Why the first code cannot solve the code coach skee-ball?

Question

Here is the code coach:
https://www.sololearn.com/coach/21?ref=app
I was solving the code coach skee-ball. I tried to solve the code coach with this code:
https://code.sololearn.com/c64hfcKDg3ar/?ref=app
but it's not solving the third test. Then I edited a little .Instead of this condition:
ticket/gun>=1
I used this:
ticket>=gun
https://code.sololearn.com/cV5r9jy627V7/?ref=app
and it works fine.
I couldn't figure out what's the problem in the first code . From my thinking, the two code should give the same result.So why the third test failed in the first code?

Answer 1

After much black box testing, at last I deduced that Test Case #3 sets the price of the squirt gun to zero. That causes division by zero in your conditional. Proof: change the conditional to check for zero.

if(gun==0 || ticket/gun>=1)

Now it passes the test!

Answer 2

Thank you very much Volodymyr Chelnokov and Brian for cleaning my doubts .Before writing the second code, I wrote the line x=ticket/gun but didn't used the value of x in the condition ,yet the test case fails. Now I figured out only declaring the line x= ticket/gun or writing the condition if(ticket/gun>=1) will cause timeout error if the gun=0. Thanks to you two.

Answer 3

Maybe gun is 0 in the third test?