Merge two binary max heap arrays
Here given code implementation process.
//C Program
//Merge two binary max heap arrays
#include <stdio.h>
//Swap two element in array
void swap(int arr[],int first,int second)
{
int auxiliary=arr[first];
arr[first]=arr[second];
arr[second]=auxiliary;
}
//Check if given element is from of max heap or not
// If not a max heap then swap node value
int compare(int arr[],int left,int right,int root,int size)
{
int location = -1;
if(left < size && arr[left] > arr[root] )
{
if(right < size && arr[right] > arr[left])
{
swap(arr,right,root);
location = right;
}
else
{
swap(arr,left,root);
location = left;
}
}
else if(right < size && arr[right] > arr[root])
{
swap(arr,right,root);
location = right;
}
return location;
}
void heap(int arr[],int size,int root)
{
int left = 2*root+1;
int right = 2*root+2;
int next = compare(arr, left, right, root, size);
if(next != -1)
{
heap(arr,size,next);
}
}
void printData(int arr[],int size)
{
printf("\n");
for(int i = 0; i < size; i++)
{
printf("%3d",arr[i] );
}
}
void merge(int arr[],int size)
{
for (int i = (size/2)-1; i >= 0; i--)
{
heap(arr,size,i);
}
}
int main()
{
int heap1[] = { 10, 5, 6, 2 };
int heap2[] = { 12, 7, 9 };
int n = sizeof(heap1) / sizeof(heap1[0]);
int m = sizeof(heap2) / sizeof(heap2[0]);
//new memory for combine max heap elements
int combine[n+m];
//assign first heap array element
for (int i = 0; i < n; ++i)
{
combine[i]=heap1[i];
}
//assign second heap array element
for (int i = 0; i < m; ++i)
{
combine[n+i]=heap2[i];
}
merge(combine,n+m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
printData(combine,n+m);
return 0;
}
Output
12 10 9 2 5 7 6
/*
C++ Program
Merge two binary max heap arrays
*/
#include<iostream>
using namespace std;
class MaxHeap {
public:
void swap(int arr[], int first, int second) {
int auxiliary = arr[first];
arr[first] = arr[second];
arr[second] = auxiliary;
}
int compare(int arr[], int left, int right, int root, int size) {
int location = -1;
if (left < size && arr[left] > arr[root]) {
if (right < size && arr[right] > arr[left]) {
this->swap(arr, right, root);
location = right;
} else {
this->swap(arr, left, root);
location = left;
}
} else
if (right < size && arr[right] > arr[root]) {
this->swap(arr, right, root);
location = right;
}
return location;
}
void heap(int arr[], int size, int root) {
int left = 2 *root + 1;
int right = 2 *root + 2;
int next = this->compare(arr, left, right, root, size);
if (next != -1) {
this->heap(arr, size, next);
}
}
void printData(int arr[], int size) {
cout << "\n";
for (int i = 0; i < size; i++) {
cout << " " << arr[i];
}
}
void merge(int arr[], int size) {
for (int i = (size / 2) - 1; i >= 0; i--) {
this->heap(arr, size, i);
}
}
};
int main() {
MaxHeap obj ;
int heap1[] = {
10,
5,
6,
2
};
int heap2[] = {
12,
7,
9
};
int n = sizeof(heap1)/sizeof(heap1[0]);
int m = sizeof(heap2)/sizeof(heap2[0]);
int combine[n + m];
for (int i = 0; i < n; ++i) {
combine[i] = heap1[i];
}
for (int i = 0; i < m; ++i) {
combine[n + i] = heap2[i];
}
obj.merge(combine, n + m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
obj.printData(combine, n + m);
return 0;
}
Output
12 10 9 2 5 7 6
/*
Java program
Merge two binary max heap arrays
*/
public class MaxHeap {
//Swap two element in array
void swap(int []arr, int first, int second) {
int auxiliary = arr[first];
arr[first] = arr[second];
arr[second] = auxiliary;
}
//Check if given element is from of max heap or not
