2015年9月3日
Word Ladder**
摘要： Given two words (beginWordandendWord), and a dictionary, find the length of shortest transformation sequence frombeginWordtoendWord, such that:Only on... 阅读全文
posted @ 2015-09-03 13:03 amazingzoe 阅读(123) 评论(0) 推荐(0)
Minimum Size Subarray Sum
摘要： Given an array ofnpositive integers and a positive integers, find the minimal length of a subarray of which the sum ≥s. If there isn't one, return 0 i... 阅读全文
posted @ 2015-09-03 03:46 amazingzoe 阅读(102) 评论(0) 推荐(0)
Longest Substrings Without Repeating Characters
摘要： Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters fo... 阅读全文
posted @ 2015-09-03 01:34 amazingzoe 阅读(136) 评论(0) 推荐(0)