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Follow up for "Remove Duplicates":What if duplicates are allowed at most twice? For example,Given sorted array nums = [1,1,1,2,2,3], Your function sho 阅读全文
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Given a non-empty array of numbers, a0, a1, a2, … , an-1, where 0 ≤ ai < 231. Find the maximum result of ai XOR aj, where 0 ≤ i, j < n. Could you do t 阅读全文
摘要：
A character in UTF8 can be from 1 to 4 bytes long, subjected to the following rules: This is how the UTF-8 encoding would work: Given an array of inte 阅读全文