Solved Homework: Question: This assignment is to provide you with practice using loops. Thus loops should be used wherever a…

This assignment is to provide you with practice using loops. Thus loops should be used wherever appropriate. Other methods of solving the problems will not receive full marks even though they may work. The use of the “break” keyword is not permitted in this assignment. Also, using loops such as “while True:” is bad practice. Reduced marks will be given for solutions that use such constructs. A 2 dimensional list of integers will be used in this program (a list of lists). Each sublist is a “row”. For example: integerList = [[4, 7, 9], [3, 6, 7], [14, 13, 12], [6, 12, 222]] Write a function that takes in a 2 dimensional list as shown as a parameter and returns True if all the rows add up to an even number, and returns False otherwise (if any of the rows add to an odd number). Your function should work for sublists of any length (and of variable lengths — for instance, a list such as [[1, 2], [5, 6, 7]] would be a valid input. Your program should work for a list with any number of sublists. Be sure to test your program with different list sizes and combinations of integers. Show your test cases by writing a function that shows the results for several cases. This test function should run when your program starts up. Show the user what the test case is and the result. Your program must not require any user input.

Expert Answer

answers

Hi,

I completed your lesson. Here I am sending complete code with comments for better explanation. I did not use break and while loop, as you said in question. I tested 3-different types of 2-D list. I am also sending screenshot of execution. Message me for any clarifications.

PLEASE POST YOUR VALUABLE REVIEW THUMSUP!!

#check_2D_list.py

#function takes 2-D list of integers
def is_rows_sum_even(integerList):
for r in range(0,len(integerList)): #repeat rows
s=0 #initial s is zero, this is for sum
for c in range(0,len(integerList[r])): #repeat columns
s=s+integerList[r][c] #add each element of row to s
if s%2!=0: #when remainder is not zero
return False
return True #when all rows sum is even, return true

#main function
intList1=[[4,7,9],[3,6,7],[14,13,12],[6,12,222]] #create list
print(is_rows_sum_even(intList1))
intList2=[[1,2],[5,6,7]] #create another list
print(is_rows_sum_even(intList2))
intList3=[[4,2],[5,6,7],[4,2,6,2]] #create another list even numbers
print(is_rows_sum_even(intList3))

#Screenshot of execution

Sat 20:50. Terminal File Edit view Search Terminal Help False False True (program exited with code: 0) Press return to continue

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