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feat: add rust solution to lcof problem: No.04

剑指 Offer 04. 二维数组中的查找

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Lines changed: 31 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -179,6 +179,37 @@ function findNumberIn2DArray(matrix: number[][], target: number): boolean {`
`179`	`179`	`}`
`180`	`180`	```
`181`	`181`
	`182`	`+### Rust`
	`183`	`+`
	`184`	+```rust
	`185`	`+impl Solution {`
	`186`	`+ pub fn find_number_in2_d_array(matrix: Vec<Vec<i32>>, target: i32) -> bool {`
	`187`	`+ let len_y = matrix.len();`
	`188`	`+ if len_y == 0 {`
	`189`	`+ return false;`
	`190`	`+ }`
	`191`	`+ let len_x = matrix[0].len();`
	`192`	`+ if len_x == 0 {`
	`193`	`+ return false;`
	`194`	`+ }`
	`195`	`+`
	`196`	`+ let mut x = len_x - 1;`
	`197`	`+ let mut y = 0;`
	`198`	`+ while y < len_y {`
	`199`	`+ match target.cmp(&matrix[y][x]) {`
	`200`	`+ std::cmp::Ordering::Greater => y += 1,`
	`201`	`+ std::cmp::Ordering::Equal => return true,`
	`202`	`+ std::cmp::Ordering::Less => match x {`
	`203`	`+ 0 => return false,`
	`204`	`+ _ => x -= 1,`
	`205`	`+ },`
	`206`	`+ }`
	`207`	`+ }`
	`208`	`+ false`
	`209`	`+ }`
	`210`	`+}`
	`211`	+```
	`212`	`+`
`182`	`213`	`### ...`
`183`	`214`
`184`	`215`	```

Lines changed: 26 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,26 @@`
	`1`	`+impl Solution {`
	`2`	`+ pub fn find_number_in2_d_array(matrix: Vec<Vec<i32>>, target: i32) -> bool {`
	`3`	`+ let len_y = matrix.len();`
	`4`	`+ if len_y == 0 {`
	`5`	`+ return false;`
	`6`	`+ }`
	`7`	`+ let len_x = matrix[0].len();`
	`8`	`+ if len_x == 0 {`
	`9`	`+ return false;`
	`10`	`+ }`
	`11`	`+`
	`12`	`+ let mut x = len_x - 1;`
	`13`	`+ let mut y = 0;`
	`14`	`+ while y < len_y {`
	`15`	`+ match target.cmp(&matrix[y][x]) {`
	`16`	`+ std::cmp::Ordering::Greater => y += 1,`
	`17`	`+ std::cmp::Ordering::Equal => return true,`
	`18`	`+ std::cmp::Ordering::Less => match x {`
	`19`	`+ 0 => return false,`
	`20`	`+ _ => x -= 1,`
	`21`	`+ },`
	`22`	`+ }`
	`23`	`+ }`
	`24`	`+ false`
	`25`	`+ }`
	`26`	`+}`

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