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Kth non repeating character in a string

Here given code implementation process.

/*
  Java program for
  Kth non repeating character in a string
*/
public class Alphabets
{
	public void kthNonRepeatChar(String text, int k)
	{
		int n = text.length();
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		System.out.println(" Given Text : " + text);
		// Use to collect frequency of character
		int[] record = new int[256];
		int count = 0;
		// Set initial frequency of character
		for (int i = 0; i < 256; ++i)
		{
			record[i] = 0;
		}
		// Count character frequency
		for (int i = 0; i < n; ++i)
		{
			record[text.charAt(i)] += 1;
		}
		// Find kth non repeating character
		// From left to right
		for (int i = 0; i < n; ++i)
		{
			if (record[text.charAt(i)] == 1)
			{
				count++;
				if (count == k)
				{
					System.out.println(" " + k + 
                                       "'th non character is : " +
                                       text.charAt(i));
					return;
				}
			}
		}
		// When kth non repeating character not exist in given text
		System.out.print(" " + k + 
                         "-th non repeating character is not exist\n");
	}
	public static void main(String[] args)
	{
		Alphabets task = new Alphabets();
		/*
		    Case A
		    ------
		    G o o g l e P l a y G a m e 
		          -     -     -     -      
		          ①    ②    ③     ④
		*/
		task.kthNonRepeatChar("GooglePlayGame", 3);
		/*
		    Case B
		    ------
		    1  2  3  4   7   3   9   0   3  2
		    -        -   -       -   -  
		    ①       ②  ③       ④  ⑤
		*/
		task.kthNonRepeatChar("1234739032", 5);
	}
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
// Include header file
#include <iostream>
#include <string>

using namespace std;
/*
  C++ program for
  Kth non repeating character in a string
*/
class Alphabets
{
	public: void kthNonRepeatChar(string text, int k)
	{
		int n = text.length();
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		cout << " Given Text : " << text << endl;
		// Use to collect frequency of character
		int record[256];
		int count = 0;
		// Set initial frequency of character
		for (int i = 0; i < 256; ++i)
		{
			record[i] = 0;
		}
		// Count character frequency
		for (int i = 0; i < n; ++i)
		{
			record[text[i]] += 1;
		}
		// Find kth non repeating character
		// From left to right
		for (int i = 0; i < n; ++i)
		{
			if (record[text[i]] == 1)
			{
				count++;
				if (count == k)
				{
					cout << " " << k 
                  		 << "\'th non character is : "
                         << text[i] 
                         << endl;
					return;
				}
			}
		}
		// When kth non repeating character not exist in given text
		cout << " " 
             << k 
             << "-th non repeating character is not exist\n";
	}
};
int main()
{
	Alphabets *task = new Alphabets();
	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	task->kthNonRepeatChar("GooglePlayGame", 3);
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②  ③       ④  ⑤
	*/
	task->kthNonRepeatChar("1234739032", 5);
	return 0;
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
// Include namespace system
using System;
/*
  Csharp program for
  Kth non repeating character in a string
*/
public class Alphabets
{
	public void kthNonRepeatChar(String text, int k)
	{
		int n = text.Length;
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		Console.WriteLine(" Given Text : " + text);
		// Use to collect frequency of character
		int[] record = new int[256];
		int count = 0;
		// Set initial frequency of character
		for (int i = 0; i < 256; ++i)
		{
			record[i] = 0;
		}
		// Count character frequency
		for (int i = 0; i < n; ++i)
		{
			record[text[i]] += 1;
		}
		// Find kth non repeating character
		// From left to right
		for (int i = 0; i < n; ++i)
		{
			if (record[text[i]] == 1)
			{
				count++;
				if (count == k)
				{
					Console.WriteLine(" " + k + 
                                      "\'th non character is : " +
                                      text[i]);
					return;
				}
			}
		}
		// When kth non repeating character not exist in given text
		Console.Write(" " + k + 
                      "-th non repeating character is not exist\n");
	}
	public static void Main(String[] args)
	{
		Alphabets task = new Alphabets();
		/*
		    Case A
		    ------
		    G o o g l e P l a y G a m e 
		          -     -     -     -      
		          ①    ②    ③     ④
		*/
		task.kthNonRepeatChar("GooglePlayGame", 3);
		/*
		    Case B
		    ------
		    1  2  3  4   7   3   9   0   3  2
		    -        -   -       -   -  
		    ①       ②   ③      ④   ⑤
		*/
		task.kthNonRepeatChar("1234739032", 5);
	}
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
package main
import "fmt"
/*
  Go program for
  Kth non repeating character in a string
*/

