Bubble sort in multiple languages

c_bs.c

#include <stdio.h>
#define SIZE 8

int main()
{
	// Declare Array
	int A[SIZE] = {6,5,3,1,8,7,2,4};

	// Set length
	int N = SIZE;

	// as long as there are things left to compare
	while (N > 0)
	{
	    // put 0 into i
	    int i = 0;

	    // while i is less than N
	    while (i < N-1)
	    {
	        // if left > right
	        if (A[i] > A[i+1])
	        {
	            // swap them
	            int temp = A[i];
	            A[i]     = A[i+1];
	            A[i+1]   = temp;
	        }
	    
	        // increment i
	        i += 1;
	    }

	    // decrease total things to compare
	    N -= 1;
	}

	// print the array
	for (int c=0; c<SIZE; c++)
		printf("%d, ", A[c]);
	printf("\n");
}

Java_BS.java

import java.util.Arrays;

public class Java_BS 
{
	public static void main(String[] args)
	{
		// Declare Array
		int[] A = {6,5,3,1,8,7,2,4};

		// Set length
		int N = A.length;

		// as long as there are things left to compare
		while (N > 0)
		{
		    // put 0 into i
		    int i = 0;

		    // while i is less than N
		    while (i < N-1)
		    {
		        // if left > right
		        if (A[i] > A[i+1])
		        {
		            // swap them
		            int temp = A[i];
		            A[i]     = A[i+1];
		            A[i+1]   = temp;
		        }
		    
		        // increment i
		        i += 1;
		    }

		    // decrease total things to compare
		    N -= 1;
		}

		// print the array
		System.out.println(Arrays.toString(A));
	}
}

javascript-bs.js

// Declare Array
var A = [6,5,3,1,8,7,2,4];

// Set length
var N = A.length;

// as long as there are things left to compare
while (N > 0)
{
    // put 0 into i
    var i = 0;
    
    // while i is less than N
    while (i < N-1)
    {
        // if left > right
        if (A[i] > A[i+1])
        {
            // swap them
            var temp = A[i];
            A[i]     = A[i+1];
            A[i+1]   = temp;
        }
        
        // increment i
        i += 1;
    }
    
    // decrease total things to compare
    N -= 1;
}

// print the array
console.log(A)

python-bs.py

# Declare Array
A = [6,5,3,1,8,7,2,4]

# Set length
N = len(A)

# as long as there are things left to compare
while N > 0:

    # put 0 into i
    i = 0 

    # while i is less than N
    while i < N-1:
    
        # if left > right
        if A[i] > A[i+1]:
    
            # swap them
            temp   = A[i]
            A[i]   = A[i+1]
            A[i+1] = temp
    
        # increment i
        i += 1

    # decrease total things to compare
    N -= 1

# print the array
print(A)

ruby-bs.rb

# Declare Array
A = [6,5,3,1,8,7,2,4]

# Set length
N = A.length()

# as long as there are things left to compare
while N > 0 do
    
    # put 0 into i
    i = 0

    # while i is less than N
    while i < N-1 do
        
        # if left > right
        if A[i] > A[i+1] then
            
            # swap them
            temp   = A[i]
            A[i]   = A[i+1]
            A[i+1] = temp
        end
        
        # increment i
        i += 1
    end
    
    # decrease total things to compare
    N -= 1
end

# print the array
print(A, "\n")

swift-bs.swift

// Declare Array
var A = [6,5,3,1,8,7,2,4]

// Set length
var N = A.count

// as long as there are things left to compare
while N > 0
{
    // put 0 into i
    var i = 0

    // while i is less than N
    while i < N-1
    {
        // if left > right
        if A[i] > A[i+1]
        {
            // swap them
            var temp = A[i]
            A[i]     = A[i+1]
            A[i+1]   = temp
        }

        // increment i
        i += 1
    }

    // decrease total things to compare
    N -= 1
}

// print the array
print(A)

z-instructions.md

Visualization

Compiling and Running

Clone the repo:

git clone https://gist.github.com/vgmoose/403fee8751b920cab955
cd 403fee8751b920cab955

C

gcc c_bs.c
./a.out

Java

javac Java_BS.java
java Java_BS

Javascript

node javascript-bs.js

Python

python python-bs.py

Ruby

ruby ruby-bs.rb

Swift

swift swift-bs.swift

High level Differences

C

• Uses // for comments
• Uses int for integer variables
• Uses int* for integer arrays
• Uses () and {} for loops and blocks
• Arrays must have their size specified
• Has no way to print an array without a loop

Java

• Uses // for comments
• Uses int for integer variables
• Uses int[] for integer arrays
• Uses () and {} for loops and blocks

Javascript

• Uses // for comments
• Uses var for all variables
• Uses () and {} for loops and blocks

Python

• Uses # for comments
• Uses whitespace for loops and blocks

Ruby

• Uses # for comments
• Uses do/then..end for blocks

Swift

• Uses // for comments
• Uses var for all variables
• Uses {} for blocks