Find max element in array using recursion

Here given code implementation process.

// C program
// Find max element in array using recursion
#include <stdio.h>

//Find max element recursively in given collection
int max_element(int collection[], int low, int high)
{
	if (low == high)
	{
		//When only one element then returning current element
		return collection[high];
	}
	// Find mid element
	// low is first element location
	// high is last element location
	int mid = (low + high) >> 1;
	//Find max element in left side
	int a = max_element(collection, low, mid);
	//Find max element in right side
	int b = max_element(collection, mid + 1, high);
	if (a > b)
	{
		// When a is max
		return a;
	}
	else
	{
		// When b is max
		return b;
	}
}
//Display element of given collection
void display_element(int collection[], int size)
{
	for (int i = 0; i < size; ++i)
	{
		printf("  %d", collection[i]);
	}
	printf("\n");
}
int main()
{
	// Define the collection of integer elements
	int collection[] = {
		7,
		33,
		28,
		23,
		0,
		2,
		9,
		35,
		13,
		42,
		1,
		3
	};
	// Get the size of given collection
	int size = sizeof(collection) / sizeof(collection[0]);
	printf("Element : ");
	display_element(collection, size);
	int result = max_element(collection, 0, size - 1);
	printf("Max Element : %d \n", result);
	return 0;
}

Output

Element :   7  33  28  23  0  2  9  35  13  42  1  3
Max Element : 42
/*
    Java Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	public int max_element(int[] collection, int low, int high)
	{
		if (low == high)
		{
			//When only one element then returning current element
			return collection[high];
		}
		// Find mid element
		// low is first element location
		// high is last element location
		int mid = (low + high) >> 1;
		//Find max element in left side
		int a = max_element(collection, low, mid);
		//Find max element in right side
		int b = max_element(collection, mid + 1, high);
		if (a > b)
		{
			// When a is max
			return a;
		}
		else
		{
			// When b is max
			return b;
		}
	}
	//Display element of given collection
	public void display_element(int[] collection, int size)
	{
		for (int i = 0; i < size; ++i)
		{
			System.out.print(" " + collection[i]);
		}
		System.out.print("\n");
	}
	// main function to test
	public static void main(String[] args)
	{
		MyRecursion obj = new MyRecursion();
		// Define the collection of integer elements
		int[] collection = {
			7,
			33,
			28,
			23,
			0,
			2,
			9,
			35,
			13,
			42,
			1,
			3
		};
		//Get the size of given collection
		int size = collection.length;
		System.out.print("Element : ");
		obj.display_element(collection, size);
		int result = obj.max_element(collection, 0, size - 1);
		System.out.print("Max Element : " + result + " \n");
	}
}

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
//Include header file
#include <iostream>

using namespace std;
/*
    C++ Program
    Find max element in array using recursion
*/
class MyRecursion
{
	public:
		//Find max element recursively in given collection
		int max_element(int collection[], int low, int high)
		{
			if (low == high)
			{
				//When only one element then returning current element
				return collection[high];
			}
			// Find mid element
			// low is first element location
			// high is last element location
			int mid = (low + high) >> 1;
			//Find max element in left side
			int a = this->max_element(collection, low, mid);
			//Find max element in right side
			int b = this->max_element(collection, mid + 1, high);
			if (a > b)
			{
				// When a is max
				return a;
			}
			else
			{
				// When b is max
				return b;
			}
		}
	//Display element of given collection
	void display_element(int collection[], int size)
	{
		for (int i = 0; i < size; ++i)
		{
			cout << " " << collection[i];
		}
		cout << "\n";
	}
};
int main()
// main function to test
{
	MyRecursion obj = MyRecursion();
	// Define the collection of integer elements
	int collection[] = {
		7 , 33 , 28 , 23 , 0 , 2 , 9 , 35 , 13 , 42 , 1 , 3
	};
	//Get the size of given collection
	int size = sizeof(collection) / sizeof(collection[0]);
	cout << "Element : ";
	obj.display_element(collection, size);
	int result = obj.max_element(collection, 0, size - 1);
	cout << "Max Element : " << result << " \n";
	return 0;
}