//If not a max heap then swap node value
int compare(int []arr, int left, int right, int root, int size) {
int location = -1;
if (left < size && arr[left] > arr[root]) {
if (right < size && arr[right] > arr[left]) {
swap(arr, right, root);
location = right;
} else {
swap(arr, left, root);
location = left;
}
} else if (right < size && arr[right] > arr[root]) {
swap(arr, right, root);
location = right;
}
return location;
}
void heap(int []arr, int size, int root) {
int left = 2 *root + 1;
int right = 2 *root + 2;
int next = compare(arr, left, right, root, size);
if (next != -1) {
heap(arr, size, next);
}
}
void printData(int []arr, int size) {
System.out.print("\n");
for (int i = 0; i < size; i++) {
System.out.print(" "+arr[i]);
}
}
void merge(int []arr, int size) {
for (int i = (size / 2) - 1; i >= 0; i--) {
heap(arr, size, i);
}
}
public static void main(String[] args) {
MaxHeap obj = new MaxHeap();
int []heap1 = { 10, 5, 6, 2 };
int []heap2 = { 12, 7, 9 };
int n = heap1.length;
int m = heap2.length;
//New memory for combine max heap elements
int []combine=new int[n+m];
//Assign first heap array element
for (int i = 0; i < n; ++i)
{
combine[i] = heap1[i];
}
//Assign second heap array element
for (int i = 0; i < m; ++i)
{
combine[n+i]=heap2[i];
}
obj.merge(combine,n+m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
obj.printData(combine,n+m);
}
}
Output
12 10 9 2 5 7 6
/*
C# program
Merge two binary max heap arrays
*/
using System;
public class MaxHeap {
//Swap two element in array
void swap(int []arr, int first, int second) {
int auxiliary = arr[first];
arr[first] = arr[second];
arr[second] = auxiliary;
}
//Check if given element is from of max heap or not
//If not a max heap then swap node value
int compare(int []arr, int left, int right, int root, int size) {
int location = -1;
if (left < size && arr[left] > arr[root]) {
if (right < size && arr[right] > arr[left]) {
swap(arr, right, root);
location = right;
} else {
swap(arr, left, root);
location = left;
}
} else if (right < size && arr[right] > arr[root]) {
swap(arr, right, root);
location = right;
}
return location;
}
void heap(int []arr, int size, int root) {
int left = 2 *root + 1;
int right = 2 *root + 2;
int next = compare(arr, left, right, root, size);
if (next != -1) {
heap(arr, size, next);
}
}
void printData(int []arr, int size) {
Console.Write("\n");
for (int i = 0; i < size; i++) {
Console.Write(" "+arr[i]);
}
}
void merge(int []arr, int size) {
for (int i = (size / 2) - 1; i >= 0; i--) {
heap(arr, size, i);
}
}
public static void Main(String[] args) {
MaxHeap obj = new MaxHeap();
int []heap1 = { 10, 5, 6, 2 };
int []heap2 = { 12, 7, 9 };
int n = heap1.Length;
int m = heap2.Length;
//New memory for combine max heap elements
int []combine=new int[n+m];
//Assign first heap array element
for (int i = 0; i < n; ++i)
{
combine[i] = heap1[i];
}
//Assign second heap array element
for (int i = 0; i < m; ++i)
{
combine[n+i]=heap2[i];
}
obj.merge(combine,n+m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
obj.printData(combine,n+m);
}
}
Output
12 10 9 2 5 7 6
# Python 3 Program
# Merge two binary max heap arrays
class MaxHeap :
def swap(self, arr, first, second) :
auxiliary = arr[first]
arr[first] = arr[second]
arr[second] = auxiliary
def compare(self, arr, left, right, root, size) :
location = -1
if (left < size and arr[left] > arr[root]) :
if (right < size and arr[right] > arr[left]) :
