# Count the number of array elements whose digit sum are equal to K

Here given code implementation process.

``````// C Program for
// Count the number of array elements whose digit sum are equal to K
#include <stdio.h>

int digitSum(int number)
{
int n = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
int result = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
void countKDigitSum(int arr[], int n, int k)
{
int count = 0;
for (int i = 0; i < n; ++i)
{
if (digitSum(arr[i]) == k)
{
// Increase counter
count++;
}
}
printf("\n %d", count);
}
int main()
{
int arr[] = {
17 , 123 , 16 , 60 , 11 , 23 , 42
};
// Get the number of elements
int n = sizeof(arr) / sizeof(arr[0]);
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
countKDigitSum(arr, n, 6);
return 0;
}``````

#### Output

`` 3``
``````/*
Java program for
Count the number of array elements whose digit sum are equal to K
*/
public class Counting
{
public int digitSum(int number)
{
int n = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
int result = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
public void countKDigitSum(int[] arr, int n, int k)
{
int count = 0;
for (int i = 0; i < n; ++i)
{
if (digitSum(arr[i]) == k)
{
// Increase counter
count++;
}
}
System.out.print("\n " + count);
}
public static void main(String[] args)
{
int[] arr = {
17 , 123 , 16 , 60 , 11 , 23 , 42
};
// Get the number of elements
int n = arr.length;
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
}``````

#### Output

`` 3``
``````// Include header file
#include <iostream>
using namespace std;
/*
C++ program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting
{
public: int digitSum(int number)
{
int n = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
int result = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
void countKDigitSum(int arr[], int n, int k)
{
int count = 0;
for (int i = 0; i < n; ++i)
{
if (this->digitSum(arr[i]) == k)
{
// Increase counter
count++;
}
}
cout << "\n " << count;
}
};
int main()
{
int arr[] = {
17 , 123 , 16 , 60 , 11 , 23 , 42
};
// Get the number of elements
int n = sizeof(arr) / sizeof(arr[0]);
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
return 0;
}``````

#### Output

`` 3``
``````// Include namespace system
using System;
/*
Csharp program for
Count the number of array elements whose digit sum are equal to K
*/
public class Counting
{
public int digitSum(int number)
{
int n = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
int result = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
public void countKDigitSum(int[] arr, int n, int k)
{
int count = 0;
for (int i = 0; i < n; ++i)
{
if (this.digitSum(arr[i]) == k)
{
// Increase counter
count++;
}
}
Console.Write("\n " + count);
}
public static void Main(String[] args)
{
int[] arr = {
17 , 123 , 16 , 60 , 11 , 23 , 42
};
// Get the number of elements
int n = arr.Length;
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
}``````

#### Output

`` 3``
``````package main
import "fmt"
/*
Go program for
Count the number of array elements whose digit sum are equal to K
*/
func digitSum(number int) int {
var n int = number
if n < 0 {
// Convert negative number to positive number
n = -n
}
var result int = 0
for (n != 0) {
// Adding last digit of a given number
result = result + (n % 10)
// Remove last digit
n = n / 10
}
return result
}
func countKDigitSum(arr[] int, n int, k int) {
var count int = 0
for i := 0 ; i < n ; i++ {
if digitSum(arr[i]) == k {
// Increase counter
count++
}
}
fmt.Print("\n ", count)
}
func main() {

var arr = [] int {17 , 123 , 16 , 60 , 11 , 23 , 42}
// Get the number of elements
var n int = len(arr)
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
countKDigitSum(arr, n, 6)
}``````

#### Output

`` 3``
``````<?php
/*
Php program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting
{
public	function digitSum(\$number)
{
\$n = \$number;
if (\$n < 0)
{
// Convert negative number to positive number
\$n = -\$n;
}
\$result = 0;
while (\$n != 0)
{
// Adding last digit of a given number
\$result = \$result + (\$n % 10);
// Remove last digit
\$n = (int)(\$n / 10);
}
return \$result;
}
public	function countKDigitSum(\$arr, \$n, \$k)
{
\$count = 0;
for (\$i = 0; \$i < \$n; ++\$i)
{
if (\$this->digitSum(\$arr[\$i]) == \$k)
{
// Increase counter
\$count++;
}
}
echo("\n ".\$count);
}
}

function main()
{
\$arr = array(17, 123, 16, 60, 11, 23, 42);
// Get the number of elements
\$n = count(\$arr);
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
main();``````

