---
id: 698dc4a27932b3cc4b19c920
title: Efficiency of an Algorithm
challengeType: 11
videoId: EHxx4yawPT0
dashedName: efficiency-of-an-algorithm
---

# --description--

In this video, you will learn how to measure the efficiency of an algorithm.

# --questions--

## --text--

What is Big O notation?

## --answers--

A notation used to calculate the memory address of variables in a program.

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The exact running time of a program measured in seconds.

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A method for debugging errors in large software systems.

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Theoretical definition of the complexity of an algorithm as a function of the size. 

## --video-solution--

4