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
//Include namespace system
using System;
/*
    C# Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	public int max_element(int[] collection, int low, int high)
	{
		if (low == high)
		{
			//When only one element then returning current element
			return collection[high];
		}
		// Find mid element
		// low is first element location
		// high is last element location
		int mid = (low + high) >> 1;
		//Find max element in left side
		int a = max_element(collection, low, mid);
		//Find max element in right side
		int b = max_element(collection, mid + 1, high);
		if (a > b)
		{
			// When a is max
			return a;
		}
		else
		{
			// When b is max
			return b;
		}
	}
	//Display element of given collection
	public void display_element(int[] collection, int size)
	{
		for (int i = 0; i < size; ++i)
		{
			Console.Write(" " + collection[i]);
		}
		Console.Write("\n");
	}
	// main function to test
	public static void Main(String[] args)
	{
		MyRecursion obj = new MyRecursion();
		// Define the collection of integer elements
		int[] collection = {
			7 , 33 , 28 , 23 , 0 , 2 , 9 , 35 , 13 , 42 , 1 , 3
		};
		//Get the size of given collection
		int size = collection.Length;
		Console.Write("Element : ");
		obj.display_element(collection, size);
		int result = obj.max_element(collection, 0, size - 1);
		Console.Write("Max Element : " + result + " \n");
	}
}

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
<?php
/*
    Php Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	public	function max_element( $collection, $low, $high)
	{
		if ($low == $high)
		{
			//When only one element then returning current element
			return $collection[$high];
		}
		// Find mid element
		// low is first element location
		// high is last element location
		$mid = ($low + $high) >> 1;
		//Find max element in left side
		$a = $this->max_element($collection, $low, $mid);
		//Find max element in right side
		$b = $this->max_element($collection, $mid + 1, $high);
		if ($a > $b)
		{
			// When a is max
			return $a;
		}
		else
		{
			// When b is max
			return $b;
		}
	}
	//Display element of given collection
	public	function display_element( $collection, $size)
	{
		for ($i = 0; $i < $size; ++$i)
		{
			echo " ". $collection[$i];
		}
		echo "\n";
	}
}

function main()
// main function to test
{
	$obj = new MyRecursion();
	// Define the collection of integer elements
	$collection = array(7, 33, 28, 23, 0, 2, 9, 35, 13, 42, 1, 3);
	//Get the size of given collection
	$size = count($collection);
	echo "Element : ";
	$obj->display_element($collection, $size);
	$result = $obj->max_element($collection, 0, $size - 1);
	echo "Max Element : ". $result ." \n";
}
main();

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
/*
    Node Js Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	max_element(collection, low, high)
	{
		if (low == high)
		{
			//When only one element then returning current element
			return collection[high];
		}
		// Find mid element
		// low is first element location
		// high is last element location
		var mid = (low + high) >> 1;
		//Find max element in left side
		var a = this.max_element(collection, low, mid);
		//Find max element in right side
		var b = this.max_element(collection, mid + 1, high);
		if (a > b)
		{
			// When a is max
			return a;
		}
		else
		{
			// When b is max
			return b;
		}
	}
	//Display element of given collection
	display_element(collection, size)
	{
		for (var i = 0; i < size; ++i)
		{
			process.stdout.write(" " + collection[i]);
		}
		process.stdout.write("\n");
	}
}

function main()
// main function to test
{
	var obj = new MyRecursion();
	// Define the collection of integer elements
	var collection = [7, 33, 28, 23, 0, 2, 9, 35, 13, 42, 1, 3];
	//Get the size of given collection
	var size = collection.length;
	process.stdout.write("Element : ");
	obj.display_element(collection, size);
	var result = obj.max_element(collection, 0, size - 1);
	process.stdout.write("Max Element : " + result + " \n");
}
main();

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
#  Ruby Program
#  Find max element in array using recursion

class MyRecursion

	# Find max element recursively in given collection
	def max_element(collection, low, high)
	
		if (low == high)
		
