Interviewers will always try to find new questions, or ones that are not available online.
Instead, you should use these questions to practice the fundamental concepts of linked lists.Īs you consider each question, try to replicate the conditions you’ll encounter in your interview. Begin by writing your own solution without external resources in a fixed amount of time. If you get stuck, go ahead and look at the solutions, but then try the next one alone again. Don’t get stuck in a loop of reading as many solutions as possible! We’ve analysed dozens of questions and selected ones that are commonly asked and have clear and high quality answers.
Here are some of the easiest questions you might get asked in a coding interview.
#Linked list stack java questions csci quiz code#
These questions are often asked during the "phone screen" stage, so you should be comfortable answering them without being able to write code or use a whiteboard.ġ.8 Convert binary number in a linked list to integerġ.11 Insert a node at the tail of a linked listġ.12 Insert a node at the head of a linked listġ.15 Inserting a node Into a sorted doubly linked listĢ. You should be prepared to write code or sketch out the solutions on a whiteboard if asked.Ģ.9 Remove duplicates from sorted list IIĢ.15 Flatten a multilevel doubly linked listĢ.19 Remove zero sum consecutive nodes from linked list Here are some moderate-level questions that are often asked in a video call or onsite interview. Similar to the medium section, these more difficult questions may be asked in an onsite or video call interview.
#Linked list stack java questions csci quiz full#
Video guide (Programming Live with Larry).You will likely be given more time if you are expected to create a full solution. In order to crack the questions above and others like them, you’ll need to have a strong understanding of linked lists and how they work. 4.1 What is a linked list?Ī linked list is a data structure used to store a collection of data elements. However, unlike an array, the data elements in a linked list do not need to be stored contiguously in memory. Rather, each node in a linked list has a pointer or reference to the memory location of the next node in the list. This means that linked lists do not have a fixed size like arrays, and can easily grow and shrink as elements are added or removed.Īnother advantage linked lists have over arrays is that inserting or removing elements from a linked list is possible in constant time, whereas removing or inserting elements into an array generally takes linear time. Since the data elements are not stored sequentially in contiguous memory, linked lists are not as efficient as arrays at random access of elements. Indexes are commonly used to access any element in an array in constant time.
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