The code is not passing all test cases. What's wrong?

#1

Ques:

Given a integer as a input and replace all the ‘0’ with ‘5’ in the integer

My code:

#2

Modified Code

your Mistakes

  1. use long long int as input is large
  2. if n = 0 then answer should be 5 (handle this case explicitly)

check modified code
if you have any doubt feel free to ask

#3

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