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 @ 2015-06-04 18:55 linqiaozhou 阅读(223) 评论(0) 推荐(0)
摘要: There are N gas stations along a circular route, where the amount of gas at station i is gas[i]. You have a car with an unlimited gas tank and it cost 阅读全文
posted @ 2015-06-04 15:16 linqiaozhou 阅读(541) 评论(0) 推荐(0)