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Stock Span Problem

Here given code implementation process.

// C program 
// The Stock Span Problem
#include <stdio.h>
#include <stdlib.h>

// Define stack node
struct StackNode
{
	int element;
	struct StackNode *next;
};
// Define a custom stack
struct MyStack
{
	struct StackNode *top;
	int size;
};
struct MyStack *newStack()
{
	//Make a stack
	struct MyStack *stack = (struct MyStack *) malloc(sizeof(struct MyStack));
	if (stack != NULL)
	{
		//Set node values
		stack->top = NULL;
		stack->size = 0;
	}
	else
	{
		printf("\nMemory overflow when create new stack\n");
	}
}
//Create a new node of stack
struct StackNode *newNode(int element, struct StackNode *next)
{
	//Make a new node
	struct StackNode *node = (struct StackNode *) malloc(sizeof(struct StackNode));
	if (node == NULL)
	{
		printf("\nMemory overflow when create new stack Node \n");
	}
	else
	{
		node->element = element;
		node->next = next;
	}
	return node;
}
// Returns the status of empty or non empty stacks
int isEmpty(struct MyStack *stack)
{
	if (stack->size > 0 && stack->top != NULL)
	{
		return 0;
	}
	else
	{
		return 1;
	}
}
// Add node at the top of stack
void push(struct MyStack *stack, int element)
{
	// Add stack element
	stack->top = newNode(element, stack->top);
	stack->size++;
}
// return top element of stack
int peek(struct MyStack *stack)
{
	return stack->top->element;
}
// Remove top element of stack
void pop(struct MyStack *stack)
{
	if (isEmpty(stack) == 0)
	{
		struct StackNode *temp = stack->top;
		// Change top element of stack
		stack->top = temp->next;
		// remove previous top
		free(temp);
		temp = NULL;
		stack->size--;
	}
}
// Calculating the stock span
void findSpan(int rates[], int stockspan[], int days)
{
	// Create an stack
	struct MyStack *stack = newStack();
	// Set initial value
	stockspan[0] = 1;
	push(stack, 0);
	// iterating through the days
	for (int i = 1; i < days; ++i)
	{
		while (isEmpty(stack) == 0 && rates[peek(stack)] <= rates[i])
		{
			// When the top of stack element is less than equal to rates of i location 
			pop(stack);
		}
		if (isEmpty(stack) == 1)
		{
			//When stack is empty
			stockspan[i] = i + 1;
		}
		else
		{
			stockspan[i] = i - peek(stack);
		}
		// Add element into stack
		push(stack, i);
	}
}
// Display calculate elements
void display(int stockspan[], int days)
{
	for (int i = 0; i < days; ++i)
	{
		// Print elements
		printf("  %d", stockspan[i]);
	}
	printf("\n");
}
int main()
{
	int rates[] = {
		7 , 13 , 25 , 12 , 41 , 9
	};
	// Get the number of elements
	int days = sizeof(rates) / sizeof(rates[0]);
	int stockspan[days];
	findSpan(rates, stockspan, days);
	display(stockspan, days);
	return 0;
}

Output

  1  2  3  1  5  1
/*
   Java Program
   The Stock Span Problem
*/
// Define stack node
class StackNode
{
	public int element;
	public StackNode next;
	public StackNode(int element, StackNode next)
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
class MyStack
{
	public StackNode top;
	public int size;
	public MyStack()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	public void push(int element)
	{
		this.top = new StackNode(element, this.top);
		this.size++;
	}
	public boolean isEmpty()
	{
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	public void pop()
	{
		if (this.size > 0 && this.top != null)
		{
			StackNode temp = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size--;
		}
	}
	// return top element of stack
	public int peek()
	{
		return this.top.element;
	}
}
public class StockSpanProblem
{
	// Calculating the stock span
	public void findSpan(int[] rates, int[] stockspan, int days)
	{
		// Create an stack
		MyStack stack = new MyStack();
		// Set initial value
		stockspan[0] = 1;
		stack.push(0);
		// iterating through the days
		for (int i = 1; i < days; ++i)
		{
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
			{
				// When the top of stack element is less than equal to rates of i location 
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan[i] = i + 1;
			}
			else
			{
				stockspan[i] = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
		}
	}
	// Display calculate elements
	public void display(int[] stockspan, int days)
	{
		for (int i = 0; i < days; ++i)
		{
			// Print elements
			System.out.print("  " + stockspan[i]);
		}
		System.out.print("\n");
	}
	public static void main(String[] args)
	{
		StockSpanProblem task = new StockSpanProblem();
		int[] rates = {
			7 , 13 , 25 , 12 , 41 , 9
		};
		// Get the number of elements
		int days = rates.length;
		int[] stockspan = new int[days];
		task.findSpan(rates, stockspan, days);
		task.display(stockspan, days);
	}
}

