How can i retain the value of a variable in python using while loops and if statements?

Question

a=50
i=50
while i>=0:
b=int(input())
if b==1:
i=a-5
if b==2:
print(i)
I want the value of i to decrease to zero but it is not decreasing and is stuck at 45.

Answer 1

I changed your code so it looks like this and works fine

i=50
b=int(input())

while i>=0:
if b==1:
i=i-5
print(i)
if b==2:
print(i)

I removed a as it is unnecessary

And as Honfu said i is always 45 as you assign i to a-5 ( without changing a ANYWHERE!)

So it should look like i = i - 5 or i -= 5

Also I moved the input part to the top so you need only 1 input (otherwise you'll have to enter about 10 inputs and face EOF errors)

Answer 2

You wrote i = a-5.

You change a nowhere in your loop, so it's always 50.

So i is always 45.