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 should return length = 5, with the first five elements of nums being 1, 1, 2, 2 and 3. It doesn't matter what you leave beyond the new length.【阅读全文】
Moving from Java to C++This appendix explains how to transfer your Java programming skills to a substantial subset of C++. This is necessary for students who take their first programming course in Java and the second course in C++. Naturally, it would be easiest if the second...【阅读全文】