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46 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 346 Views, 22332 Search Bots | 57 Words
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
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 346 Views, 22332 Search Bots | 57 Words
47 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 398 Views, 23471 Search Bots | 111 Words
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
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 398 Views, 23471 Search Bots | 111 Words
48 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 3337 Views, 24030 Search Bots | 80 Words
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.
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 3337 Views, 24030 Search Bots | 80 Words
49 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 276 Views, 22025 Search Bots | 99 Words
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.
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 276 Views, 22025 Search Bots | 99 Words
50 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 431 Views, 19819 Search Bots | 52 Words
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:
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 431 Views, 19819 Search Bots | 52 Words
51 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 277 Views, 22497 Search Bots | 116 Words
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
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 277 Views, 22497 Search Bots | 116 Words
52 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 304 Views, 20907 Search Bots | 192 Words
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.
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 304 Views, 20907 Search Bots | 192 Words
53 - 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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 332 Views, 21407 Search Bots | 115 Words
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 | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 332 Views, 21407 Search Bots | 115 Words
54 - Absolute Path - absolute-path.txt
Hi, here's your problem today. This problem was recently asked by Facebook:
Given a file path with folder names, '..' (Parent directory), and '.' (Current directory), return the shortest possible file path (Eliminate all the '..' and '.').
Example
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 687 Views, 21186 Search Bots | 78 Words
Hi, here's your problem today. This problem was recently asked by Facebook:
Given a file path with folder names, '..' (Parent directory), and '.' (Current directory), return the shortest possible file path (Eliminate all the '..' and '.').
Example
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 687 Views, 21186 Search Bots | 78 Words
55 - Design Tic-Tac-Toe - design-tic-tac-toe.txt
Hi, here's your problem today. This problem was recently asked by Google:
Design a Tic-Tac-Toe game played between two players on an n x n grid. A move is guaranteed to be valid, and a valid move is one placed on an empty block in the grid. A player who succeeds in placing n of their marks in a horizontal, diagonal, or vertical row wins the game. Once a winning condition is reached, the game ends and no more moves are allowed. Below is an example game which ends in a winning condition:
Given n = 3, assume that player 1 is "X" and player 2 is "O"
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 401 Views, 18908 Search Bots | 261 Words
Hi, here's your problem today. This problem was recently asked by Google:
Design a Tic-Tac-Toe game played between two players on an n x n grid. A move is guaranteed to be valid, and a valid move is one placed on an empty block in the grid. A player who succeeds in placing n of their marks in a horizontal, diagonal, or vertical row wins the game. Once a winning condition is reached, the game ends and no more moves are allowed. Below is an example game which ends in a winning condition:
Given n = 3, assume that player 1 is "X" and player 2 is "O"
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 401 Views, 18908 Search Bots | 261 Words
56 - Top K Frequent words - top-k-frequent-words.txt
Hi, here's your problem today. This problem was recently asked by AirBNB:
Given a non-empty list of words, return the k most frequent words. The output should be sorted from highest to lowest frequency, and if two words have the same frequency, the word with lower alphabetical order comes first. Input will contain only lower-case letters.
Example:
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 310 Views, 19090 Search Bots | 102 Words
Hi, here's your problem today. This problem was recently asked by AirBNB:
Given a non-empty list of words, return the k most frequent words. The output should be sorted from highest to lowest frequency, and if two words have the same frequency, the word with lower alphabetical order comes first. Input will contain only lower-case letters.
Example:
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 310 Views, 19090 Search Bots | 102 Words
57 - Detect Linked List Cycle - detect-linked-list-cycle.txt
Hi, here's your problem today. This problem was recently asked by Uber:
Given a linked list, determine if the linked list has a cycle in it. For notation purposes, we use an integer pos which represents the zero-indexed position where the tail connects to.
Example:
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 256 Views, 21337 Search Bots | 120 Words
Hi, here's your problem today. This problem was recently asked by Uber:
Given a linked list, determine if the linked list has a cycle in it. For notation purposes, we use an integer pos which represents the zero-indexed position where the tail connects to.
Example:
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 256 Views, 21337 Search Bots | 120 Words
58 - Plus One - plus-one.txt
Hi, here's your problem today. This problem was recently asked by LinkedIn:
Given a non-empty array where each element represents a digit of a non-negative integer, add one to the integer. The most significant digit is at the front of the array and each element in the array contains only one digit. Furthermore, the integer does not have leading zeros, except in the case of the number '0'.
Example:
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 1122 Views, 19854 Search Bots | 90 Words
Hi, here's your problem today. This problem was recently asked by LinkedIn:
Given a non-empty array where each element represents a digit of a non-negative integer, add one to the integer. The most significant digit is at the front of the array and each element in the array contains only one digit. Furthermore, the integer does not have leading zeros, except in the case of the number '0'.
Example:
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 1122 Views, 19854 Search Bots | 90 Words
59 - Find Missing Numbers in an Array - find-missing-numbers-in-an-array.txt
Hi, here's your problem today. This problem was recently asked by Twitter:
Given an array of integers of size n, where all elements are between 1 and n inclusive, find all of the elements of [1, n] that do not appear in the array. Some numbers may appear more than once.
Example:
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 219 Views, 19817 Search Bots | 84 Words
Hi, here's your problem today. This problem was recently asked by Twitter:
Given an array of integers of size n, where all elements are between 1 and n inclusive, find all of the elements of [1, n] that do not appear in the array. Some numbers may appear more than once.
Example:
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 219 Views, 19817 Search Bots | 84 Words
60 - Binary Tree Level with Minimum Sum - binary-tree-level-with-minimum-sum.txt
Hi, here's your problem today. This problem was recently asked by Twitter:
You are given the root of a binary tree. Find the level for the binary tree with the minimum sum, and return that value.
For instance, in the example below, the sums of the trees are 10, 2 + 8 = 10, and 4 + 1 + 2 = 7. So, the answer here should be 7.
...
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Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 215 Views, 20901 Search Bots | 111 Words
Hi, here's your problem today. This problem was recently asked by Twitter:
You are given the root of a binary tree. Find the level for the binary tree with the minimum sum, and return that value.
For instance, in the example below, the sums of the trees are 10, 2 + 8 = 10, and 4 + 1 + 2 = 7. So, the answer here should be 7.
...
Full Text>>
Top | Category: Computing | Comments (0) | Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Interview Problem, Data Structures and Algorithms, Computer Programming, Python, | English | 215 Views, 20901 Search Bots | 111 Words
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