Coding Problems - Modules 1-6

Question 1

Write an expression that evaluates to True if x is even

Answer 1

x%2==0

the remainder of x/2 is equal to 0

Question 2

Write a ‘while loop’ that counts down from 5 to 1, then prints blastoff!

Answer 2

n=5
while n>0:
\_\_\_\_print(n)
\_\_\_\_n-=1
print("blastoff!")

Question 3

List the 3 different ways to divide

Answer 3

integer (floor) division //
regular division /
modulus % (returns remainder ONLY)

Question 4

How do you determine the data type of a value?

Answer 4

type(value)

Question 5

What mathematical operations can you perform on strings?

Answer 5

+ and *

Question 6

What happens if you put a semi-colon at end of statement? What about a period?

Answer 6

Semi-colon - nothing

Period - syntax error

Question 7

When can you use return statements?

Answer 7

ONLY inside functions

Question 8

How to convert to string, float, and integer?

Answer 8

str(32)
'32'
float(32)
32.0
int(32.3)
32

Question 9

Print(x,y) and print(x+y)

Answer 9

x_y vs. xy
comma will default to space separator
to change this, print(x,y,sep=”\n”)

Question 10

Write a function called do_twice that takes a function object as an argument and calls itself twice

Answer 10

def do_twice(f):
____f()
____f()

Question 11

By default, print advances to the next line. How do you override that behavior?

Answer 11

print(“yes”,end=” “)
print(“no”)
yes no

Question 12

How to break up a long line of code without any errors

Answer 12

print(“let’s practice”,\
“breaking this up”)
let’s practice breaking this up