feat: add rust solution to lc problem: No.2696 (#1076)

Author: dierbei

solution/2600-2699/2696.Minimum String Length After Removing Substrings/README.md

@@ -149,6 +149,32 @@ function minLength(s: string): number {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn min_length(s: String) -> i32 {
+        let mut ans: Vec<u8> = Vec::new();
+
+        for c in s.bytes() {
+            if let Some(last) = ans.last() {
+                if *last == b'A' && c == b'B' {
+                    ans.pop();
+                } else if *last == b'C' && c == b'D' {
+                    ans.pop();
+                } else {
+                    ans.push(c);
+                }
+            } else {
+                ans.push(c);
+            }
+        }
+
+        ans.len() as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2600-2699/2696.Minimum String Length After Removing Substrings/README_EN.md

@@ -131,6 +131,32 @@ function minLength(s: string): number {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn min_length(s: String) -> i32 {
+        let mut ans: Vec<u8> = Vec::new();
+
+        for c in s.bytes() {
+            if let Some(last) = ans.last() {
+                if *last == b'A' && c == b'B' {
+                    ans.pop();
+                } else if *last == b'C' && c == b'D' {
+                    ans.pop();
+                } else {
+                    ans.push(c);
+                }
+            } else {
+                ans.push(c);
+            }
+        }
+
+        ans.len() as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2600-2699/2696.Minimum String Length After Removing Substrings/Solution.rs

@@ -0,0 +1,21 @@
+impl Solution {
+    pub fn min_length(s: String) -> i32 {
+        let mut ans: Vec<u8> = Vec::new();
+
+        for c in s.bytes() {
+            if let Some(last) = ans.last() {
+                if *last == b'A' && c == b'B' {
+                    ans.pop();
+                } else if *last == b'C' && c == b'D' {
+                    ans.pop();
+                } else {
+                    ans.push(c);
+                }
+            } else {
+                ans.push(c);
+            }
+        }
+
+        ans.len() as i32
+    }
+}