Output

  1  2  3  1  5  1
// Include header file
#include <iostream>
using namespace std;

/*
   C++ Program
   The Stock Span Problem
*/

// Define stack node
class StackNode
{
	public: 
    int element;
	StackNode *next;
	StackNode(int element, StackNode *next)
	{
		this->element = element;
		this->next = next;
	}
};
// Define a custom stack
class MyStack
{
	public: 
    StackNode *top;
	int size;
	MyStack()
	{
		//Set node values
		this->top = NULL;
		this->size = 0;
	}
	// Add node at the top of stack
	void push(int element)
	{
		this->top = new StackNode(element, this->top);
		this->size++;
	}
	bool isEmpty()
	{
		if (this->size > 0 && this->top != NULL)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	void pop()
	{
		if (this->size > 0 && this->top != NULL)
		{
			StackNode *temp = this->top;
			// Change top element of stack
			this->top = temp->next;
			// remove previous top
                       delete temp;
			temp = NULL;
			this->size--;
		}
	}
	// return top element of stack
	int peek()
	{
		return this->top->element;
	}
};
class StockSpanProblem
{
	public:
		// Calculating the stock span
		void findSpan(int rates[], int stockspan[], int days)
		{
			// Create an stack
			MyStack stack = MyStack();
			// Set initial value
			stockspan[0] = 1;
			stack.push(0);
			// iterating through the days
			for (int i = 1; i < days; ++i)
			{
				while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
				{
					// When the top of stack element is less than equal to rates of i location
					stack.pop();
				}
				if (stack.isEmpty() == true)
				{
					//When stack is empty
					stockspan[i] = i + 1;
				}
				else
				{
					stockspan[i] = i - stack.peek();
				}
				// Add element into stack
				stack.push(i);
			}
		}
	// Display calculate elements
	void display(int stockspan[], int days)
	{
		for (int i = 0; i < days; ++i)
		{
			// Print elements
			cout << "  " << stockspan[i];
		}
		cout << "\n";
	}
};
int main()
{
	StockSpanProblem task = StockSpanProblem();
	int rates[] = {
		7 , 13 , 25 , 12 , 41 , 9
	};
	// Get the number of elements
	int days = sizeof(rates) / sizeof(rates[0]);
	int stockspan[days];
	task.findSpan(rates, stockspan, days);
	task.display(stockspan, days);
	return 0;
}

