python code. Instructions are given below for each function. Run function is already done. 1) def num_to_digit_rec(num, base): """ Return a list of digits for num with given base; Return an empty list [] if base < 2 or num <= 0 """ # Write your code here return [] 2) def digit_sum(num, base): """ Return the sum of all digits for a num with given base Your implementation should use num_to_digit_rec() function """ # Write your code here return 0 3) def digit_str(num, base): """ Given a number and a base, for base between [2, 36] inclusive Converts the number to its string representation using digits 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ to represent digits 0 to 35. Return the string representation of the number Return an empty string '' if base is not between [2, 36] Your implementation should use num_to_digit_rec() function """ digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Can not find str representations for base not in [2, 36] if base > 36 or base < 2: return "" # Calculate and return the str representation for num for the given base # Write your code here return "" 4) def digit_to_num(rep, base): """ Return -1 if base is not between [2,36] inclusive; or if the string rep contains characters not a digit for the base; Return the number represented by the string for the given base otherwise. For example digit_to_num("1001", 2) is 9; digit_to_num("ABC", 16) is 2748. """ # Check if the base is valid if base > 36 or base < 2: return -1 digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" rep = rep.upper() # Check if the rep only uses proper digits # Write your code here return 0 5) def uses_only(word, letters): """ Return True if word only uses characters from letters; otherwise return False """ # Write your code here return True 6) def run(): num = int(input("Enter a num: ")) base = int(input("Enter a base: ")) print(f"Digit list is {num_to_digit_rec(num, base)}") print(f"Digit sum is {digit_sum(num, base)}") print(f"String Rep is {digit_str(num, base)}") rep = input(f"Enter a string rep of a num with base {base}: ") print(f"The number is {digit_to_num(rep, base)}")

python code. Instructions are given below for each function. Run function is already done. 1) def num_to_digit_rec(num, base): """ Return a list of digits for num with given base; Return an empty list [] if base < 2 or num <= 0 """ # Write your code here return [] 2) def digit_sum(num, base): """ Return the sum of all digits for a num with given base Your implementation should use num_to_digit_rec() function """ # Write your code here return 0 3) def digit_str(num, base): """ Given a number and a base, for base between [2, 36] inclusive Converts the number to its string representation using digits 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ to represent digits 0 to 35. Return the string representation of the number Return an empty string '' if base is not between [2, 36] Your implementation should use num_to_digit_rec() function """ digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" # Can not find str representations for base not in [2, 36] if base > 36 or base < 2: return "" # Calculate and return the str representation for num for the given base # Write your code here return "" 4) def digit_to_num(rep, base): """ Return -1 if base is not between [2,36] inclusive; or if the string rep contains characters not a digit for the base; Return the number represented by the string for the given base otherwise. For example digit_to_num("1001", 2) is 9; digit_to_num("ABC", 16) is 2748. """ # Check if the base is valid if base > 36 or base < 2: return -1 digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" rep = rep.upper() # Check if the rep only uses proper digits # Write your code here return 0 5) def uses_only(word, letters): """ Return True if word only uses characters from letters; otherwise return False """ # Write your code here return True 6) def run(): num = int(input("Enter a num: ")) base = int(input("Enter a base: ")) print(f"Digit list is {num_to_digit_rec(num, base)}") print(f"Digit sum is {digit_sum(num, base)}") print(f"String Rep is {digit_str(num, base)}") rep = input(f"Enter a string rep of a num with base {base}: ") print(f"The number is {digit_to_num(rep, base)}")

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

python code. Instructions are given below for each function. Run function is already done.

1) def num_to_digit_rec(num, base):

"""

Return a list of digits for num with given base;

Return an empty list [] if base < 2 or num <= 0

"""

# Write your code here

return []

2) def digit_sum(num, base):

"""

Return the sum of all digits for a num with given base

Your implementation should use num_to_digit_rec() function

"""

# Write your code here

return 0

3) def digit_str(num, base):

"""

Given a number and a base, for base between [2, 36] inclusive

Converts the number to its string representation using digits

0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ

to represent digits 0 to 35.

Return the string representation of the number

Return an empty string '' if base is not between [2, 36]

Your implementation should use num_to_digit_rec() function

"""

digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"

# Can not find str representations for base not in [2, 36]

if base > 36 or base < 2:

return ""

# Calculate and return the str representation for num for the given base

# Write your code here

return ""

4) def digit_to_num(rep, base):

"""

Return -1 if base is not between [2,36] inclusive;

or if the string rep contains characters not a digit for the base;

Return the number represented by the string for the given base otherwise.

For example digit_to_num("1001", 2) is 9; digit_to_num("ABC", 16) is 2748.

"""

# Check if the base is valid

if base > 36 or base < 2:

return -1

digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"

rep = rep.upper()

# Check if the rep only uses proper digits

# Write your code here

return 0

5) def uses_only(word, letters):

"""

Return True if word only uses characters from letters;

otherwise return False

"""

# Write your code here

return True

6) def run():

num = int(input("Enter a num: "))

base = int(input("Enter a base: "))

print(f"Digit list is {num_to_digit_rec(num, base)}")

print(f"Digit sum is {digit_sum(num, base)}")

print(f"String Rep is {digit_str(num, base)}")

rep = input(f"Enter a string rep of a num with base {base}: ")

print(f"The number is {digit_to_num(rep, base)}")

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