feat: add golang solution to lc problems: No. 80,169,283

Author: maolonglong

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

@@ -168,6 +168,21 @@ var removeDuplicates = function (nums) {
 };
 ```
 
+### **Go**
+
+```go
+func removeDuplicates(nums []int) int {
+	i := 0
+	for _, num := range nums {
+		if i < 2 || num != nums[i-2] {
+			nums[i] = num
+			i++
+		}
+	}
+	return i
+}
+```
+
 ### **...**
 
 ```

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

@@ -148,6 +148,21 @@ var removeDuplicates = function (nums) {
 };
 ```
 
+### **Go**
+
+```go
+func removeDuplicates(nums []int) int {
+	i := 0
+	for _, num := range nums {
+		if i < 2 || num != nums[i-2] {
+			nums[i] = num
+			i++
+		}
+	}
+	return i
+}
+```
+
 ### **...**
 
 ```

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

@@ -0,0 +1,10 @@
+func removeDuplicates(nums []int) int {
+	i := 0
+	for _, num := range nums {
+		if i < 2 || num != nums[i-2] {
+			nums[i] = num
+			i++
+		}
+	}
+	return i
+}

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

@@ -145,6 +145,27 @@ public class Solution {
 }
 ```
 
+### **Go**
+
+```go
+func majorityElement(nums []int) int {
+    var cnt, major int
+    for _, num := range nums {
+        if cnt == 0 {
+            major = num
+            cnt = 1
+        } else {
+            if major == num {
+                cnt++
+            } else {
+                cnt--
+            }
+        }
+    }
+    return major
+}
+```
+
 ### **...**
 
 ```

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

@@ -131,6 +131,27 @@ public class Solution {
 }
 ```
 
+### **Go**
+
+```go
+func majorityElement(nums []int) int {
+    var cnt, major int
+    for _, num := range nums {
+        if cnt == 0 {
+            major = num
+            cnt = 1
+        } else {
+            if major == num {
+                cnt++
+            } else {
+                cnt--
+            }
+        }
+    }
+    return major
+}
+```
+
 ### **...**
 
 ```

solution/0200-0299/0283.Move Zeroes/README.md

@@ -97,6 +97,21 @@ var moveZeroes = function (nums) {
 };
 ```
 
+### **Go**
+
+```go
+func moveZeroes(nums []int) {
+	n := len(nums)
+	left := 0
+	for right := 0; right < n; right++ {
+		if nums[right] != 0 {
+			nums[left], nums[right] = nums[right], nums[left]
+			left++
+		}
+	}
+}
+```
+
 ### **...**
 
 ```

solution/0200-0299/0283.Move Zeroes/README_EN.md

@@ -96,6 +96,21 @@ var moveZeroes = function (nums) {
 };
 ```
 
+### **Go**
+
+```go
+func moveZeroes(nums []int) {
+	n := len(nums)
+	left := 0
+	for right := 0; right < n; right++ {
+		if nums[right] != 0 {
+			nums[left], nums[right] = nums[right], nums[left]
+			left++
+		}
+	}
+}
+```
+
 ### **...**
 
 ```

solution/0200-0299/0283.Move Zeroes/Solution.go

@@ -0,0 +1,10 @@
+func moveZeroes(nums []int) {
+	n := len(nums)
+	left := 0
+	for right := 0; right < n; right++ {
+		if nums[right] != 0 {
+			nums[left], nums[right] = nums[right], nums[left]
+			left++
+		}
+	}
+}