TestCase 4 & 5 results wrong answer

#1

How can i know which test case is getting wrong in my program?

#2

probably you have an option of unlocking the testcases…but think about the corner cases for some time…as it will enhance your skills

#3

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#4

where is ur code?

possible mistakes:

take the n in long.
modify the value if it is >=5
but dont modify the first digit if it is 9.( first digit will become 0)

hope this will help u

#5

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