Output

  1  2  3  1  5  1
// Include namespace system
using System;
/*
   C# Program
   The Stock Span Problem
*/
// Define stack node
public class StackNode
{
	public int element;
	public StackNode next;
	public StackNode(int element, StackNode next)
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
public class MyStack
{
	public StackNode top;
	public int size;
	public MyStack()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	public void push(int element)
	{
		this.top = new StackNode(element, this.top);
		this.size++;
	}
	public Boolean isEmpty()
	{
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	public void pop()
	{
		if (this.size > 0 && this.top != null)
		{
			StackNode temp = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size--;
		}
	}
	// return top element of stack
	public int peek()
	{
		return this.top.element;
	}
}
public class StockSpanProblem
{
	// Calculating the stock span
	public void findSpan(int[] rates, int[] stockspan, int days)
	{
		// Create an stack
		MyStack stack = new MyStack();
		// Set initial value
		stockspan[0] = 1;
		stack.push(0);
		// iterating through the days
		for (int i = 1; i < days; ++i)
		{
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
			{
				// When the top of stack element is less than equal to rates of i location
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan[i] = i + 1;
			}
			else
			{
				stockspan[i] = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
		}
	}
	// Display calculate elements
	public void display(int[] stockspan, int days)
	{
		for (int i = 0; i < days; ++i)
		{
			// Print elements
			Console.Write("  " + stockspan[i]);
		}
		Console.Write("\n");
	}
	public static void Main(String[] args)
	{
		StockSpanProblem task = new StockSpanProblem();
		int[] rates = {
			7 , 13 , 25 , 12 , 41 , 9
		};
		// Get the number of elements
		int days = rates.Length;
		int[] stockspan = new int[days];
		task.findSpan(rates, stockspan, days);
		task.display(stockspan, days);
	}
}

Output

  1  2  3  1  5  1
<?php
/*
   Php Program
   The Stock Span Problem
*/
// Define stack node
class StackNode
{
	public $element;
	public $next;

	function __construct($element, $next)
	{
		$this->element = $element;
		$this->next = $next;
	}
}
// Define a custom stack
class MyStack
{
	public $top;
	public $size;

	function __construct()
	{
		//Set node values
		$this->top = null;
		$this->size = 0;
	}
	// Add node at the top of stack
	public	function push($element)
	{
		$this->top = new StackNode($element, $this->top);
		$this->size++;
	}
	public	function isEmpty()
	{
		if ($this->size > 0 && $this->top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	public	function pop()
	{
		if ($this->size > 0 && $this->top != null)
		{
			$temp = $this->top;
			// Change top element of stack
			$this->top = $temp->next;
			// remove previous top
			$temp = null;
			$this->size--;
		}
	}
	// return top element of stack
	public	function peek()
	{
		return $this->top->element;
	}
}
class StockSpanProblem
{
	// Calculating the stock span
	public	function findSpan( & $rates, & $stockspan, $days)
	{
		// Create an stack
		$stack = new MyStack();
		// Set initial value
		$stockspan[0] = 1;
		$stack->push(0);
		// iterating through the days
		for ($i = 1; $i < $days; ++$i)
		{
			while ($stack->isEmpty() == false && $rates[$stack->peek()] <= $rates[$i])
			{
				// When the top of stack element is less than equal to rates of i location
				$stack->pop();
			}
			if ($stack->isEmpty() == true)
			{
				//When stack is empty
				$stockspan[$i] = $i + 1;
			}
			else
			{
				$stockspan[$i] = $i - $stack->peek();
			}
			// Add element into stack
			$stack->push($i);
		}
	}
	// Display calculate elements
	public	function display( & $stockspan, $days)
	{
		for ($i = 0; $i < $days; ++$i)
		{
			// Print elements
			echo "  ". $stockspan[$i];
		}
		echo "\n";
	}
}

function main()
{
	$task = new StockSpanProblem();
	$rates = array(7, 13, 25, 12, 41, 9);
	// Get the number of elements
	$days = count($rates);
	$stockspan = array_fill(0, $days, 0);
	$task->findSpan($rates, $stockspan, $days);
	$task->display($stockspan, $days);
}
main();

Output

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/*
   Node Js Program
   The Stock Span Problem
*/
// Define stack node
class StackNode
{
	constructor(element, next)
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
class MyStack
{
	constructor()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	push(element)
	{
		this.top = new StackNode(element, this.top);
		this.size++;
	}
	isEmpty()
	{
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	pop()
	{
		if (this.size > 0 && this.top != null)
		{
			var temp = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size--;
		}
	}
	// return top element of stack
	peek()
	{
		return this.top.element;
	}
}
class StockSpanProblem
{
	// Calculating the stock span
	findSpan(rates, stockspan, days)
	{
		// Create an stack
		var stack = new MyStack();
		// Set initial value
		stockspan[0] = 1;
		stack.push(0);
		// iterating through the days
		for (var i = 1; i < days; ++i)
		{
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
			{
				// When the top of stack element is less than equal to rates of i location
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan[i] = i + 1;
			}
			else
			{
				stockspan[i] = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
		}
	}
	// Display calculate elements
	display(stockspan, days)
	{
		for (var i = 0; i < days; ++i)
		{
			// Print elements
			process.stdout.write("  " + stockspan[i]);
		}
		process.stdout.write("\n");
	}
}

