Here is the progress report of the algorithm at 10:05 pm.
Now it is 10:41 pm, Julia checked the edge case:
1. A single digit is a valid palindrome.
2. Note that a sequence of only element can contain , but is invalid as it contains a leading zero.
Julia fixed the bug related to edge case, now she scored 60 out of maximum score 60. Very good, Julia started to go over the problem statement and found the bug. She checked that scores on leader board from 50.00, 51.67, 53.3, 56.66, 58.33, 60.00. Last time she scored 50.00. So she tried to find small edge cases, but she found all of them.
Progress report
One thing Julia learned through the algorithm is that she has to take care all small edge cases, she failed test case 40 and 41, and then she figured out the edge case and submitted on June 16, 2017.
Now it is 8:53 am. And Julia had one test case with timeout issue, she has no idea to solve the issue.
To play the contest, Julia learns a few things, one thing is to write down test cases for small edge cases. Think carefully.
Follow up after the contest
Here is the code submitted in the contest, which passed all test cases except timeout on test case 30.
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