# Sum of bit differences among all pairs

Here given code implementation process.

```
// C Program
// Sum of bit differences among all pairs
#include <stdio.h>
// Find the bit differences of existing all pairs in given array
int pairBitDifference(int arr[], int n)
{
// Define resultant variable
int result = 0;
// Define some counter variables
int i = 0;
int j = 0;
int counter = 0;
// Assume that array element is less than 32 bits
for (i = 0; i <= 31; ++i)
{
for (j = 0; j < n; ++j)
{
if (arr[j] & (1 << i))
{
// When position of (i) bits is active of element in array[j] number.
counter++;
}
}
// Calculate bit's difference
// (counter *n) Multiply number of active bits by number of array element
// (counter *counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter *n) - (counter *counter)) *2;
// reset the bit counter
counter = 0;
}
return result;
}
int main(int argc, char const *argv[])
{
// Define array of integer elements
int arr[] = {
1 , 4 , 3
};
// Get the number of array elements
int n = sizeof(arr) / sizeof(arr[0]);
// Get the difference of all bit pairs
int result = pairBitDifference(arr, n);
// Display calculated result
printf("\n Result : %d", result);
return 0;
}
```

#### Output

` Result : 12`

```
/*
Java program
Sum of bit differences among all pairs
*/
public class BitDifference
{
// Find the bit differences of existing all pairs in given array
public int pairBitDifference(int[] arr, int n)
{
// Define resultant variable
int result = 0;
// Define some counter variables
int i = 0;
int j = 0;
int counter = 0;
// Assume that array element is less than 32 bits
for (i = 0; i <= 31; ++i)
{
for (j = 0; j < n; ++j)
{
if ((arr[j] & (1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter++;
}
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
}
return result;
}
public static void main(String[] args)
{
BitDifference task = new BitDifference();
// Define array of integer elements
int[] arr = {
1 , 4 , 3
};
// Get the number of array elements
int n = arr.length;
// Get the difference of all bit pairs
int result = task.pairBitDifference(arr, n);
// Display calculated result
System.out.print("\n Result : " + result);
}
}
```

#### Output

` Result : 12`

```
// Include header file
#include <iostream>
using namespace std;
/*
C++ program
Sum of bit differences among all pairs
*/
class BitDifference
{
public:
// Find the bit differences of existing all pairs in given array
int pairBitDifference(int arr[], int n)
{
// Define resultant variable
int result = 0;
// Define some counter variables
int i = 0;
int j = 0;
int counter = 0;
// Assume that array element is less than 32 bits
for (i = 0; i <= 31; ++i)
{
for (j = 0; j < n; ++j)
{
if ((arr[j] &(1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter++;
}
}
// Calculate bit's difference
// (counter *n) Multiply number of active bits by number of array element
// (counter *counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter *n) - (counter *counter)) *2;
// reset the bit counter
counter = 0;
}
return result;
}
};
int main()
{
BitDifference task = BitDifference();
// Define array of integer elements
int arr[] = {
1 , 4 , 3
};
// Get the number of array elements
int n = sizeof(arr) / sizeof(arr[0]);
// Get the difference of all bit pairs
int result = task.pairBitDifference(arr, n);
// Display calculated result
cout << "\n Result : " << result;
return 0;
}
```

#### Output

` Result : 12`

```
// Include namespace system
using System;
/*
C# program
Sum of bit differences among all pairs
*/
public class BitDifference
{
// Find the bit differences of existing all pairs in given array
public int pairBitDifference(int[] arr, int n)
{
// Define resultant variable
int result = 0;
// Define some counter variables
int i = 0;
int j = 0;
int counter = 0;
// Assume that array element is less than 32 bits
for (i = 0; i <= 31; ++i)
{
for (j = 0; j < n; ++j)
{
if ((arr[j] & (1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter++;
}
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
}
return result;
}
public static void Main(String[] args)
{
BitDifference task = new BitDifference();
// Define array of integer elements
int[] arr = {
1 , 4 , 3
};
// Get the number of array elements
int n = arr.Length;
// Get the difference of all bit pairs
int result = task.pairBitDifference(arr, n);
// Display calculated result
Console.Write("\n Result : " + result);
}
}
```

#### Output

` Result : 12`

```
<?php
/*
Php program
Sum of bit differences among all pairs
*/
class BitDifference
{
// Find the bit differences of existing all pairs in given array
public function pairBitDifference( & $arr, $n)
{
// Define resultant variable
$result = 0;
// Define some counter variables
$i = 0;
$j = 0;
$counter = 0;
// Assume that array element is less than 32 bits
for ($i = 0; $i <= 31; ++$i)
{
for ($j = 0; $j < $n; ++$j)
{
if (($arr[$j] & (1 << $i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
$counter++;
}
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
$result += (($counter * $n) - ($counter * $counter)) * 2;
// reset the bit counter
$counter = 0;
}
return $result;
}
}
function main()
{
$task = new BitDifference();
// Define array of integer elements
$arr = array(1, 4, 3);
// Get the number of array elements
$n = count($arr);
// Get the difference of all bit pairs
$result = $task->pairBitDifference($arr, $n);
// Display calculated result
echo "\n Result : ". $result;
}
main();
```

#### Output

` Result : 12`

```
/*
Node Js program
Sum of bit differences among all pairs
*/
class BitDifference
{
// Find the bit differences of existing all pairs in given array
pairBitDifference(arr, n)
{
// Define resultant variable
var result = 0;
// Define some counter variables
var i = 0;
var j = 0;
var counter = 0;
// Assume that array element is less than 32 bits
for (i = 0; i <= 31; ++i)
{
for (j = 0; j < n; ++j)
{
if ((arr[j] & (1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter++;
}
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
}
return result;
}
}
function main()
{
var task = new BitDifference();
// Define array of integer elements
var arr = [1, 4, 3];
// Get the number of array elements
var n = arr.length;
// Get the difference of all bit pairs
var result = task.pairBitDifference(arr, n);
// Display calculated result
process.stdout.write("\n Result : " + result);
}
main();
```

