InterviewDojo - [interviewDojo] #9: Strings Boot Camp

Hi,

Today we discuss some basic concepts and operations on Strings. Interview problems on Strings are extremely common, and because strings can be considered arrays of characters the same patterns found in array problems can be used to design string algorithms.

Head over to the String Boot Camp article to start practicing on Strings.


Interview coming up? Get in touch if you need personal coaching to ace your interview or if you need to practice with mock interviews with experienced engineers who work at the Big 4 tech companies. 

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Older messages

[interviewDojo] #7: Find the middle element of a linked list

Friday, April 17, 2020

Hi, Finding the middle element of a linked list is a simple problem that can be solved in linear time with a single pass of the list. Problem Given a linked list, find the middle element. Example:

[interviewDojo] #6: Linked Lists Boot Camp

Thursday, April 16, 2020

Hi, A linked list is a data structure that contains a sequence of nodes such that each node contains a value and a pointer to the next node. The first node is referred to as head and the last node is

[interviewDojo] #5: Find balanced string with minimum insertions and deletions

Tuesday, April 14, 2020

Hi, Today's practice problem is on strings. Problem Given a string of parenthesis, if the parenthesis are not balanced, then return the balanced string than can be produced with the minimum number

[interviewDojo] #4: Check if a tree is a Binary Search Tree

Sunday, April 12, 2020

Hi, Today's problem is a fundamental algorithm to practice traversing tree data structures. Problem Given a binary tree, write an efficient algorithm to validate that the tree is a Binary Search

[interviewDojo] #3: Binary Trees Boot Camp

Friday, April 10, 2020

Hi, Binary Trees are extremely common in interview questions. Today we review the basics and implement the two most important traversal algorithms: DFS (Depth First Search) and BFS (Breadth First

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