From 257f533444bb217c8ef6bf2294a900e18029b426 Mon Sep 17 00:00:00 2001
From: ParasSharma <parassharma3624@gmail.com>
Date: Wed, 5 Oct 2022 00:10:44 +0530
Subject: [PATCH] Heap Sort

---
 Sorting/Heap Sort/heap_sort.c | 44 +++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Sorting/Heap Sort/heap_sort.c

diff --git a/Sorting/Heap Sort/heap_sort.c b/Sorting/Heap Sort/heap_sort.c
new file mode 100644
index 0000000..c318f2f
--- /dev/null
+++ b/Sorting/Heap Sort/heap_sort.c	
@@ -0,0 +1,44 @@
+  #include <stdio.h>
+  
+  void swap(int *a, int *b) {
+    int temp = *a;
+    *a = *b;
+    *b = temp;
+  }
+  
+  void heapify(int arr[], int n, int i) {
+    int largest = i;
+    int left = 2 * i + 1;
+    int right = 2 * i + 2;  
+    if (left < n && arr[left] > arr[largest])
+      largest = left;  
+    if (right < n && arr[right] > arr[largest])
+      largest = right;  
+    if (largest != i) {
+      swap(&arr[i], &arr[largest]);
+      heapify(arr, n, largest);
+    }
+  }
+  
+  void heapSort(int arr[], int n) {
+    for (int i = n / 2 - 1; i >= 0; i--)
+      heapify(arr, n, i);  
+    for (int i = n - 1; i >= 0; i--) {
+      swap(&arr[0], &arr[i]);
+      heapify(arr, i, 0);
+    }
+  }
+  
+  void printArray(int arr[], int n) {
+    for (int i = 0; i < n; ++i)
+      printf("%d ", arr[i]);
+    printf("\n");
+  }
+  
+  int main() {
+    int arr[] = {1, 12, 9, 5, 6, 10};
+    int n = sizeof(arr) / sizeof(arr[0]);  
+    heapSort(arr, n);  
+    printf("Sorted array is \n");
+    printArray(arr, n);
+  }
\ No newline at end of file