From 1e44624a5919fbd30acb39256231d4dbaa6884e3 Mon Sep 17 00:00:00 2001
From: lmalshan96 <115359843+lmalshan96@users.noreply.github.com>
Date: Mon, 10 Oct 2022 08:58:27 +0530
Subject: [PATCH] Create Heap_sort.cpp

---
 Heap_sort.cpp | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Heap_sort.cpp

diff --git a/Heap_sort.cpp b/Heap_sort.cpp
new file mode 100644
index 0000000..164c0c6
--- /dev/null
+++ b/Heap_sort.cpp
@@ -0,0 +1,51 @@
+#include <bits/stdc++.h>
+ using namespace std;
+
+ 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);
+     }
+ }
+
+ int main()
+ {
+     int n;
+     cout << "Enter size of Array: ";
+     cin >> n;
+     int arr[n];
+     cout << "Enter " << n << " Elements: ";
+     for (int i = 0; i < n; i++)
+     {
+         cin >> arr[i];
+     }
+     cout << "Applying Heap Sort.....\n";
+     heapSort(arr, n);
+     cout << "Sorted...\n";
+     for (int i = 0; i < n; i++)
+     {
+         cout << arr[i] << " ";
+     }
+     return 0;
+ }