feat: add rust solutions to lc problems

No.0026,0027,0080,0169,0283

Author: maolonglong

solution/0000-0099/0026.Remove Duplicates from Sorted Array/README.md

@@ -171,6 +171,23 @@ public class Solution {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i == 0 || nums[i] != nums[len - 1] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0026.Remove Duplicates from Sorted Array/README_EN.md

@@ -151,6 +151,23 @@ public class Solution {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i == 0 || nums[i] != nums[len - 1] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0026.Remove Duplicates from Sorted Array/Solution.rs

@@ -0,0 +1,12 @@
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i == 0 || nums[i] != nums[len - 1] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}

solution/0000-0099/0027.Remove Element/README.md

@@ -151,6 +151,23 @@ func removeElement(nums []int, val int) int {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if nums[i] != val {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0027.Remove Element/README_EN.md

@@ -139,6 +139,23 @@ func removeElement(nums []int, val int) int {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if nums[i] != val {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0027.Remove Element/Solution.rs

@@ -0,0 +1,12 @@
+impl Solution {
+    pub fn remove_element(nums: &mut Vec<i32>, val: i32) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if nums[i] != val {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}

solution/0000-0099/0080.Remove Duplicates from Sorted Array II/README.md

@@ -171,6 +171,23 @@ func removeDuplicates(nums []int) int {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i < 2 || nums[i] != nums[len - 2] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0080.Remove Duplicates from Sorted Array II/README_EN.md

@@ -152,6 +152,23 @@ func removeDuplicates(nums []int) int {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i < 2 || nums[i] != nums[len - 2] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}
+```
+
 ### **...**
 
 ```

solution/0000-0099/0080.Remove Duplicates from Sorted Array II/Solution.rs

@@ -0,0 +1,12 @@
+impl Solution {
+    pub fn remove_duplicates(nums: &mut Vec<i32>) -> i32 {
+        let mut len = 0;
+        for i in 0..nums.len() {
+            if i < 2 || nums[i] != nums[len - 2] {
+                nums[len] = nums[i];
+                len += 1;
+            }
+        }
+        len as i32
+    }
+}

solution/0100-0199/0169.Majority Element/README.md

@@ -165,6 +165,26 @@ func majorityElement(nums []int) int {
 }
 ```
 
+### **Rust**
+
+```rs
+impl Solution {
+    pub fn majority_element(nums: Vec<i32>) -> i32 {
+        let mut major = 0;
+        let mut cnt = 0;
+        for &num in nums.iter() {
+            if cnt == 0 {
+                major = num;
+                cnt = 1;
+            } else {
+                cnt += if major == num { 1 } else { -1 };
+            }
+        }
+        major
+    }
+}
+```
+
 ### **...**
 
 ```