#### Output

` Result : 12`

```
# Python 3 program
# Sum of bit differences among all pairs
class BitDifference :
# Find the bit differences of existing all pairs in given array
def pairBitDifference(self, arr, n) :
# Define resultant variable
result = 0
# Define some counter variables
i = 0
j = 0
counter = 0
# Assume that array element is less than 32 bits
while (i <= 31) :
while (j < n) :
if ((arr[j] & (1 << i)) == 0) :
# When position of (i) bits is active of element in array[j] number.
counter += 1
j += 1
# Calculate bit's difference
# (counter * n) Multiply number of active bits by number of array element
# (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2
# reset the bit counter
counter = 0
i += 1
j = 0
return result
def main() :
task = BitDifference()
# Define array of integer elements
arr = [1, 4, 3]
# Get the number of array elements
n = len(arr)
# Get the difference of all bit pairs
result = task.pairBitDifference(arr, n)
# Display calculated result
print("\n Result : ", result, end = "")
if __name__ == "__main__": main()
```

#### Output

` Result : 12`

```
# Ruby program
# Sum of bit differences among all pairs
class BitDifference
# Find the bit differences of existing all pairs in given array
def pairBitDifference(arr, n)
# Define resultant variable
result = 0
# Define some counter variables
i = 0
j = 0
counter = 0
# Assume that array element is less than 32 bits
while (i <= 31)
while (j < n)
if ((arr[j] & (1 << i)) == 0)
# When position of (i) bits is active of element in array[j] number.
counter += 1
end
j += 1
end
# Calculate bit's difference
# (counter * n) Multiply number of active bits by number of array element
# (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2
# reset the bit counter
counter = 0
i += 1
j = 0
end
return result
end
end
def main()
task = BitDifference.new()
# Define array of integer elements
arr = [1, 4, 3]
# Get the number of array elements
n = arr.length
# Get the difference of all bit pairs
result = task.pairBitDifference(arr, n)
# Display calculated result
print("\n Result : ", result)
end
main()
```

#### Output

` Result : 12`

```
/*
Scala program
Sum of bit differences among all pairs
*/
class BitDifference
{
// Find the bit differences of existing all pairs in given array
def pairBitDifference(arr: Array[Int], n: Int): Int = {
// Define resultant variable
var result: Int = 0;
// Define some counter variables
var i: Int = 0;
var j: Int = 0;
var counter: Int = 0;
// Assume that array element is less than 32 bits
while (i <= 31)
{
while (j < n)
{
if ((arr(j) & (1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter += 1;
}
j += 1;
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
i += 1;
j = 0;
}
return result;
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: BitDifference = new BitDifference();
// Define array of integer elements
var arr: Array[Int] = Array(1, 4, 3);
// Get the number of array elements
var n: Int = arr.length;
// Get the difference of all bit pairs
var result: Int = task.pairBitDifference(arr, n);
// Display calculated result
print("\n Result : " + result);
}
}
```

#### Output

` Result : 12`

```
/*
Swift 4 program
Sum of bit differences among all pairs
*/
class BitDifference
{
// Find the bit differences of existing all pairs in given array
func pairBitDifference(_ arr: [Int], _ n: Int)->Int
{
// Define resultant variable
var result: Int = 0;
// Define some counter variables
var i: Int = 0;
var j: Int = 0;
var counter: Int = 0;
// Assume that array element is less than 32 bits
while (i <= 31)
{
while (j < n)
{
if ((arr[j] & (1 << i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter += 1;
}
j += 1;
}
// Calculate bit"s difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
i += 1;
j = 0;
}
return result;
}
}
func main()
{
let task: BitDifference = BitDifference();
// Define array of integer elements
let arr: [Int] = [1, 4, 3];
// Get the number of array elements
let n: Int = arr.count;
// Get the difference of all bit pairs
let result: Int = task.pairBitDifference(arr, n);
// Display calculated result
print("\n Result : ", result, terminator: "");
}
main();
```

#### Output

` Result : 12`

```
/*
Kotlin program
Sum of bit differences among all pairs
*/
class BitDifference
{
// Find the bit differences of existing all pairs in given array
fun pairBitDifference(arr: Array < Int > , n: Int): Int
{
// Define resultant variable
var result: Int = 0;
// Define some counter variables
var i: Int = 0;
var j: Int = 0;
var counter: Int = 0;
// Assume that array element is less than 32 bits
while (i <= 31)
{
while (j < n)
{
if ((arr[j] and(1 shl i)) == 0)
{
// When position of (i) bits is active of element in array[j] number.
counter += 1;
}
j += 1;
}
// Calculate bit's difference
// (counter * n) Multiply number of active bits by number of array element
// (counter * counter) Multiply active bits of itself which is exist in (ith) position
result += ((counter * n) - (counter * counter)) * 2;
// reset the bit counter
counter = 0;
i += 1;
j = 0;
}
return result;
}
}
fun main(args: Array <String> ): Unit
{
var task: BitDifference = BitDifference();
// Define array of integer elements
var arr: Array <Int> = arrayOf(1, 4, 3);
// Get the number of array elements
var n: Int = arr.count();
// Get the difference of all bit pairs
var result: Int = task.pairBitDifference(arr, n);
// Display calculated result
print("\n Result : " + result);
}
```

#### Output

` Result : 12`

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