Day4

2022-10-06 00:46:00 +03:00
parent 062e03bdbf
commit cb2f99c3a8
21 changed files with 434 additions and 4 deletions
--- a/Array/Solution.cs
+++ b/Array/Solution.cs
@@ -0,0 +1,49 @@
+namespace _977._Squares_of_a_Sorted_Array;
+
+public class Solution
+{
+    public int[] SortedSquares(int[] nums)
+    {
+        int[] res = new int[nums.Length];
+        int firstNonNegative = -1;
+        for(int i = 0; i < nums.Length; i++)
+        {
+            if (nums[i] >= 0)
+            {
+                firstNonNegative = i;
+                break;
+            }
+        }
+
+        int resIndex = 0;
+        int positiveIndex = firstNonNegative;
+        int negativeIndex = firstNonNegative!=-1 ? positiveIndex - 1 : nums.Length-1;
+        while(resIndex < nums.Length)
+        {
+            if(negativeIndex>=0 && positiveIndex < nums.Length && positiveIndex>=0)
+            {
+                if (nums[negativeIndex]*-1 < nums[positiveIndex])
+                {
+                    res[resIndex++] = nums[negativeIndex] * nums[negativeIndex];
+                    negativeIndex--;
+                }
+                else
+                {
+                    res[resIndex++] = nums[positiveIndex] * nums[positiveIndex];
+                    positiveIndex++;
+                }
+            }
+            else if(negativeIndex >= 0)
+            {
+                res[resIndex++] = nums[negativeIndex]* nums[negativeIndex];
+                negativeIndex--;
+            }
+            else if(positiveIndex >= 0)
+            {
+                res[resIndex++] = nums[positiveIndex] * nums[positiveIndex];
+                positiveIndex++;
+            }
+        }
+        return res;
+    }
+}