func kthNonRepeatChar(text string, k int) {
	var n int = len(text)
	if n == 0 || k <= 0 || k > n {
		return
	}
	fmt.Println(" Given Text : ", text)
	// Use to collect frequency of character
	var record = make([] int,256)
	var count int = 0
	// Set initial frequency of character
	for i := 0 ; i < 256 ; i++ {
		record[i] = 0
	}
	// Count character frequency
	for i := 0 ; i < n ; i++ {
		record[text[i]] += 1
	}
	// Find kth non repeating character
	// From left to right
	for i := 0 ; i < n ; i++ {
		if record[text[i]] == 1 {
			count++
			if count == k {
				fmt.Printf(" %d'th non character is : %c\n",k, text[i])
				return
			}
		}
	}
	// When kth non repeating character not exist in given text
	fmt.Print(" ", k, "-th non repeating character is not exist\n")
}
func main() {

	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	kthNonRepeatChar("GooglePlayGame", 3)
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②   ③      ④   ⑤
	*/
	kthNonRepeatChar("1234739032", 5)
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
<?php
/*
  Php program for
  Kth non repeating character in a string
*/
class Alphabets
{
	public	function kthNonRepeatChar($text, $k)
	{
		$n = strlen($text);
		if ($n == 0 || $k <= 0 || $k > $n)
		{
			return;
		}
		echo(" Given Text : ".$text."\n");
		// Use to collect frequency of character
		// Set initial 0 frequency to possible character 0..256
		$record = array_fill(0, 256, 0);
		$count = 0;
		// Count character frequency
		for ($i = 0; $i < $n; ++$i)
		{
			$record[ord($text[$i])] += 1;
		}
		// Find kth non repeating character
		// From left to right
		for ($i = 0; $i < $n; ++$i)
		{
			if ($record[ord($text[$i])] == 1)
			{
				$count++;
				if ($count == $k)
				{
					echo(" ".$k.
						"'th non character is : ".$text[$i].
						"\n");
					return;
				}
			}
		}
		// When kth non repeating character not exist in given text
		echo(" ".$k."-th non repeating character is not exist\n");
	}
}

function main()
{
	$task = new Alphabets();
	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	$task->kthNonRepeatChar("GooglePlayGame", 3);
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②  ③       ④  ⑤
	*/
	$task->kthNonRepeatChar("1234739032", 5);
}
main();

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
/*
  Node JS program for
  Kth non repeating character in a string
*/
class Alphabets
{
	kthNonRepeatChar(text, k)
	{
		var n = text.length;
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		console.log(" Given Text : " + text);
		// Use to collect frequency of character
		// Set initial 0 frequency to possible character 0..256
		var record = Array(256).fill(0);
		var count = 0;
		// Count character frequency
		for (var i = 0; i < n; ++i)
		{
			record[text.charCodeAt(i)] += 1;
		}
		// Find kth non repeating character
		// From left to right
		for (var i = 0; i < n; ++i)
		{
			if (record[text.charCodeAt(i)] == 1)
			{
				count++;
				if (count == k)
				{
					console.log(" " + k + 
                                "'th non character is : " + text.charAt(i));
					return;
				}
			}
		}
		// When kth non repeating character not exist in given text
		process.stdout.write(" " + k + 
                             "-th non repeating character is not exist\n");
	}
}

function main()
{
	var task = new Alphabets();
	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	task.kthNonRepeatChar("GooglePlayGame", 3);
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②  ③       ④  ⑤
	*/
	task.kthNonRepeatChar("1234739032", 5);
}
main();

