Question

In: Computer Science

Exercise Define a function that generates a random code. The functions takes in a string colors...

Exercise Define a function that generates a random code. The functions takes in

  • a string colors whose characters represent distinct colors to choose from, and
  • a positive integer code_length representing the length of the code.

For instance, get_code('ROYGBP',4) returns a code of 4 code pegs randomly with colors chosen from 'R'ed, 'O'range, 'Y'ellow, 'G'reen, 'B'lue, and 'P'urple. One possible outcome is 'ROYY'.

Following is my python code, and I don't know how to continue, can someone help me to finished it?

And I want to know how to random the colors code length time(s) ,such as random.choice(''ROYGBP") by code length time to get particular numbers of colors, e.g.code length is 4 and 4 random colors, code length is 2 and get 2 random colors.

Thus, the hints given that''In each iteration, generate a random (integer) position in range 0 to len(colors)-1.'', I want to ask why isn't it the range from 1 to 6?

 
import random
def get_code(colors, code_length):
    code = ''
    """
    The function body will iterate code_length times.
    In each iteration, generate a random (integer) position in range 0 to len(colors)-1. 
    From color, get the character at that random position and append the character to code
    """
    colors = 'ROYGBP'
    code_length = (random.randint(1,6))
    return code

Do you mean the possible outcome?

Solutions

Expert Solution

Please find below code and explanation in comments and Don't forget to give a Like.

Code:

import random
def get_code(colors, code_length):
    code = ''
    #we use while loop since we want to run the function body code_length times
    while(code_length!=0):
        #taking the length of color in variable length
        length=len(colors)-1
        #generating the randome number from 0 to length of color-1
        #we are taking 0 to length-1 and not 1 to length because string index starts from 0
        #string is RRBYYO if we want to get 1st letter then string[0] gives R
        random_num=random.randint(0,length)
        #string slicing getting random number from above line and appending that
        #letter from colors to code colors[random_num] gives letter at that postition
        code=code+colors[random_num]
        #we need to decrement code_length by 1 so that while loop run will be decreased
        #if we don't decrement code_length then this loop will go to infinite times
        code_length-=1
    return code
#taking input from user
colors=input("Enter the colors:")
#taking code_length from user
code_length=int(input("Enter code length:"))
print(get_code(colors,code_length))#calling function and printing code

Please refer below screenshot for indentation and output:

venereology answered 2 months ago
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