题目Given an array A of positive integers, call a (contiguous, not necessa...

找所有 local maximum，array 满足两个条件|a[i] - a[i-1]| = 1 The local maxima are s...

题目The n-queens puzzle is the problem of placing n queens on an n×n chess...

题目This question is about implementing a basic elimination algorithm for ...

题目You are playing the following Flip Game with your friend: Given a stri...

题目You are playing the following Flip Game with your friend: Given a stri...

题目Given two integers representing the numerator and denominator of a fra...

题目In a row of seats, 1 represents a person sitting in that seat, and 0 r...

题目略 答案这个答案Leetcode TLE了，但是面试里面可以说。