Count substring with equal number of 0s 1s and 2s

Here given code implementation process.

/*
   Java Program
   Count substring with equal number of 0s 1s and 2s
*/
import java.util.HashMap;
import javafx.util.Pair;
public class Substring
{
	// Count substring of equal number of zeros,ones and twos
	public void equalCounter(String text)
	{
		// Get the number of characters
		int n = text.length();
		int ans = 0;
		// Define the counter variables
		int zero = 0;
		int one = 0;
		int two = 0;
		HashMap < Pair < Integer, Integer > , Integer > record = 
          new HashMap < Pair < Integer, Integer > , Integer > ();
		// First pair
		record.put(new Pair < Integer, Integer > (0, 0), 1);
		// iterate the loop through by text length
		for (int i = 0; i < n; i++)
		{
			if (text.charAt(i) == '0')
			{
				zero++;
			}
			else if (text.charAt(i) == '1')
			{
				one++;
			}
			else if (text.charAt(i) == '2')
			{
				two++;
			}
			else
			{
				System.out.print("Invalid char : " + text.charAt(i));
				return;
			}
			// Create new pair
			Pair < Integer, Integer > p = new Pair < Integer, Integer > (zero - one, zero - two);
			if (record.containsKey(p))
			{
				// Get new result 
				ans = ans + record.get(p);
				// increase pairing pairs
				record.put(p, record.get(p) + 1);
			}
			else
			{
				// Add new pair
				record.put(p, 1);
			}
		}
      	System.out.println("  Text  : " + text);
		System.out.println(" Result : " + ans);
	}
	public static void main(String[] arg)
	{
		Substring task = new Substring();
		String text = "100102021021001102";
		/*
		    // Single character
		    100102021021001102
		       102
		    100102021021001102
		          021
		    100102021021001102
		           210
		    100102021021001102
		            102
		    100102021021001102
		             021
		    100102021021001102
		              210
		    100102021021001102
		                   102
		    // Double character
		    100102021021001102
		       102021
		    100102021021001102
		          021021
		    100102021021001102
		           210210
		    // Three character
		    100102021021001102
		       102021021
		*/
		task.equalCounter(text);
	}
}

Output

  Text  : 100102021021001102
 Result : 11
// Include header file
#include <iostream>
#include <utility> 
#include <string>
#include <map>

using namespace std;
/*
   C++ Program
   Count substring with equal number of 0s 1s and 2s
*/
class Substring
{
	public:
		// Count substring of equal number of zeros,ones and twos
		void equalCounter(string text)
		{
			// Get the number of characters
			int n = text.length();
			int ans = 0;
			// Define the counter variables
			int zero = 0;
			int one = 0;
			int two = 0;
			map < pair < int, int > , int > record ;
			// First pair
			record[make_pair(0, 0)] = 1;
			// iterate the loop through by text length
			for (int i = 0; i < n; i++)
			{
				if (text[i] == '0')
				{
					zero++;
				}
				else if (text[i] == '1')
				{
					one++;
				}
				else if (text[i] == '2')
				{
					two++;
				}
				else
				{
					cout << "Invalid char : " << text[i];
					return;
				}
				pair < int, int > p = make_pair(zero - one, zero - two);
				if (record.find(p) != record.end())
				{
					// Get new result
					ans = ans + record[p];
					// increase pairing pairs
					record[p] = record[p] + 1;
				}
				else
				{
					// Add new pair
					record[p] = 1;
				}
			}
			cout << "  Text  : " << text;
			cout << "\n Result : " << ans;
		}
};
int main()
{
	Substring task = Substring();
	string text = "100102021021001102";
	/*
	    // Single character
	    100102021021001102
	       102
	    100102021021001102
	          021
	    100102021021001102
	           210
	    100102021021001102
	            102
	    100102021021001102
	             021
	    100102021021001102
	              210
	    100102021021001102
	                   102
	    // Double character
	    100102021021001102
	       102021
	    100102021021001102
	          021021
	    100102021021001102
	           210210
	    // Three character
	    100102021021001102
	       102021021
	*/
	task.equalCounter(text);
	return 0;
}