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
#  Python 3 program for
#  Kth non repeating character in a string
class Alphabets :
	def kthNonRepeatChar(self, text, k) :
		n = len(text)
		if (n == 0 or k <= 0 or k > n) :
			return
		
		print(" Given Text : ", text)
		#  Use to collect frequency of character
		#  Set initial 0 frequency to possible character 0..256
		record = [0] * (256)
		count = 0
		i = 0
		#  Count character frequency
		while (i < n) :
			record[ord(text[i])] += 1
			i += 1
		
		i = 0
		#  Find kth non repeating character
		#  From left to right
		while (i < n) :
			if (record[ord(text[i])] == 1) :
				count += 1
				if (count == k) :
					print(" ", k ,"'th non character is : ", text[i],sep="")
					return
				
			
			i += 1
		
		#  When kth non repeating character not exist in given text
		print(" ", k ,"-th non repeating character is not exist")
	

def main() :
	task = Alphabets()
	#    Case A
	#    ------
	#    G o o g l e P l a y G a m e 
	#          -     -     -     -      
	#          ①    ②    ③     ④
	task.kthNonRepeatChar("GooglePlayGame", 3)
	#    Case B
	#    ------
	#    1  2  3  4   7   3   9   0   3  2
	#    -        -   -       -   -  
	#    ①       ②  ③       ④  ⑤
	task.kthNonRepeatChar("1234739032", 5)

if __name__ == "__main__": main()

Output

 Given Text :  GooglePlayGame
 3'th non character is : y
 Given Text :  1234739032
 5'th non character is : 0
#  Ruby program for
#  Kth non repeating character in a string
class Alphabets 
	def kthNonRepeatChar(text, k) 
		n = text.length
		if (n == 0 || k <= 0 || k > n) 
			return
		end

		print(" Given Text : ", text, "\n")
		#  Use to collect frequency of character
		#  Set initial 0 frequency to possible character 0..256
		record = Array.new(256) {0}
		count = 0
		i = 0
		#  Count character frequency
		while (i < n) 
			record[text[i].ord] += 1
			i += 1
		end

		i = 0
		#  Find kth non repeating character
		#  From left to right
		while (i < n) 
			if (record[text[i].ord] == 1) 
				count += 1
				if (count == k) 
					print(" ", k ,"'th non character is : ", text[i], "\n")
					return
				end

			end

			i += 1
		end

		#  When kth non repeating character not exist in given text
		print(" ", k ,"-th non repeating character is not exist\n")
	end

end

def main() 
	task = Alphabets.new()
	#    Case A
	#    ------
	#    G o o g l e P l a y G a m e 
	#          -     -     -     -      
	#          ①    ②     ③    ④
	task.kthNonRepeatChar("GooglePlayGame", 3)
	#    Case B
	#    ------
	#    1  2  3  4   7   3   9   0   3  2
	#    -        -   -       -   -  
	#    ①       ②   ③      ④   ⑤
	task.kthNonRepeatChar("1234739032", 5)
end

main()

