amazingzoe - 博客园

2017年2月28日

摘要： Shuffle a set of numbers without duplicates. Example: 阅读全文

posted @ 2017-02-28 20:01 amazingzoe 阅读(116) 评论(0) 推荐(0)

摘要： Suppose you have N integers from 1 to N. We define a beautiful arrangement as an array that is constructed by these N numbers successfully if one of t 阅读全文

posted @ 2017-02-28 18:05 amazingzoe 阅读(329) 评论(0) 推荐(0)

MineSweeper

摘要： Let's play the minesweeper game (Wikipedia, online game)! You are given a 2D char matrix representing the game board. 'M' represents an unrevealed min 阅读全文

posted @ 2017-02-28 17:38 amazingzoe 阅读(278) 评论(0) 推荐(0)

2017年2月24日

Design Tic-Tac-Toe

摘要： Design a Tic-tac-toe game that is played between two players on a n x n grid. You may assume the following rules: Example: Follow up:Could you do bett 阅读全文

posted @ 2017-02-24 21:29 amazingzoe 阅读(156) 评论(0) 推荐(0)

Count Numbers with Unique Digits

摘要： Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example:Given n = 2, return 91. (The answer should be the 阅读全文

posted @ 2017-02-24 21:17 amazingzoe 阅读(150) 评论(0) 推荐(0)

Diagonal Traverse

摘要： Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix in diagonal order as shown in the below image. Example: Note: 阅读全文

posted @ 2017-02-24 20:01 amazingzoe 阅读(213) 评论(0) 推荐(0)

Add Two Numbers

摘要： You are given two non-empty linked lists representing two non-negative integers. The most significant digit comes first and each of their nodes contai 阅读全文

posted @ 2017-02-24 19:29 amazingzoe 阅读(163) 评论(0) 推荐(0)

Next Greater Element II

摘要： Given a circular array (the next element of the last element is the first element of the array), print the Next Greater Number for every element. The 阅读全文

posted @ 2017-02-24 19:09 amazingzoe 阅读(163) 评论(0) 推荐(0)

Magical String

摘要： A magical string S consists of only '1' and '2' and obeys the following rules: The string S is magical because concatenating the number of contiguous 阅读全文

posted @ 2017-02-24 18:19 amazingzoe 阅读(256) 评论(0) 推荐(0)

2017年2月19日

Linked List Random Node

摘要： Given a singly linked list, return a random node's value from the linked list. Each node must have the same probability of being chosen. Follow up:Wha 阅读全文

posted @ 2017-02-19 19:34 amazingzoe 阅读(141) 评论(0) 推荐(0)

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