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Commit 4a28611

dierbei dierbei

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feat: add rust solution to lc problem: No.2485 (#1306)

Signed-off-by: xiaolatiao <1628652790@qq.com>

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solution/2400-2499/2485.Find the Pivot Integer

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`‎solution/2400-2499/2485.Find the Pivot Integer/README.md‎`

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Original file line number	Diff line number	Diff line change
`@@ -223,6 +223,23 @@ class Solution {`
`223`	`223`	`}`
`224`	`224`	```
`225`	`225`
	`226`	`+### Rust`
	`227`	`+`
	`228`	+```rust
	`229`	`+impl Solution {`
	`230`	`+ pub fn pivot_integer(n: i32) -> i32 {`
	`231`	`+ let y = n * (n + 1) / 2;`
	`232`	`+ let x = (y as f64).sqrt() as i32;`
	`233`	`+`
	`234`	`+ if x * x == y {`
	`235`	`+ return x;`
	`236`	`+ }`
	`237`	`+`
	`238`	`+ -1`
	`239`	`+ }`
	`240`	`+}`
	`241`	+```
	`242`	`+`
`226`	`243`	`### ...`
`227`	`244`
`228`	`245`	```

`‎solution/2400-2499/2485.Find the Pivot Integer/README_EN.md‎`

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`@@ -186,6 +186,23 @@ class Solution {`
`186`	`186`	`}`
`187`	`187`	```
`188`	`188`
	`189`	`+### Rust`
	`190`	`+`
	`191`	+```rust
	`192`	`+impl Solution {`
	`193`	`+ pub fn pivot_integer(n: i32) -> i32 {`
	`194`	`+ let y = n * (n + 1) / 2;`
	`195`	`+ let x = (y as f64).sqrt() as i32;`
	`196`	`+`
	`197`	`+ if x * x == y {`
	`198`	`+ return x;`
	`199`	`+ }`
	`200`	`+`
	`201`	`+ -1`
	`202`	`+ }`
	`203`	`+}`
	`204`	+```
	`205`	`+`
`189`	`206`	`### ...`
`190`	`207`
`191`	`208`	```

`‎solution/2400-2499/2485.Find the Pivot Integer/Solution.rs‎`

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`@@ -0,0 +1,12 @@`
	`1`	`+impl Solution {`
	`2`	`+ pub fn pivot_integer(n: i32) -> i32 {`
	`3`	`+ let y = n * (n + 1) / 2;`
	`4`	`+ let x = (y as f64).sqrt() as i32;`
	`5`	`+`
	`6`	`+ if x * x == y {`
	`7`	`+ return x;`
	`8`	`+ }`
	`9`	`+`
	`10`	`+ -1`
	`11`	`+ }`
	`12`	`+}`

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