self.swap(arr, right, root)
location = right
else :
self.swap(arr, left, root)
location = left
elif (right < size and arr[right] > arr[root]) :
self.swap(arr, right, root)
location = right
return location
def heap(self, arr, size, root) :
left = 2 * root + 1
right = 2 * root + 2
next = self.compare(arr, left, right, root, size)
if (next != -1) :
self.heap(arr, size, next)
def printData(self, arr, size) :
print(end="\n")
i = 0
while (i < size) :
print(" ", arr[i],end="")
i += 1
def merge(self, arr, size) :
i = int(size / 2) - 1
while (i >= 0) :
self.heap(arr, size, i)
i -= 1
def main() :
obj = MaxHeap()
heap1 = [10, 5, 6, 2]
heap2 = [12, 7, 9]
n = len(heap1)
m = len(heap2)
combine = [0]*(m+n)
i = 0
while (i < n) :
combine[i] = heap1[i]
i += 1
i = 0
while (i < m) :
combine[n + i] = heap2[i]
i += 1
obj.merge(combine, n + m)
#
# After marge
# 12
# / \
# 10 9
# / \ / \
# 2 5 7 6
#
obj.printData(combine, n + m)
if __name__ == "__main__":
main()
Output
12 10 9 2 5 7 6
# Ruby Program
# Merge two binary max heap arrays
class MaxHeap
def swap(arr, first, second)
auxiliary = arr[first]
arr[first] = arr[second]
arr[second] = auxiliary
end
def compare(arr, left, right, root, size)
location = -1
if (left < size and arr[left] > arr[root])
if (right < size and arr[right] > arr[left])
self.swap(arr, right, root)
location = right
else
self.swap(arr, left, root)
location = left
end
elsif (right < size and arr[right] > arr[root])
self.swap(arr, right, root)
location = right
end
return location
end
def heap(arr, size, root)
left = 2 * root + 1
right = 2 * root + 2
next_node = self.compare(arr, left, right, root, size)
if (next_node != -1)
self.heap(arr, size, next_node)
end
end
def printData(arr, size)
print("\n")
i = 0
while (i < size)
print(" ", arr[i])
i += 1
end
end
def merge(arr, size)
i = (size / 2) - 1
while (i >= 0)
self.heap(arr, size, i)
i -= 1
end
end
end
def main()
obj = MaxHeap.new()
heap1 = [10, 5, 6, 2]
heap2 = [12, 7, 9]
n = heap1.length
m = heap2.length
combine = Array.new(n+m,0)
i = 0
while (i < n)
combine[i] = heap1[i]
i += 1
end
i = 0
while (i < m)
combine[n + i] = heap2[i]
i += 1
end
obj.merge(combine, n + m)
#
# After marge
# 12
# / \
# 10 9
# / \ / \
# 2 5 7 6
#
obj.printData(combine, n + m)
end
main()
Output
12 10 9 2 5 7 6
<?php
/*
Php Program
Merge two binary max heap arrays
*/
class MaxHeap {
function swap(&$arr, $first, $second) {
$auxiliary = $arr[$first];
$arr[$first] = $arr[$second];
$arr[$second] = $auxiliary;
}
function compare(&$arr, $left, $right, $root, $size) {
$location = -1;
if ($left < $size && $arr[$left] > $arr[$root]) {
if ($right < $size && $arr[$right] > $arr[$left]) {
$this->swap($arr, $right, $root);
$location = $right;
} else {
$this->swap($arr, $left, $root);
$location = $left;
}
} else
if ($right < $size && $arr[$right] > $arr[$root]) {
$this->swap($arr, $right, $root);
$location = $right;
}
return $location;
}
function heap(&$arr, $size, $root) {
$left = 2 *$root + 1;
$right = 2 *$root + 2;
$next = $this->compare($arr, $left, $right, $root, $size);
if ($next != -1) {
$this->heap($arr, $size, $next);
}
}
function printData($arr, $size) {
echo("\n");
for ($i = 0; $i < $size; $i++) {
echo(" ". $arr[$i]);
}
}
function merge(&$arr, $size) {
for ($i = intval($size / 2) - 1; $i >= 0; $i--) {
$this->heap($arr, $size, $i);
}
}
}
function main() {
$obj = new MaxHeap();
$heap1 = array(10, 5, 6, 2);
$heap2 = array(12, 7, 9);
$n = count($heap1) ;
