Write programs with loops that compute a. The sum of all even numbers between 2 and 100 (inclusi

Question

Write programs with loops that compute
a. The sum of all even numbers between 2 and 100 (inclusive).
b. The sum of all squares between 1 and 100 (inclusive).
c. All powers of 2 from 20 up to 220.
d. The sum of all odd numbers between a and b (inclusive), where a and b are
user inputs.
e. The sum of all odd digits of an input. (For example, if the input is 32677, the
sum would be 3 + 7 + 7 = 17.)

Answer 1

 

a:

sum = 0

for i in range(0, 101):

    if i%2 == 0:

        sum = sum + i

alternatively you could do for i in range(0, 101, 2) and leave out the i%2 line

 

b:

sum = 0

for i in range(0, 101):

    sum = sum + i*i

 

c:

value = 2

while value <= 220:

    if value > 20:

        sum = sum + value

    value = value * 2

 

d:

a = int(input("Input a"))

b = int(input("Input b"))

sum = 0

for i in range(a, b+1):

    sum = sum + i

 

e:

word = input("Input a number")

sum = 0

for letter in word:

    if isdigit(letter):

        sum = sum + int(letter)

 

I'm sure this is past due, but feel free to reach out if you have any other questions :)