l_l's blog

By l_l, history, 6 years ago, In English


I have solved Question 547C, but when I submit my answer it gives me runtime error for gnuG++11 and wrong answer on test three for gnuG++ even though the test case works for me.

Here's a link to my submission:


Basically, my approach to this problem is that I save the relation between all foam heights (whether coprime or not) in a two-dimensional vector "bool coprime". Then using that info I update the new score by calculating the difference in score after a beer is placed or removed. The time complexity of this approach is O(n^2).

I would appreciate it if anyone can figure out what's going on.


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