Commit 062bfc0

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feat: add rust solution to lc problem: No.1701 (doocs#3241)

Co-authored-by: Libin YANG <contact@yanglibin.info>

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Original file line number	Diff line number	Diff line change
`@@ -161,6 +161,26 @@ function averageWaitingTime(customers: number[][]): number {`
`161`	`161`	`}`
`162`	`162`	```
`163`	`163`
	`164`	`+#### Rust`
	`165`	`+`
	`166`	+```rust
	`167`	`+impl Solution {`
	`168`	`+ pub fn average_waiting_time(customers: Vec<Vec<i32>>) -> f64 {`
	`169`	`+ let mut tot = 0.0;`
	`170`	`+ let mut t = 0;`
	`171`	`+`
	`172`	`+ for e in customers.iter() {`
	`173`	`+ let a = e[0];`
	`174`	`+ let b = e[1];`
	`175`	`+ t = t.max(a) + b;`
	`176`	`+ tot += (t - a) as f64;`
	`177`	`+ }`
	`178`	`+`
	`179`	`+ tot / customers.len() as f64`
	`180`	`+ }`
	`181`	`+}`
	`182`	+```
	`183`	`+`
`164`	`184`	`#### JavaScript`
`165`	`185`
`166`	`186`	```js

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Original file line number	Diff line number	Diff line change
`@@ -159,6 +159,26 @@ function averageWaitingTime(customers: number[][]): number {`
`159`	`159`	`}`
`160`	`160`	```
`161`	`161`
	`162`	`+#### Rust`
	`163`	`+`
	`164`	+```rust
	`165`	`+impl Solution {`
	`166`	`+ pub fn average_waiting_time(customers: Vec<Vec<i32>>) -> f64 {`
	`167`	`+ let mut tot = 0.0;`
	`168`	`+ let mut t = 0;`
	`169`	`+`
	`170`	`+ for e in customers.iter() {`
	`171`	`+ let a = e[0];`
	`172`	`+ let b = e[1];`
	`173`	`+ t = t.max(a) + b;`
	`174`	`+ tot += (t - a) as f64;`
	`175`	`+ }`
	`176`	`+`
	`177`	`+ tot / customers.len() as f64`
	`178`	`+ }`
	`179`	`+}`
	`180`	+```
	`181`	`+`
`162`	`182`	`#### JavaScript`
`163`	`183`
`164`	`184`	```js

Lines changed: 15 additions & 0 deletions

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`@@ -0,0 +1,15 @@`
	`1`	`+impl Solution {`
	`2`	`+ pub fn average_waiting_time(customers: Vec<Vec<i32>>) -> f64 {`
	`3`	`+ let mut tot = 0.0;`
	`4`	`+ let mut t = 0;`
	`5`	`+`
	`6`	`+ for e in customers.iter() {`
	`7`	`+ let a = e[0];`
	`8`	`+ let b = e[1];`
	`9`	`+ t = t.max(a) + b;`
	`10`	`+ tot += (t - a) as f64;`
	`11`	`+ }`
	`12`	`+`
	`13`	`+ tot / customers.len() as f64`
	`14`	`+ }`
	`15`	`+}`

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