Create 0088-merge-sorted-array.cs

Author: dmitry-ivashenko

csharp/0088-merge-sorted-array.cs

@@ -0,0 +1,25 @@
+public class Solution
+{
+    public void Merge(int[] nums1, int m, int[] nums2, int n)
+    {
+        var index1 = m - 1;
+        var index2 = n - 1;
+        var targetIndex = m + n - 1;
+
+        for (; targetIndex >= 0; targetIndex--)
+        {
+            var useNums1 = (index2 < 0) || (index1 >= 0 && nums1[index1] >= nums2[index2]);
+
+            if (useNums1)
+            {
+                nums1[targetIndex] = nums1[index1];
+                index1 -= 1;
+            }
+            else
+            {
+                nums1[targetIndex] = nums2[index2];
+                index2 -= 1;
+            }
+        }
+    }
+}