摘要：
The size of the hash table is not determinate at the very beginning. If the total size of keys is too large (e.g. size >= capacity / 10), we should do 阅读全文
摘要：
Implement function atoi to convert a string to an integer. If no valid conversion could be performed, a zero value is returned. If the correct value i 阅读全文
摘要：
Calculate the a^n % b where a, b and n are all 32bit integers. Calculate the a^n % b where a, b and n are all 32bit integers. Calculate the a^n % b wh 阅读全文
摘要：
Check Power of 2 Using O(1) time to check whether an integer n is a power of 2. Check Power of 2 Using O(1) time to check whether an integer n is a po 阅读全文
摘要：
Regular Expression Matching Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or 阅读全文