Why do companies ask algorithm questions?

All the top-notch companies ask questions related to data structures and algorithms to check candidate’s problem-solving abilities.

What to do if you cant answer a coding question interview?

1. Ask for Clarification. This is one of the first things you should do in your interview, regardless of whether or not you completely understand the problem.
2. Explain Your Thought Process. After you ask your clarifying question at the beginning, the next step is not coding — it is explaining.
3. Identify Pain Points.
4. TLDR.

What are the top 10 Algorithms in interview questions?

Top 10 algorithms in Interview Questions 1 Modular Exponentiation 2 Modular multiplicative inverse 3 Primality Test | Set 2 (Fermat Method) 4 Euler’s Totient Function 5 Sieve of Eratosthenes 6 Convex Hull 7 Basic and Extended Euclidean algorithms 8 Segmented Sieve 9 Chinese remainder theorem 10 Lucas Theorem More

What are the reasons to use an algorithm?

Some reasons to use an algorithm are as follows. The algorithm improves the efficiency of an existing technique. To compare the performance of the algorithm with respect to other techniques. The algorithm gives a strong description of requirements and goal of the problems to the designer.

How do you write a string in algorithm?

Algorithm Interview Questions and Answers. 1 Step1: start. 2 Step2: Take two variable i and j. 3 Step3: do length (string)-1, to set J at last position. 4 Step4: do string [0], to set i on the first character. 5 Step5: string [i] is interchanged with string [j]

What are the top 10 coding problems of important topics?

In this post “Top 10 coding problems of important topics with their solutions ” are written. If you are preparing for a coding interview, going through these problems is a must. 1. Graph 2. Linked List 3. Dynamic Programming 4. Sorting And Searching 5. Tree / Binary Search Tree 6. Number Theory 7. BIT Manipulation 8.