89 - 每日算法题: Sort a Partially Sorted List - sort-a-partially-sorted-list.txt

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

You are given a list of n numbers, where every number is at most k indexes away from its properly sorted index. Write a sorting algorithm (that will be given the number k) for this list that can solve this in O(n log k)

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 | 66887 次阅读, 33124 次搜索 | 93 个单词

90 - 每日算法题: Most Frequent Subtree Sum - most-frequent-subtree-sum.txt

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

Given a binary tree, find the most frequent subtree sum.

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 | 68978 次阅读, 33468 次搜索 | 147 个单词

91 - 每日算法题: Fix Brackets - fix-brackets.txt

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

Given a string with only ( and ), find the minimum number of characters to add or subtract to fix the string such that the brackets are balanced.

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 | 70680 次阅读, 30486 次搜索 | 99 个单词

92 - 每日算法题: Palindrome Integers - palindrome-integers.txt

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

Given an integer, check if that integer is a palindrome. For this problem do not convert the integer to a string to check if it is a palindrome.

import math
...
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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 | 68785 次阅读, 31883 次搜索 | 57 个单词

93 - 每日算法题: Print a tree level-by-level, with line-breaks - print-a-tree-level-by-level,-with-line-breaks.txt

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

You are given a tree, and your job is to print it level-by-level with linebreaks.

a
...
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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 | 67630 次阅读, 49365 次搜索 | 111 个单词

94 - 每日算法题: Spreadsheet Columns - spreadsheet-columns.txt

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

In many spreadsheet applications, the columns are marked with letters. From the 1st to the 26th column the letters are A to Z. Then starting from the 27th column it uses AA, AB, ..., ZZ, AAA, etc.

Given a number n, find the n-th column name.
...
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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 | 71101 次阅读, 34772 次搜索 | 80 个单词

95 - 每日算法题: Generate All IP Addresses - generate-all-ip-addresses.txt

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

An IP Address is in the format of A.B.C.D, where A, B, C, D are all integers between 0 to 255.

Given a string of numbers, return the possible IP addresses you can make with that string by splitting into 4 parts of A, B, C, D.
...
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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 | 67599 次阅读, 32598 次搜索 | 99 个单词

96 - 每日算法题: Consecutive Ones - consecutive-ones.txt

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

Return the longest run of 1s for a given integer n's binary representation.

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 | 67905 次阅读, 28742 次搜索 | 52 个单词

97 - 每日算法题: Spreadsheet Column Title - spreadsheet-column-title.txt.txt

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

MS Excel column titles have the following pattern: A, B, C, ..., Z, AA, AB, ..., AZ, BA, BB, ..., ZZ, AAA, AAB, ... etc. In other words, column 1 is named "A", column 2 is "B", column 26 is "Z", column 27 is "AA" and so forth. Given a positive integer, find its corresponding column name.
Examples:
Input: 26
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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 | 67406 次阅读, 34031 次搜索 | 116 个单词

98 - 每日算法题: Compare Version Numbers - compare-version-numbers.txt

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

Version numbers are strings that are used to identify unique states of software products. A version number is in the format a.b.c.d. and so on where a, b, etc. are numeric strings separated by dots. These generally represent a hierarchy from major to minor changes. Given two version numbers version1 and version2, conclude which is the latest version number. Your code should do the following:
If version1 > version2 return 1.
If version1 < version2 return -1.
...
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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 | 67386 次阅读, 30314 次搜索 | 192 个单词

99 - 每日算法题: Reverse a Directed Graph - reverse-a-directed-graph.txt

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

Given a directed graph, reverse the directed graph so all directed edges are reversed.

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 | 69425 次阅读, 31700 次搜索 | 115 个单词