Answer 1

Sample input : 126
126-50=76
76%50 = 26 but
Correct answer is 24. Rethink logic..

For Code project : there expects only required answer, not less or more character on output.
Your code prints
"Bus..."
"Enter how... : " 26

But expected output is just :
24

Answer 2

Yes. It works fine. You can save code in Sololearn and share link here..
Where are you trying this? As I said, if it is in code coach then comment your first 2 couts. Then check..