added selection sort in c using max element descending

Author: GauravWalia19

C/README.md

@@ -28,7 +28,7 @@
     * [Using max element](Sorting/SELECTION-SORT/selection.c)
     * [Using min element](Sorting/SELECTION-SORT/selectionsort.c)
   * DESCENDING
-    * [Using max element]()
+    * [Using max element](Sorting/SELECTION-SORT/maxselection.c)
     * [Using min element]()
 
 ### EXECUTION OF C CODE

C/Sorting/SELECTION-SORT/maxselection.c

@@ -0,0 +1,40 @@
+//INSERTION SORT
+//USING MAX ELEMENT
+//DESCENDING
+#include <stdio.h>
+void selectionsort(int arr[],int n)
+{
+    for(register int i=0;i<n;i++)
+    {
+        int max=i;//max index
+        for(register int j=i;j<n;j++)
+        {
+            if(arr[max]<arr[j])
+            {
+                max=j;
+            }
+        }
+        //swap
+        int temp =arr[i];
+        arr[i] = arr[max];
+        arr[max]=temp;
+    }    
+}
+int main()
+{
+    printf("Enter the size of the array\n");
+    int n;
+    scanf("%d",&n);
+    int arr[n];
+    for(register int i=0;i<n;i++)
+    {
+        scanf("%d",&arr[i]);
+    }
+    selectionsort(arr,n);
+    printf("Sorted array:\n");
+    for(register int i=0;i<n;i++)
+    {
+        printf("%d ",arr[i]);
+    }
+    printf("\n");
+}