Given a string, find the length of the longest substring without repeating characters.Examples:Given "abc
Given a string, find the length of the longest substring without repeating characters.
Examples:
Given "abcabcbb", the answer is "abc", which the length is 3.
Given "bbbbb", the answer is "b", with the length of 1.
Given "pwwkew", the answer is "wke", with the length of 3. Note that the answer must be a substring, "pwke" is a subsequence and not a substring.
另附网上的答案一则.
Http://www.cnblogs.com/grandyang/p/4480780.html
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本文标题: Longest Substring Without Repeating Characters
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