添加 0053.最大子序和、0135分发糖果和0455分发饼干的 Rust版本

problems/0053.最大子序和.md

@@ -212,6 +212,20 @@ func maxSubArray(nums []int) int {
 }
 ```
 
+### Rust
+```rust
+pub fn max_sub_array(nums: Vec<i32>) -> i32 {
+    let mut max_sum = i32::MIN;
+    let mut curr = 0;
+    for n in nums.iter() {
+        curr += n;
+        max_sum = max_sum.max(curr);
+        curr = curr.max(0);
+    }
+    max_sum
+}
+```
+
 ### Javascript:
 ```Javascript
 var maxSubArray = function(nums) {

problems/0135.分发糖果.md

@@ -213,6 +213,25 @@ func findMax(num1 int ,num2 int) int{
 }
 ```
 
+### Rust
+```rust
+pub fn candy(ratings: Vec<i32>) -> i32 {
+    let mut candies = vec![1i32; ratings.len()];
+    for i in 1..ratings.len() {
+        if ratings[i - 1] < ratings[i] {
+            candies[i] = candies[i - 1] + 1;
+        }
+    }
+
+    for i in (0..ratings.len()-1).rev() {
+        if ratings[i] > ratings[i + 1] {
+            candies[i] = candies[i].max(candies[i + 1] + 1);
+        }
+    }
+    candies.iter().sum()
+}
+```
+
 ### Javascript:
 ```Javascript
 var candy = function(ratings) {

problems/0455.分发饼干.md

@@ -191,6 +191,26 @@ func findContentChildren(g []int, s []int) int {
 }
 ```
 
+### Rust
+```rust
+pub fn find_content_children(children: Vec<i32>, cookie: Vec<i32>) -> i32 {
+    let mut children = children;
+    let mut cookies = cookie;
+    children.sort();
+    cookies.sort();
+
+    let (mut child, mut cookie) = (0usize, 0usize);
+    while child < children.len() && cookie < cookies.len() {
+        // 优先选择最小饼干喂饱孩子
+        if children[child] <= cookies[cookie] {
+            child += 1;
+        }
+        cookie += 1
+    }
+    child as i32
+}
+```
+
 ### Javascript
 ```js
 var findContentChildren = function(g, s) {