摘要：题目： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra spac 阅读全文

摘要：题目： Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. Follow up: Did you use extra space? A straight forwa 阅读全文

摘要：题目： Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted i 阅读全文