[LeetCode#254] Factor Combinations

Problem: Numbers can be regarded as product of its factors. For example, Write a function that ...

[LeetCode#265] Paint House II

Problem: There are a row of n houses, each house can be painted with one of the k colors. The cost ...

[LeetCode#7]Reverse Integer

Reverse a integer is a very common task we need to understand for being a good programmer. It is ver ...