Just finished one more problem. Got 34 solved now.

For some reason, I don't feel like posting notes on Facebook although its tagging system is really good for noticing everyone else. Blogging here, on the other hand, reserves for me some privacy.

I've just finished coding a simple tree problem. Finally got accepted. The bad thing here is it took too long to complete it. However, it is really the first time I program a tree using pointers in C++. Actually have done with pointer a few time in Pascal some YEARS AGO, but I always try to avoid algorithms using any method with pointers (binary array or using recursive calls instead). That's why I'm really naive with them. One good point is I have looked up for 2 other solutions online for reference and both of them are 2 times longer than mine. Time is used for trading optimism, isn't it ?

Hey, keep up working till this year regional ACM then!