91 - 每日算法题 Course Prerequisites - course.txt

Hi, here's your problem today. This problem was recently asked by Google:

By the way, check out our NEW project AlgoPro (http://algopro.com) for over 60+ video coding sessions with ex-Google/ex-Facebook engineers.

You are given a hash table where the key is a course code, and the value is a list of all the course codes that are prerequisites for the key. Return a valid ordering in which we can complete the courses. If no such ordering exists, return NULL.
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 1476 次阅读, 15418 次搜索 | 159 个单词

92 - 每日算法题 Witness of The Tall People - witness.txt

Hi, here's your problem today. This problem was recently asked by Google:

There are n people lined up, and each have a height represented as an integer. A murder has happened right in front of them, and only people who are taller than everyone in front of them are able to see what has happened. How many witnesses are there?

Example:
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Top | 类别: 计算机科学 | 评论 (1) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 1951 次阅读, 20667 次搜索 | 94 个单词

93 - 每日算法题 Remove Consecutive Nodes that Sum to 0 - Remove-Consecutive-Nodes-that-Sum-to-0.txt

Hi, here's your problem today. This problem was recently asked by Uber:

Given a linked list of integers, remove all consecutive nodes that sum up to 0.

Example:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | 英文 | 220 次阅读, 20621 次搜索 | 146 个单词

94 - 每日面试算法题: Falling Dominoes - falling-dominoes.txt

Hi, here's your problem today. This problem was recently asked by Twitter:

Given a string with the initial condition of dominoes, where:

. represents that the domino is standing still
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 488 次阅读, 15433 次搜索 | 117 个单词

95 - 每日面试算法题: Intersection of Linked Lists - intersection-of-linked-lists.txt

Hi, here's your problem today. This problem was recently asked by Apple:

You are given two singly linked lists. The lists intersect at some node. Find, and return the node. Note: the lists are non-cyclical.

Example:
...
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 225 次阅读, 17850 次搜索 | 136 个单词

96 - 每日面试算法题: Ways to Traverse a Grid - ways-to-traverse-a-grid.txt

Hi, here's your problem today. This problem was recently asked by Microsoft:

You 2 integers n and m representing an n by m grid, determine the number of ways you can get from the top-left to the bottom-right of the matrix y going only right or down.

Example:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 343 次阅读, 17012 次搜索 | 80 个单词

97 - 每日面试算法题: Minimum Size Subarray Sum - minimum-size-subarray-sum.txt

Hi, here's your problem today. This problem was recently asked by Amazon:

Given an array of n positive integers and a positive integer s, find the minimal length of a contiguous subarray of which the sum ≥ s. If there isn't one, return 0 instead.

Example:
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98 - 每日算法题 - Word Search - word-search.txt

Hi, here's your problem today. This problem was recently asked by Amazon:

You are given a 2D array of characters, and a target string. Return whether or not the word target word exists in the matrix. Unlike a standard word search, the word must be either going left-to-right, or top-to-bottom in the matrix.

Example:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 846 次阅读, 15576 次搜索 | 136 个单词

99 - 每日算法题 - Find Cycles in a Graph - find-cycles-in-a-graph.txt

Hi, here's your problem today. This problem was recently asked by Facebook:

Given an undirected graph, determine if a cycle exists in the graph.

Here is a function signature:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 391 次阅读, 20556 次搜索 | 72 个单词

100 - 每日算法题 - Longest Sequence with Two Unique Numbers - longest-sequence-with-two-unique-numbers.txt

Hi, here's your problem today. This problem was recently asked by Facebook:

Given a sequence of numbers, find the longest sequence that contains only 2 unique numbers.

Example:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 300 次阅读, 16979 次搜索 | 54 个单词

101 - 每日算法题 - Create a Simple Calculator - create-a-simple-calculator.txt

Hi, here's your problem today. This problem was recently asked by Google:

Given a mathematical expression with just single digits, plus signs, negative signs, and brackets, evaluate the expression. Assume the expression is properly formed.

Example:
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, | 英文 | 332 次阅读, 20089 次搜索 | 61 个单词

102 - Windows 10下注册32位OCX控件的方法 - how-to-register-32-bit-ocx-component-under-windows-10.txt

Windows 10下注册32位OCX控件的方法

　对于早期的32位Windows操作系统，我们可以直接注册OCX或DLL控件，但是在64位系统下是不可行的，而对于支持UAC（例如Windows 10等）的系统，就必须要复制到指定的目录，并使用管理员权限才能成功注册。

　　对于64位Windows 10操作系统，具体方法是：
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 注册OCX, 32位OCX/DLL控件, Windows 10, 32 bit OCX, DLL, Windows 10, Register OCX, | 中文 | 269 次阅读, 33016 次搜索 | 189 个汉字

103 - 每日算法题 - Edit Distance I - edit-distance.txt

Hi, here's your problem today. This problem was recently asked by AirBNB:

Given two strings, determine the edit distance between them. The edit distance is defined as the minimum number of edits (insertion, deletion, or substitution) needed to change one string to the other.

For example, "biting" and "sitting" have an edit distance of 2 (substitute b for s, and insert a t).
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104 - 每日算法题 - Find Pythagorean Triplets - find-pythagorean-triplets.txt

Hi, here's your problem today. This problem was recently asked by Uber:

Given a list of numbers, find if there exists a pythagorean triplet in that list. A pythagorean triplet is 3 variables a, b, c where a^2 + b^2 = c^2

Example:
...
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | 英文 | 315 次阅读, 17309 次搜索 | 57 个单词

105 - 每日算法题 - Number of Ways to Climb Stairs - number-of-ways-to-climb-stairs.txt

Hi, here's your problem today. This problem was recently asked by LinkedIn:

You are given a positive integer N which represents the number of steps in a staircase. You can either climb 1 or 2 steps at a time. Write a function that returns the number of unique ways to climb the stairs.

...
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Top | 类别: 计算机科学 | 评论 (0) | 标签: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms,  | 英文 | 297 次阅读, 19089 次搜索 | 74 个单词