feat: add rust solution to lc problem: No.2733 (doocs#1043)

Author: dierbei

solution/2700-2799/2733.Neither Minimum nor Maximum/README.md

@@ -131,6 +131,34 @@ func findNonMinOrMax(nums []int) int {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn find_non_min_or_max(nums: Vec<i32>) -> i32 {
+        let mut mi = 100;
+        let mut mx = 0;
+
+        for &ele in nums.iter() {
+            if ele < mi {
+                mi = ele;
+            }
+            if ele > mx {
+                mx = ele;
+            }
+        }
+
+        for &ele in nums.iter() {
+            if ele != mi && ele != mx {
+                return ele;
+            }
+        }
+
+        -1
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2700-2799/2733.Neither Minimum nor Maximum/README_EN.md

@@ -124,6 +124,34 @@ func findNonMinOrMax(nums []int) int {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn find_non_min_or_max(nums: Vec<i32>) -> i32 {
+        let mut mi = 100;
+        let mut mx = 0;
+
+        for &ele in nums.iter() {
+            if ele < mi {
+                mi = ele;
+            }
+            if ele > mx {
+                mx = ele;
+            }
+        }
+
+        for &ele in nums.iter() {
+            if ele != mi && ele != mx {
+                return ele;
+            }
+        }
+
+        -1
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2700-2799/2733.Neither Minimum nor Maximum/Solution.rs

@@ -0,0 +1,23 @@
+impl Solution {
+    pub fn find_non_min_or_max(nums: Vec<i32>) -> i32 {
+        let mut mi = 100;
+        let mut mx = 0;
+
+        for &ele in nums.iter() {
+            if ele < mi {
+                mi = ele;
+            }
+            if ele > mx {
+                mx = ele;
+            }
+        }
+
+        for &ele in nums.iter() {
+            if ele != mi && ele != mx {
+                return ele;
+            }
+        }
+
+        -1
+    }
+}