[interviewDojo] #6: Linked Lists Boot Camp

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 referred to as tail.
If a list have nodes that contains only a reference to the next node it’s a singly linked list. A doubly linked list has nodes that have a reference to the next node and a reference to the previous node.

Linked lists come up often in coding interviews and are often compared to arrays.

Take time today to review the differences between linked lists and arrays and what are the common operations on lists in our Boot Camp

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] #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

[interviewDojo] #1: Sorting Boot camp

Thursday, April 9, 2020

Hi! Today we discuss why sorting is important for algorithmic problem solving and we review the most important sorting algorithms. In the following days we will learn how to apply these techniques to

[interviewDojo] #2: Merge K sorted array, size N each

Thursday, April 9, 2020

Hi, Today we solve a classic sorting problem that is full of great patterns and ideas (super useful to solve interview problems). Problem Given K sorted arrays, write an algorithm that merges these

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