Output

  Text  : 100102021021001102
 Result : 11
// Include namespace system
using System;
using System.Collections.Generic;
/*
   C# Program
   Count substring with equal number of 0s 1s and 2s
*/
public class Substring
{
	// Count substring of equal number of zeros,ones and twos
	public void equalCounter(String text)
	{
		// Get the number of characters
		int n = text.Length;
		int ans = 0;
		// Define the counter variables
		int zero = 0;
		int one = 0;
		int two = 0;
		Dictionary < Tuple < int, int > , int > record = 
          new Dictionary < Tuple < int, int > , int > ();
		// First pair
		record.Add(Tuple.Create(0,0), 1);
		// iterate the loop through by text length
		for (int i = 0; i < n; i++)
		{
			if (text[i] == '0')
			{
				zero++;
			}
			else if (text[i] == '1')
			{
				one++;
			}
			else if (text[i] == '2')
			{
				two++;
			}
			else
			{
				Console.Write("Invalid char : " + text[i]);
				return;
			}
			// Create new pair
			Tuple <int,int> p = Tuple.Create(zero - one, zero - two);
			if (record.ContainsKey(p))
			{
				// Get new result
				ans = ans + record[p];
				// increase pairing pairs
				record[p] =  record[p] + 1;
			}
			else
			{
				// Add new pair
				record.Add(p, 1);
			}
		}
		Console.WriteLine("  Text  : " + text);
		Console.WriteLine(" Result : " + ans);
	}
	public static void Main(String[] arg)
	{
		Substring task = new Substring();
		String text = "100102021021001102";
		/*
		    // Single character
		    100102021021001102
		       102
		    100102021021001102
		          021
		    100102021021001102
		           210
		    100102021021001102
		            102
		    100102021021001102
		             021
		    100102021021001102
		              210
		    100102021021001102
		                   102
		    // Double character
		    100102021021001102
		       102021
		    100102021021001102
		          021021
		    100102021021001102
		           210210
		    // Three character
		    100102021021001102
		       102021021
		*/
		task.equalCounter(text);
	}
}

Output

  Text  : 100102021021001102
 Result : 11
#   Python 3 Program
#   Count substring with equal number of 0s 1s and 2s

class Substring :
	#  Count substring of equal number of zeros,ones and twos
	def equalCounter(self, text) :
		#  Get the number of characters
		n = len(text)
		ans = 0
		#  Define the counter variables
		zero = 0
		one = 0
		two =  0
		record = dict()
		#  First pair
		record[(0,0)] = 1
		#  iterate the loop through by text length
		for  i in range(n)  :
			if (text[i] == '0') :
				zero += 1
			
			elif(text[i] == '1') :
				one += 1
			
			elif(text[i] == '2') :
					two += 1
			else :
				print("Invalid char : ", text[i], end = "")
				return
				
			#  Create new pair
			p = (zero - one, zero - two)
			if (p in record.keys()) :
				#  Get new result
				ans = ans + record.get(p)
				#  increase pairing pairs
				record[p] = record.get(p) + 1
			else :
				#  Add new pair
				record[p] = 1
	
		print("  Text  : ", text)
		print(" Result : ", ans)


def main() :
	task = Substring()
	text = "100102021021001102"
	# 
	#     // Single character
	#     100102021021001102
	#        102
	#     100102021021001102
	#           021
	#     100102021021001102
	#            210
	#     100102021021001102
	#             102
	#     100102021021001102
	#              021
	#     100102021021001102
	#               210
	#     100102021021001102
	#                    102
	#     // Double character
	#     100102021021001102
	#        102021
	#     100102021021001102
	#           021021
	#     100102021021001102
	#            210210
	#     // Three character
	#     100102021021001102
	#        102021021
	
	task.equalCounter(text)

if __name__ == "__main__": main()

Output

  Text  :  100102021021001102
 Result :  11


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