function main()
{
	var task = new StockSpanProblem();
	var rates = [7, 13, 25, 12, 41, 9];
	// Get the number of elements
	var days = rates.length;
	var stockspan = Array(days).fill(0);
	task.findSpan(rates, stockspan, days);
	task.display(stockspan, days);
}
main();

Output

  1  2  3  1  5  1
#  Python 3 Program
#  The Stock Span Problem

#  Define stack node
class StackNode :
	
	def __init__(self, element, next) :
		self.element = element
		self.next = next
	

#  Define a custom stack
class MyStack :
	
	def __init__(self) :
		# Set node values
		self.top = None
		self.size = 0
	
	#  Add node at the top of stack
	def push(self, element) :
		self.top = StackNode(element, self.top)
		self.size += 1
	
	def isEmpty(self) :
		if (self.size > 0 and self.top != None) :
			return False
		else :
			return True
		
	
	#  Remove top element of stack
	def pop(self) :
		if (self.size > 0 and self.top != None) :
			temp = self.top
			#  Change top element of stack
			self.top = temp.next
			#  remove previous top
			temp = None
			self.size -= 1
		
	
	#  return top element of stack
	def peek(self) :
		return self.top.element
	

class StockSpanProblem :
	#  Calculating the stock span
	def findSpan(self, rates, stockspan, days) :
		#  Create an stack
		stack = MyStack()
		#  Set initial value
		stockspan[0] = 1
		stack.push(0)
		i = 1
		#  iterating through the days
		while (i < days) :
			while (stack.isEmpty() == False and rates[stack.peek()] <= rates[i]) :
				#  When the top of stack element is less than equal to rates of i location
				stack.pop()
			
			if (stack.isEmpty() == True) :
				# When stack is empty
				stockspan[i] = i + 1
			else :
				stockspan[i] = i - stack.peek()
			
			#  Add element into stack
			stack.push(i)
			i += 1
		
	
	#  Display calculate elements
	def display(self, stockspan, days) :
		i = 0
		while (i < days) :
			#  Print elements
			print("  ", stockspan[i], end = "")
			i += 1
		
		print(end = "\n")
	

def main() :
	task = StockSpanProblem()
	rates = [7, 13, 25, 12, 41, 9]
	#  Get the number of elements
	days = len(rates)
	stockspan = [0] * (days)
	task.findSpan(rates, stockspan, days)
	task.display(stockspan, days)

if __name__ == "__main__": main()

Output

   1   2   3   1   5   1
#  Ruby Program
#  The Stock Span Problem

#  Define stack node
class StackNode  
	# Define the accessor and reader of class StackNode  
	attr_reader :element, :next
	attr_accessor :element, :next
 
	
	def initialize(element, top) 
		self.element = element
		self.next = top
	end

end

#  Define a custom stack
class MyStack  
	# Define the accessor and reader of class MyStack  
	attr_reader :top, :size
	attr_accessor :top, :size
 
	
	def initialize() 
		# Set node values
		self.top = nil
		self.size = 0
	end

	#  Add node at the top of stack
	def push(element) 
		self.top = StackNode.new(element, self.top)
		self.size += 1
	end

	def isEmpty() 
		if (self.size > 0 && self.top != nil) 
			return false
		else 
			return true
		end

	end

	#  Remove top element of stack
	def pop() 
		if (self.size > 0 && self.top != nil) 
			temp = self.top
			#  Change top element of stack
			self.top = temp.next
			#  remove previous top
			temp = nil
			self.size -= 1
		end

	end

	#  return top element of stack
	def peek() 
		return self.top.element
	end

end

class StockSpanProblem 
	#  Calculating the stock span
	def findSpan(rates, stockspan, days) 
		#  Create an stack
		stack = MyStack.new()
		#  Set initial value
		stockspan[0] = 1
		stack.push(0)
		i = 1
		#  iterating through the days
		while (i < days) 
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i]) 
				#  When the top of stack element is less than equal to rates of i location
				stack.pop()
			end

			if (stack.isEmpty() == true) 
				# When stack is empty
				stockspan[i] = i + 1
			else 
				stockspan[i] = i - stack.peek()
			end