			# When only one element then returning current element
			return collection[high]
		end
		#  Find mid element
		#  low is first element location
		#  high is last element location
		mid = (low + high) >> 1
		# Find max element in left side
		a = self.max_element(collection, low, mid)
		# Find max element in right side
		b = self.max_element(collection, mid + 1, high)
		if (a > b)
		
			#  When a is max
			return a
		else
		
			#  When b is max
			return b
		end
	end
	# Display element of given collection
	def display_element(collection, size)
	
		i = 0
		while (i < size)
		
			print(" ", collection[i])
			i += 1
		end
		print("\n")
	end
end
def main()
#  main function to test

	obj = MyRecursion.new()
	#  Define the collection of integer elements
	collection = [7, 33, 28, 23, 0, 2, 9, 35, 13, 42, 1, 3]
	# Get the size of given collection
	size = collection.length
	print("Element : ")
	obj.display_element(collection, size)
	result = obj.max_element(collection, 0, size - 1)
	print("Max Element : ", result ," \n")
end
main()

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42 
/*
    Scala Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	def max_element(collection: Array[Int], low: Int, high: Int): Int = {
		if (low == high)
		{
			//When only one element then returning current element
			return collection(high);
		}
		// Find mid element
		// low is first element location
		// high is last element location
		var mid: Int = (low + high) >> 1;
		//Find max element in left side
		var a: Int = max_element(collection, low, mid);
		//Find max element in right side
		var b: Int = max_element(collection, mid + 1, high);
		if (a > b)
		{
			// When a is max
			return a;
		}
		else
		{
			// When b is max
			return b;
		}
	}
	//Display element of given collection
	def display_element(collection: Array[Int], size: Int): Unit = {
		var i: Int = 0;
		while (i < size)
		{
			print(" " + collection(i));
			i += 1;
		}
		print("\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit =
		// main function to test
		{
			var obj: MyRecursion = new MyRecursion();
			// Define the collection of integer elements
			var collection: Array[Int] = Array(7, 33, 28, 23, 0, 2, 9, 35, 13, 42, 1, 3);
			//Get the size of given collection
			var size: Int = collection.length;
			print("Element : ");
			obj.display_element(collection, size);
			var result: Int = obj.max_element(collection, 0, size - 1);
			print("Max Element : " + result + " \n");
		}
}

Output

Element :  7 33 28 23 0 2 9 35 13 42 1 3
Max Element : 42
/*
    Swift Program
    Find max element in array using recursion
*/
class MyRecursion
{
	//Find max element recursively in given collection
	func max_element(_ collection: [Int], _ low: Int, _ high: Int) -> Int
	{
		if (low == high)
		{
			//When only one element then returning current element
			return collection[high];
		}
		// Find mid element
		// low is first element location
		// high is last element location
		let mid: Int = (low + high) >> 1;
		//Find max element in left side
		let a: Int = self.max_element(collection, low, mid);
		//Find max element in right side
		let b: Int = self.max_element(collection, mid + 1, high);
		if (a > b)
		{
			// When a is max
			return a;
		}
		else
		{
			// When b is max
			return b;
		}
	}
	//Display element of given collection
	func display_element(_ collection: [Int], _ size: Int)
	{
		var i: Int = 0;
		while (i < size)
		{
			print(" ", collection[i], terminator: "");
			i += 1;
		}
		print("\n", terminator: "");
	}
}
func main()
// main function to test
{
	let obj: MyRecursion = MyRecursion();
	// Define the collection of integer elements
	let collection: [Int] = [7, 33, 28, 23, 0, 2, 9, 35, 13, 42, 1, 3];
	//Get the size of given collection
	let size: Int = collection.count;
	print("Element : ", terminator: "");
	obj.display_element(collection, size);
	let result: Int = obj.max_element(collection, 0, size - 1);
	print("Max Element : ", result ," \n", terminator: "");
}
main();

Output

Element :   7  33  28  23  0  2  9  35  13  42  1  3
Max Element :  42


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