Question

This is a short but tricky program that uses multiple variables and tuple assignment. Fill in the blanks such that the output is "10".

a = ((2,4), (1, 6))
b, (c, d) = a
e = ____ + ____ [ ____ ]
print(e) # Should print "10"

First blank:                            [ Select ]                       ["c", "b", "e", "d", "a"]      

Second blank:                            [ Select ]                       ["b", "a", "d", "c", "e"]      

Third blank:

Answer 1

This is simple if you see the above lines of code one by one:

a = ((2,4), (1, 6))

It assigns two lists elements- (2,4) and (1,6) to the variable a.

b, (c, d) = a

This line makes some reassignments. As can be seen with one to one correspondence. the element b will now be equals to (2,4) and (c,d) will be equals to (1,6). So, c=1 and d=6.

So, In order to print 10, you need to have e=10 which can be obtained using e=6+4. Utlizing the above variable assignments, this can be written as

e=d+b[1].

Thus, the answer to missing blanks are as follows:

First Blank: d

Second Blank: b

Third Blank: 1