https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/

Author: harshitgindra

LeetCodeSolutions/ArrayAndString/MergeSortedArray.cs

@@ -1,4 +1,3 @@
-using NUnit.Framework;
 
 namespace LeetCodeSolutions.ArrayAndString;
 

LeetCodeSolutions/ArrayAndString/Remove Duplicates from Sorted Array II.cs

@@ -0,0 +1,43 @@
+
+
+namespace LeetCodeSolutions.ArrayAndString
+{
+    class Remove_Duplicates_from_Sorted_Array_II
+    {
+        public int RemoveDuplicates(int[] nums)
+        {
+            if (nums == null || nums.Length <= 2) return nums?.Length ?? 0;
+
+            int k = 2;
+            for (int i = 2; i < nums.Length; i++)
+            {
+                if (nums[i] != nums[k - 2])
+                {
+                    nums[k++] = nums[i];
+                }
+            }
+            return k;
+        }
+
+        [Test(Description = "https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/")]
+        [Category("Medium")]
+        [Category("LeetCode")]
+        [Category("Remove Duplicates from Sorted Array II")]
+        [Category("Array/String")]
+        [Category("TopInterview")]
+        [TestCaseSource(nameof(Input))]
+        public void Test1((int Output, int[] Input) item)
+        {
+            var response = RemoveDuplicates(item.Input);
+            Assert.That(response, Is.EqualTo(item.Output));
+        }
+
+        public static IEnumerable<(int Output, int[] Input)> Input =>
+            new List<(int Output, int[] Input)>()
+            {
+                (5, [1,1,1, 1,2,2,3]),
+                (7, [0,0,1,1,1,1,2,3,3]),
+                (5, [1,1,1,2,2,3]),
+            };
+    }
+}

README.md

@@ -47,7 +47,7 @@ The Top Interview 150 collection on Leetcode is a curated set of 150 interview q
 | 1                                            |  Merge Sorted Array                                     | Easy       |    ✅    |
 | 2                                            |  Remove Element                                         | Easy       |    ✅    |
 | 3                                            |  Remove Duplicates from Sorted Array                    | Easy       |    ✅    |
-| 4                                            |  Remove Duplicates from Sorted Array II                 | Medium     |        |
+| 4                                            |  Remove Duplicates from Sorted Array II                 | Medium     |    ✅    |
 | 5                                            |  Majority Element                                       | Easy       |    ✅    |
 | 6                                            |  Rotate Array                                           | Medium     |        |
 | 7                                            |  Best Time to Buy and Sell Stock                        | Easy       |        |