$m = count($heap2) ;
$combine = array_fill(0, $n+$m, 0);
for ($i = 0; $i < $n; ++$i) {
$combine[$i] = $heap1[$i];
}
for ($i = 0; $i < $m; ++$i) {
$combine[$n + $i] = $heap2[$i];
}
$obj->merge($combine, $n + $m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
$obj->printData($combine, $n + $m);
}
main();
Output
12 10 9 2 5 7 6
/*
Node Js Program
Merge two binary max heap arrays
*/
class MaxHeap {
swap(arr, first, second) {
var auxiliary = arr[first];
arr[first] = arr[second];
arr[second] = auxiliary;
}
compare(arr, left, right, root, size) {
var location = -1;
if (left < size && arr[left] > arr[root]) {
if (right < size && arr[right] > arr[left]) {
this.swap(arr, right, root);
location = right;
} else {
this.swap(arr, left, root);
location = left;
}
} else
if (right < size && arr[right] > arr[root]) {
this.swap(arr, right, root);
location = right;
}
return location;
}
heap(arr, size, root) {
var left = 2 *root + 1;
var right = 2 *root + 2;
var next = this.compare(arr, left, right, root, size);
if (next != -1) {
this.heap(arr, size, next);
}
}
printData(arr, size) {
process.stdout.write("\n");
for (var i = 0; i < size; i++) {
process.stdout.write(" " + arr[i]);
}
}
merge(arr, size) {
for (var i = parseInt(size / 2) - 1; i >= 0; i--) {
this.heap(arr, size, i);
}
}
}
function main() {
var obj = new MaxHeap();
var heap1 = [10, 5, 6, 2];
var heap2 = [12, 7, 9];
var n = heap1.length;
var m = heap2.length;
var combine = Array(n + m).fill(0);
for (var i = 0; i < n; ++i) {
combine[i] = heap1[i];
}
for (var i = 0; i < m; ++i) {
combine[n + i] = heap2[i];
}
obj.merge(combine, n + m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
obj.printData(combine, n + m);
}
main();
Output
12 10 9 2 5 7 6
/*
Swift 4 Program
Merge two binary max heap arrays
*/
class MaxHeap {
func swap(_ arr: inout [Int] , _ first : Int, _ second: Int) {
let auxiliary: Int = arr[first];
arr[first] = arr[second];
arr[second] = auxiliary;
}
func compare(_ arr: inout [Int] , _ left : Int, _ right: Int, _ root: Int, _ size: Int) -> Int{
var location: Int = -1;
if (left < size && arr[left] > arr[root]) {
if (right < size && arr[right] > arr[left]) {
self.swap(&arr, right, root);
location = right;
} else {
self.swap(&arr, left, root);
location = left;
}
} else
if (right < size && arr[right] > arr[root]) {
self.swap(&arr, right, root);
location = right;
}
return location;
}
func heap(_ arr: inout [Int] , _ size : Int, _ root: Int) {
let left: Int = 2 * root + 1;
let right: Int = 2 * root + 2;
let next: Int = self.compare(&arr, left, right, root, size);
if (next != -1) {
self.heap(&arr, size, next);
}
}
func printData(_ arr: [Int] , _ size : Int) {
print(terminator:"\n");
var i: Int = 0;
while (i < size) {
print(" ", arr[i],terminator:"");
i += 1;
}
}
func merge(_ arr: inout [Int] , _ size : Int) {
var i: Int = (size / 2) - 1;
while (i >= 0) {
self.heap(&arr, size, i);
i -= 1;
}
}
}
func main() {
let obj: MaxHeap = MaxHeap();
let heap1: [Int] = [10, 5, 6, 2];
let heap2: [Int] = [12, 7, 9];
let n: Int = heap1.count;
let m: Int = heap2.count;
var combine: [Int] = Array(repeating:0,count:n+m);
var i: Int = 0;
while (i < n) {
combine[i] = heap1[i];
i += 1;
}
i = 0;
while (i < m) {
combine[n + i] = heap2[i];
i += 1;
}
obj.merge(&combine, n + m);
/*
After marge
12
/ \
10 9
/ \ / \
2 5 7 6
*/
obj.printData(combine, n + m);
}
main();
Output
12 10 9 2 5 7 6
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