摘要:
Given a 2D board and a list of words from the dictionary, find all words in the board. Each word must be constructed from letters of sequentially adja 阅读全文
摘要:
Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endp 阅读全文
摘要:
Given two integers dividend and divisor, divide two integers without using multiplication, division and mod operator. Return the quotient after dividi 阅读全文