# Top Algorithms Interview Questions

Mobiprep handbooks are free downloadable placement preparation resources that can help you ace any company placement process. We have curated a list of the 40 most important MCQ questions which are asked in most companies such as Infosys, TCS, Wipro, Accenture, etc. The placement handbooks also have detailed explanations for every question ensuring you revise all the questions with detailed answers and explanations.

Question

1

Explanation

What is an algorithm?

An algorithm is a sequence of computational steps that converts input into the output. It is a finite set of rules or a procedure to solve a problem.

Question

2

Explanation

What is time complexity?

Time complexity is a procedure to measure the efficiency of an algorithm.

It is the time needed by an algorithm expressed as a function of the size of a problem is.

The time complexity of a program is the amount of computer time it needs to run to completion.

Question

3

Explanation

What is worst-case efficiency?

The worst-case efficiency of an algorithm is its efficiency for the worst-case input of size n, which is an input or inputs of size n for which the algorithm runs the longest among all possible inputs of that size.

Question

4

Explanation

What is worst-case efficiency?

The worst-case efficiency of an algorithm is its efficiency for the worst-case input of size n, which is an input or inputs of size n for which the algorithm runs the longest among all possible inputs of that size.