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0

import scala.collection.mutable._;
/*
  Scala program for
  Kth non repeating character in a string
*/
class Alphabets()
{
	def kthNonRepeatChar(text: String, k: Int): Unit = {
		var n: Int = text.length();
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		println(" Given Text : " + text);
		// Use to collect frequency of character
		// Set initial 0 frequency to possible character 0..256
		var record: Array[Int] = Array.fill[Int](256)(0);
		var count: Int = 0;
		var i: Int = 0;
		// Count character frequency
		while (i < n)
		{
			record(text.charAt(i)) += 1;
			i += 1;
		}
		i = 0;
		// Find kth non repeating character
		// From left to right
		while (i < n)
		{
			if (record(text.charAt(i)) == 1)
			{
				count += 1;
				if (count == k)
				{
					println(" " + k + "\'th non character is : " + 
                            text.charAt(i));
					return;
				}
			}
			i += 1;
		}
		// When kth non repeating character not exist in given text
		print(" " + k + "-th non repeating character is not exist\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: Alphabets = new Alphabets();
		/*
		    Case A
		    ------
		    G o o g l e P l a y G a m e 
		          -     -     -     -      
		          ①    ②    ③     ④
		*/
		task.kthNonRepeatChar("GooglePlayGame", 3);
		/*
		    Case B
		    ------
		    1  2  3  4   7   3   9   0   3  2
		    -        -   -       -   -  
		    ①       ②  ③       ④  ⑤
		*/
		task.kthNonRepeatChar("1234739032", 5);
	}
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
import Foundation;
/*
  Swift 4 program for
  Kth non repeating character in a string
*/
class Alphabets
{
	func kthNonRepeatChar(_ data: String, _ k: Int)
	{
		let n: Int = data.count;
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		print(" Given Text : ", data);
		// Use to collect frequency of character
		// Set initial 0 frequency to possible character 0..256
		var record: [Int] = Array(repeating: 0, count: 256);
		var count: Int = 0;
		var i: Int = 0;
      	var j = 0;
      	let text = Array(data);
		// Count character frequency
		while (i < n)
		{
          	j = Int(UnicodeScalar(String(text[i]))!.value);
			record[j] += 1;
			i += 1;
		}
		i = 0;
		// Find kth non repeating character
		// From left to right
		while (i < n)
		{
          	j = Int(UnicodeScalar(String(text[i]))!.value);
			if (record[j] == 1)
			{
				count += 1;
				if (count == k)
				{
					print(" ", k ,"\'th non character is : ", text[i]);
					return;
				}
			}
			i += 1;
		}
		// When kth non repeating character not exist in given text
		print(" ", k ,"-th non repeating character is not exist");
	}
}
func main()
{
	let task: Alphabets = Alphabets();
	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	task.kthNonRepeatChar("GooglePlayGame", 3);
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②  ③       ④  ⑤
	*/
	task.kthNonRepeatChar("1234739032", 5);
}
main();

Output

 Given Text :  GooglePlayGame
  3 'th non character is :  y
 Given Text :  1234739032
  5 'th non character is :  0
/*
  Kotlin program for
  Kth non repeating character in a string
*/
class Alphabets
{
	fun kthNonRepeatChar(text: String, k: Int): Unit
	{
		val n: Int = text.length;
		if (n == 0 || k <= 0 || k > n)
		{
			return;
		}
		println(" Given Text : " + text);
		// Use to collect frequency of character
		// Set initial 0 frequency to possible character 0..256
		val record: Array < Int > = Array(256)
		{
			0
		};
		var count: Int = 0;
		var i: Int = 0;
		// Count character frequency
		while (i < n)
		{
			record[text.get(i).toInt()] += 1;
			i += 1;
		}
		i = 0;
		// Find kth non repeating character
		// From left to right
		while (i < n)
		{
			if (record[text.get(i).toInt()] == 1)
			{
				count += 1;
				if (count == k)
				{
					println(" " + k + "\'th non character is : " + text.get(i));
					return;
				}
			}
			i += 1;
		}
		// When kth non repeating character not exist in given text
		print(" " + k + "-th non repeating character is not exist\n");
	}
}
fun main(args: Array < String > ): Unit
{
	val task: Alphabets = Alphabets();
	/*
	    Case A
	    ------
	    G o o g l e P l a y G a m e 
	          -     -     -     -      
	          ①    ②    ③     ④
	*/
	task.kthNonRepeatChar("GooglePlayGame", 3);
	/*
	    Case B
	    ------
	    1  2  3  4   7   3   9   0   3  2
	    -        -   -       -   -  
	    ①       ②  ③       ④  ⑤
	*/
	task.kthNonRepeatChar("1234739032", 5);
}

Output

 Given Text : GooglePlayGame
 3'th non character is : y
 Given Text : 1234739032
 5'th non character is : 0
Last updated on by Kalkicode




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