129 - Daily Interview Problem: Decode String - decode-string.txt.txt

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

Given a string with a certain rule: k[string] should be expanded to string k times. So for example, 3[abc] should be expanded to abcabcabc. Nested expansions can happen, so 2[a2[b]c] should be expanded to abbcabbc.

Your starting point:
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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 | 78025 Views, 26406 Search Bots | 67 Words

130 - Daily Interview Problem: Full Binary Tree - full-binary-tree.txt

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

Given a binary tree, remove the nodes in which there is only 1 child, so that the binary tree is a full binary tree.

So leaf nodes with no children should be kept, and nodes with 2 children should be kept as well.
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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 | 80026 Views, 27779 Search Bots | 171 Words

131 - Daily Interview Problem: Min Stack - min-stack.txt

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

Design a simple stack that supports push, pop, top, and retrieving the minimum element in constant time.

push(x) -- Push element x onto stack.
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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 | 79477 Views, 25977 Search Bots | 137 Words

132 - Daily Interview Problem: Reverse Integer - reverse-integer.txt

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

Write a function that reverses the digits a 32-bit signed integer, x. Assume that the environment can only store integers within the 32-bit signed integer range, [-2^31, 2^31 - 1]. The function returns 0 when the reversed integer overflows.

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 | 79380 Views, 25332 Search Bots | 70 Words

133 - Daily Interview Problem: Min Range Needed to Sort - min-range-needed-to-sort.txt

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

Given a list of integers, return the bounds of the minimum range that must be sorted so that the whole list would be sorted.

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 | 78163 Views, 26149 Search Bots | 70 Words

134 - Daily Interview Problem: Distribute Bonuses - distribute-bonuses.txt

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

You are the manager of a number of employees who all sit in a row. The CEO would like to give bonuses to all of your employees, but since the company did not perform so well this year the CEO would like to keep the bonuses to a minimum.

The rules of giving bonuses is that:
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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 | 77726 Views, 25070 Search Bots | 144 Words

135 - Daily Interview Problem: Tree Serialization - tree-serialization.txt

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

You are given the root of a binary tree. You need to implement 2 functions:

1. serialize(root) which serializes the tree into a string representation
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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 | 79326 Views, 28189 Search Bots | 171 Words

136 - Daily Interview Problem: Arithmetic Binary Tree - arithmetic-binary-tree.txt

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

You are given a binary tree representation of an arithmetic expression. In this tree, each leaf is an integer value,, and a non-leaf node is one of the four operations: '+', '-', '*', or '/'.

Write a function that takes this tree and evaluates the expression.
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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 | 79366 Views, 26866 Search Bots | 142 Words