24.2 - First Missing Positive Entry - Weak Test Cases in EPIJudge



First of all. Great resource for getting hands on programming interviews. We can improve the test cases in epi-judge-java for the same. I was able to pass all the tests with insufficient clauses in while loop.

Given in the book is:
while (0 < A.get(i) && A.get(i) <= A.size() && !A.get(A.get(i) - 1).equals(A.get(i))

I was able to pass the tests with
while (0 < A.get(i) && !A.get(A.get(i) - 1).equals(A.get(i))

I realize A.get(i) <= A.size() is an important clause for some use-cases.
My two cents.