`126`	`126`	`};`
`127`	`127`	```
`128`	`128`
	`129`	`+### Rust`
	`130`	`+`
	`131`	+```rust
	`132`	`+impl Solution {`
	`133`	`+ #[allow(dead_code)]`
	`134`	`+ pub fn find_duplicate(nums: Vec<i32>) -> i32 {`
	`135`	`+ let mut left = 0;`
	`136`	`+ let mut right = nums.len() - 1;`
	`137`	`+`
	`138`	`+ while left < right {`
	`139`	`+ let mid = (left + right) >> 1;`
	`140`	`+ let cnt = nums`
	`141`	`+ .iter()`
	`142`	`+ .filter(\|x\| **x <= mid as i32)`
	`143`	`+ .count();`
	`144`	`+ if cnt > mid {`
	`145`	`+ right = mid;`
	`146`	`+ } else {`
	`147`	`+ left = mid + 1;`
	`148`	`+ }`
	`149`	`+ }`
	`150`	`+`
	`151`	`+ left as i32`
	`152`	`+ }`
	`153`	`+}`
	`154`	+```
	`155`	`+`
`129`	`156`	`### Go`
`130`	`157`
`131`	`158`	```go

Lines changed: 27 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -107,6 +107,33 @@ public:`
`107`	`107`	`};`
`108`	`108`	```
`109`	`109`
	`110`	`+### Rust`
	`111`	`+`
	`112`	+```rust
	`113`	`+impl Solution {`
	`114`	`+ #[allow(dead_code)]`
	`115`	`+ pub fn find_duplicate(nums: Vec<i32>) -> i32 {`
	`116`	`+ let mut left = 0;`
	`117`	`+ let mut right = nums.len() - 1;`
	`118`	`+`
	`119`	`+ while left < right {`
	`120`	`+ let mid = (left + right) >> 1;`
	`121`	`+ let cnt = nums`
	`122`	`+ .iter()`
	`123`	`+ .filter(\|x\| **x <= mid as i32)`
	`124`	`+ .count();`
	`125`	`+ if cnt > mid {`
	`126`	`+ right = mid;`
	`127`	`+ } else {`
	`128`	`+ left = mid + 1;`
	`129`	`+ }`
	`130`	`+ }`
	`131`	`+`
	`132`	`+ left as i32`
	`133`	`+ }`
	`134`	`+}`
	`135`	+```
	`136`	`+`
`110`	`137`	`### Go`
`111`	`138`
`112`	`139`	```go

Lines changed: 22 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,22 @@`
	`1`	`+impl Solution {`
	`2`	`+ #[allow(dead_code)]`
	`3`	`+ pub fn find_duplicate(nums: Vec<i32>) -> i32 {`
	`4`	`+ let mut left = 0;`
	`5`	`+ let mut right = nums.len() - 1;`
	`6`	`+`
	`7`	`+ while left < right {`
	`8`	`+ let mid = (left + right) >> 1;`
	`9`	`+ let cnt = nums`
	`10`	`+ .iter()`
	`11`	`+ .filter(\|x\| **x <= mid as i32)`
	`12`	`+ .count();`
	`13`	`+ if cnt > mid {`
	`14`	`+ right = mid;`
	`15`	`+ } else {`
	`16`	`+ left = mid + 1;`
	`17`	`+ }`
	`18`	`+ }`
	`19`	`+`
	`20`	`+ left as i32`
	`21`	`+ }`
	`22`	`+}`

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