			#  Add element into stack
			stack.push(i)
			i += 1
		end

	end

	#  Display calculate elements
	def display(stockspan, days) 
		i = 0
		while (i < days) 
			#  Print elements
			print("  ", stockspan[i])
			i += 1
		end

		print("\n")
	end

end

def main() 
	task = StockSpanProblem.new()
	rates = [7, 13, 25, 12, 41, 9]
	#  Get the number of elements
	days = rates.length
	stockspan = Array.new(days) {0}
	task.findSpan(rates, stockspan, days)
	task.display(stockspan, days)
end

main()

Output

  1  2  3  1  5  1

/*
   Scala Program
   The Stock Span Problem
*/
// Define stack node
class StackNode(var element: Int , var next: StackNode);
// Define a custom stack
class MyStack(var top: StackNode , var size: Int)
{
	def this()
	{
		this(null, 0);
	}
	// Add node at the top of stack
	def push(element: Int): Unit = {
		this.top = new StackNode(element, this.top);
		this.size += 1;
	}
	def isEmpty(): Boolean = {
		if (this.size > 0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	def pop(): Unit = {
		if (this.size > 0 && this.top != null)
		{
			var temp: StackNode = this.top;
			// Change top element of stack
			this.top = temp.next;
			// remove previous top
			temp = null;
			this.size -= 1;
		}
	}
	// return top element of stack
	def peek(): Int = {
		return this.top.element;
	}
}
class StockSpanProblem
{
	// Calculating the stock span
	def findSpan(rates: Array[Int], stockspan: Array[Int], days: Int): Unit = {
		// Create an stack
		var stack: MyStack = new MyStack();
		// Set initial value
		stockspan(0) = 1;
		stack.push(0);
		var i: Int = 1;
		// iterating through the days
		while (i < days)
		{
			while (stack.isEmpty() == false && rates(stack.peek()) <= rates(i))
			{
				// When the top of stack element is less than equal to rates of i location
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan(i) = i + 1;
			}
			else
			{
				stockspan(i) = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
			i += 1;
		}
	}
	// Display calculate elements
	def display(stockspan: Array[Int], days: Int): Unit = {
		var i: Int = 0;
		while (i < days)
		{
			// Print elements
			print("  " + stockspan(i));
			i += 1;
		}
		print("\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: StockSpanProblem = new StockSpanProblem();
		var rates: Array[Int] = Array(7, 13, 25, 12, 41, 9);
		// Get the number of elements
		var days: Int = rates.length;
		var stockspan: Array[Int] = Array.fill[Int](days)(0);
		task.findSpan(rates, stockspan, days);
		task.display(stockspan, days);
	}
}

