Merge pull request #2784 from LLjjj-zed/master

feat: 新增部分题目Rust解法

problems/0189.旋转数组.md

@@ -199,7 +199,17 @@ function reverseByRange(nums: number[], left: number, right: number): void {
 }
 ```
 
-
+### Rust
+```rust
+impl Solution {
+    pub fn rotate(nums: &mut Vec<i32>, k: i32) {
+        let k = k as usize % nums.len();
+        nums.reverse();
+        nums[..k].reverse();
+        nums[k..].reverse();
+    }
+}
+```
 
 
 <p align="center">

problems/0283.移动零.md

@@ -169,7 +169,20 @@ void moveZeroes(int* nums, int numsSize){
 }
 ```
 
-
+### Rust
+```rust
+impl Solution {
+    pub fn move_zeroes(nums: &mut Vec<i32>) {
+        let mut slow = 0;
+        for fast in 0..nums.len() {
+            if nums[fast] != 0 {
+                nums.swap(slow, fast);
+                slow += 1;
+            }
+        }
+    }
+}
+```
 
 
 

problems/0941.有效的山脉数组.md

@@ -196,7 +196,22 @@ public class Solution {
 }
 ```
 
-
+### Rust
+```rust
+impl Solution {
+    pub fn valid_mountain_array(arr: Vec<i32>) -> bool {
+        let mut i = 0;
+        let mut j = arr.len() - 1;
+        while i < arr.len() - 1 && arr[i] < arr[i + 1] {
+            i += 1;
+        }
+        while j > 0 && arr[j] < arr[j - 1] {
+            j -= 1;
+        }
+        i > 0 && j < arr.len() - 1 && i == j
+    }
+}
+```
 
 <p align="center">
 <a href="https://programmercarl.com/other/kstar.html" target="_blank">

problems/1207.独一无二的出现次数.md

@@ -221,6 +221,28 @@ func uniqueOccurrences(arr []int) bool {
 }
 ```
 
+### Rust
+
+```rust
+use std::collections::{HashMap, HashSet};
+impl Solution {
+    pub fn unique_occurrences(arr: Vec<i32>) -> bool {
+        let mut hash = HashMap::<i32, i32>::new();
+        for x in arr {
+            *hash.entry(x).or_insert(0) += 1;
+        }
+        let mut set = HashSet::<i32>::new();
+        for (_k, v) in hash {
+            if set.contains(&v) {
+                return false
+            } else {
+                set.insert(v);
+            }
+        }
+        true
+    }
+}
+```
 
 
 

problems/1365.有多少小于当前数字的数字.md

@@ -260,6 +260,22 @@ function smallerNumbersThanCurrent(nums: number[]): number[] {
 };
 ```
 
+### rust
+```rust
+use std::collections::HashMap;
+impl Solution {
+    pub fn smaller_numbers_than_current(nums: Vec<i32>) -> Vec<i32> {
+        let mut v = nums.clone();
+        v.sort();
+        let mut hash = HashMap::new();
+        for i in 0..v.len() {
+            // rust中使用or_insert插入值, 如果存在就不插入,可以使用正序遍历
+            hash.entry(v[i]).or_insert(i as i32);
+        }
+        nums.into_iter().map(|x| *hash.get(&x).unwrap()).collect()
+    }
+}
+```
 
 
 <p align="center">