Create shell sort.cpp

Sorting/shell sort.cpp

@@ -0,0 +1,44 @@
+class ShellSort
+{
+    static void printArray(int arr[])
+    {
+        int n = arr.length;
+        for (int i=0; i<n; ++i)
+            System.out.print(arr[i] + " ");
+        System.out.println();
+    }
+    int sort(int arr[])
+    {
+        int n = arr.length;
+
+
+        for (int gap = n/2; gap > 0; gap /= 2)
+        {
+
+            for (int i = gap; i < n; i += 1)
+            {
+
+                int temp = arr[i];
+
+
+                int j;
+                for (j = i; j >= gap && arr[j - gap] > temp; j -= gap)
+                    arr[j] = arr[j - gap];
+                arr[j] = temp;
+            }
+        }
+        return 0;
+    }
+    public static void main(String args[])
+    {
+        int arr[] = {12, 34, 54, 2, 3};
+        System.out.println("Array before sorting");
+        printArray(arr);
+
+        ShellSort ob = new ShellSort();
+        ob.sort(arr);
+
+        System.out.println("Array after sorting");
+        printArray(arr);
+    }
+}