Output

  1  2  3  1  5  1
/*
   Swift 4 Program
   The Stock Span Problem
*/
// Define stack node
class StackNode
{
	var element: Int;
	var next: StackNode? ;
	init(_ element: Int, _ next: StackNode? )
	{
		self.element = element;
		self.next = next;
	}
}
// Define a custom stack
class MyStack
{
	var top: StackNode? ;
	var size: Int;
	init()
	{
		//Set node values
		self.top = nil;
		self.size = 0;
	}
	// Add node at the top of stack
	func push(_ element: Int)
	{
		self.top = StackNode(element, self.top);
		self.size += 1;
	}
	func isEmpty()->Bool
	{
		if (self.size > 0 && self.top != nil)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	func pop()
	{
		if (self.size > 0 && self.top != nil)
		{
			var temp: StackNode? = self.top;
			// Change top element of stack
			self.top = temp!.next;
			// remove previous top
			temp = nil;
			self.size -= 1;
		}
	}
	// return top element of stack
	func peek()->Int
	{
		return self.top!.element;
	}
}
class StockSpanProblem
{
	// Calculating the stock span
	func findSpan(_ rates: [Int], _ stockspan: inout[Int], _ days: Int)
	{
		// Create an stack
		let stack: MyStack = MyStack();
		// Set initial value
		stockspan[0] = 1;
		stack.push(0);
		var i: Int = 1;
		// iterating through the days
		while (i < days)
		{
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
			{
				// When the top of stack element is less than equal to rates of i location
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan[i] = i + 1;
			}
			else
			{
				stockspan[i] = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
			i += 1;
		}
	}
	// Display calculate elements
	func display(_ stockspan: [Int], _ days: Int)
	{
		var i: Int = 0;
		while (i < days)
		{
			// Print elements
			print("  ", stockspan[i], terminator: "");
			i += 1;
		}
		print(terminator: "\n");
	}
}
func main()
{
	let task: StockSpanProblem = StockSpanProblem();
	let rates: [Int] = [7, 13, 25, 12, 41, 9];
	// Get the number of elements
	let days: Int = rates.count;
	var stockspan: [Int] = Array(repeating: 0, count: days);
	task.findSpan(rates, &stockspan, days);
	task.display(stockspan, days);
}
main();

Output

   1   2   3   1   5   1
/*
   Kotlin Program
   The Stock Span Problem
*/
// Define stack node
class StackNode
{
	var element: Int;
	var next: StackNode ? ;
	constructor(element: Int, next: StackNode ? )
	{
		this.element = element;
		this.next = next;
	}
}
// Define a custom stack
class MyStack
{
	var top: StackNode ? ;
	var size: Int;
	constructor()
	{
		//Set node values
		this.top = null;
		this.size = 0;
	}
	// Add node at the top of stack
	fun push(element: Int): Unit
	{
		this.top = StackNode(element, this.top);
		this.size += 1;
	}
	fun isEmpty(): Boolean
	{
		if (this.size>0 && this.top != null)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	// Remove top element of stack
	fun pop(): Unit
	{
		if (this.size>0 && this.top != null)
		{
			var temp: StackNode ? = this.top;
			// Change top element of stack
			this.top = temp?.next;
			this.size -= 1;
		}
	}
	// return top element of stack
	fun peek(): Int
	{
		return this.top!!.element;
	}
}
class StockSpanProblem
{
	// Calculating the stock span
	fun findSpan(rates: Array<Int>, stockspan: Array<Int>, days: Int): Unit
	{
		// Create an stack
		var stack: MyStack = MyStack();
		// Set initial value
		stockspan[0] = 1;
		stack.push(0);
		var i: Int = 1;
		// iterating through the days
		while (i<days)
		{
			while (stack.isEmpty() == false && rates[stack.peek()] <= rates[i])
			{
				// When the top of stack element is less than equal to rates of i location
				stack.pop();
			}
			if (stack.isEmpty() == true)
			{
				//When stack is empty
				stockspan[i] = i + 1;
			}
			else
			{
				stockspan[i] = i - stack.peek();
			}
			// Add element into stack
			stack.push(i);
			i += 1;
		}
	}
	// Display calculate elements
	fun display(stockspan: Array<Int>, days: Int): Unit
	{
		var i: Int = 0;
		while (i<days)
		{
			// Print elements
			print("  " + stockspan[i]);
			i += 1;
		}
		print("\n");
	}
}
fun main(args: Array<String>): Unit
{
	var task: StockSpanProblem = StockSpanProblem();
	var rates: Array<Int> = arrayOf(7, 13, 25, 12, 41, 9);
	// Get the number of elements
	var days: Int = rates.count();
	var stockspan: Array<Int> = Array(days)
	{
		0
	};
	task.findSpan(rates, stockspan, days);
	task.display(stockspan, days);
}

Output

  1  2  3  1  5  1
Last updated on by Kalkicode




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