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How to code this in python? Mini-Exercise 3 Complete the following questions, hand-written on paper. You will hand this in during your first lab
How to code this in python?
""" Mini-Exercise 3 Complete the following questions, hand-written on paper. You will hand this in during your first lab after reading week. :) """ from typing import List # Q1 A: Complete the following function: def is_ok(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return true iff every student in class_list is in exactly one group according to group_list. Note: class_list is a list of student numbers group_list is a list of lists, with each sublist containing all the student numbers in one group. >>> is_ok([[1, 2], [3]], [1, 2, 3]) True >>> is_ok([[1, 2], [3]], [1, 2, 3, 4]) False ''' # YOUR CODE HERE pass # Q1 B: Clearly, briefly explain what is wrong about the following attempt. # Include at least one example of a function call that it would return the wrong # output for, clearly stating both the incorrect output it would return and the # expected, correct output it should return if the function worked def is_ok_wrong1(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return true iff every student in class_list is in exactly one group according to group_list. ''' for student in class_list: if group_list.count(student) != 1: return False return True # Q1 C: Clearly, briefly explain what is wrong about the following attempt. # Include at least one example of a function call that it would return the wrong # output for, clearly stating both the incorrect output it would return and the # expected, correct output it should return if the function worked def is_ok_wrong2(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return true iff every student in class_list is in exactly one group according to group_list. ''' for student in class_list: for group in group_list: if group.count(student) != 1: return False return True # Q1 D: Clearly, briefly explain what is wrong about the following attempt. # Include at least one example of a function call that it would return the wrong # output for, clearly stating both the incorrect output it would return and the # expected, correct output it should return if the function worked def is_ok_wrong3(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return true iff every student in class_list is in exactly one group according to group_list. ''' for student in class_list: counter = 0 for group in group_list: if student in group: counter += 1 return counter == 1 # Q2 Complete the following function: def no_extra_members(group_list: List[List[int]], class_list: List[int]) -> bool: ''' Return True iff every student in group_list is a member of class_list. >>> no_extra_members([[1, 3, 4], [2]], [1, 2, 3, 4]) True >>> no_extra_members([[1, 2], [3, 4]], [1, 2, 4]) False ''' # YOUR CODE HERE pass # Q3 Complete the following function: def col_sums(lst: List[List[int]]) -> List[int]: ''' Return a new list that contains the sum of each column in lst. All columns in lst are of the same length. >>> col_sums([[5, 10, 15], [1, 2, 3]]) [6, 12, 18] ''' # YOUR CODE HERE pass
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