#### Output

`` 3``
``````/*
Node JS program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting
{
digitSum(number)
{
var n = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
var result = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = parseInt(n / 10);
}
return result;
}
countKDigitSum(arr, n, k)
{
var count = 0;
for (var i = 0; i < n; ++i)
{
if (this.digitSum(arr[i]) == k)
{
// Increase counter
count++;
}
}
process.stdout.write("\n " + count);
}
}

function main()
{
var arr = [17, 123, 16, 60, 11, 23, 42];
// Get the number of elements
var n = arr.length;
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
main();``````

#### Output

`` 3``
``````#    Python 3 program for
#    Count the number of array elements whose digit sum are equal to K
class Counting :
def digitSum(self, number) :
n = number
if (n < 0) :
#  Convert negative number to positive number
n = -n

result = 0
while (n != 0) :
#  Adding last digit of a given number
result = result + (n % 10)
#  Remove last digit
n = int(n / 10)

return result

def countKDigitSum(self, arr, n, k) :
count = 0
i = 0
while (i < n) :
if (self.digitSum(arr[i]) == k) :
#  Increase counter
count += 1

i += 1

print("\n ", count, end = "")

def main() :
arr = [17, 123, 16, 60, 11, 23, 42]
#  Get the number of elements
n = len(arr)
#  k = 6
#  ----------
#  1 + 2 + 3 = 6
#  6 + 0   = 6
#  4 + 2   = 4
#  [123,60,42]
#  Result = 3

if __name__ == "__main__": main()``````

#### Output

``  3``
``````#    Ruby program for
#    Count the number of array elements whose digit sum are equal to K
class Counting
def digitSum(number)
n = number
if (n < 0)
#  Convert negative number to positive number
n = -n
end

result = 0
while (n != 0)
#  Adding last digit of a given number
result = result + (n % 10)
#  Remove last digit
n = n / 10
end

return result
end

def countKDigitSum(arr, n, k)
count = 0
i = 0
while (i < n)
if (self.digitSum(arr[i]) == k)
#  Increase counter
count += 1
end

i += 1
end

print("\n ", count)
end

end

def main()
arr = [17, 123, 16, 60, 11, 23, 42]
#  Get the number of elements
n = arr.length
#  k = 6
#  ----------
#  1 + 2 + 3 = 6
#  6 + 0   = 6
#  4 + 2   = 4
#  [123,60,42]
#  Result = 3
end

main()``````

#### Output

`` 3``
``````/*
Scala program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting()
{
def digitSum(number: Int): Int = {
var n: Int = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
var result: Int = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
def countKDigitSum(arr: Array[Int], n: Int, k: Int): Unit = {
var count: Int = 0;
var i: Int = 0;
while (i < n)
{
if (digitSum(arr(i)) == k)
{
// Increase counter
count += 1;
}
i += 1;
}
print("\n " + count);
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: Counting = new Counting();
var arr: Array[Int] = Array(17, 123, 16, 60, 11, 23, 42);
// Get the number of elements
var n: Int = arr.length;
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
}``````

#### Output

`` 3``
``````import Foundation;
/*
Swift 4 program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting
{
func digitSum(_ number: Int) -> Int
{
var n: Int = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
var result: Int = 0;
while (n  != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
func countKDigitSum(_ arr: [Int], _ n: Int, _ k: Int)
{
var count: Int = 0;
var i: Int = 0;
while (i < n)
{
if (self.digitSum(arr[i]) == k)
{
// Increase counter
count += 1;
}
i += 1;
}
print("\n ", count, terminator: "");
}
}
func main()
{
let arr: [Int] = [17, 123, 16, 60, 11, 23, 42];
// Get the number of elements
let n: Int = arr.count;
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}
main();``````

#### Output

``  3``
``````/*
Kotlin program for
Count the number of array elements whose digit sum are equal to K
*/
class Counting
{
fun digitSum(number: Int): Int
{
var n: Int = number;
if (n < 0)
{
// Convert negative number to positive number
n = -n;
}
var result: Int = 0;
while (n != 0)
{
// Adding last digit of a given number
result = result + (n % 10);
// Remove last digit
n = n / 10;
}
return result;
}
fun countKDigitSum(arr: Array < Int > , n: Int, k: Int): Unit
{
var count: Int = 0;
var i: Int = 0;
while (i < n)
{
if (this.digitSum(arr[i]) == k)
{
// Increase counter
count += 1;
}
i += 1;
}
print("\n " + count);
}
}
fun main(args: Array < String > ): Unit
{
val arr: Array < Int > = arrayOf(17, 123, 16, 60, 11, 23, 42);
// Get the number of elements
val n: Int = arr.count();
// k = 6
// ----------
// 1 + 2 + 3 = 6
// 6 + 0   = 6
// 4 + 2   = 4
// [123,60,42]
// Result = 3
}``````

#### Output

`` 3``

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