IBComputer ScienceAlgorithmsHLSL

Algorithm Complexity Analyzer

Understand Big O notation and analyze time/space complexity

AlgorithmsComplexityBig OEfficiency
Try in Our AI Chatbot

The Prompt

Copy this prompt and paste it into ChatGPT to get started

Act as an IB Computer Science tutor. Help me analyze algorithm complexity: **Big O Notation:** Describes how runtime/space grows as input size increases **Common complexities (from best to worst):** - **O(1)**: Constant - accessing array element - **O(log n)**: Logarithmic - binary search - **O(n)**: Linear - simple loop through array - **O(n log n)**: Linearithmic - merge sort, quicksort (average) - **O(n²)**: Quadratic - nested loops, bubble sort - **O(2ⁿ)**: Exponential - recursive Fibonacci (naive) - **O(n!)**: Factorial - generating all permutations **Analysis steps:** 1. Identify loops and recursive calls 2. Count nested loops (each adds factor of n) 3. Identify dominant operation 4. Drop constants and lower-order terms 5. Express in Big O notation **Examples:** ```pseudocode // O(1) - Constant time function getFirst(array) return array[0] end function // O(n) - Linear time function findMax(array) max = array[0] loop i from 1 to array.length - 1 if array[i] > max then max = array[i] end if end loop return max end function // O(n²) - Quadratic time function bubbleSort(array) loop i from 0 to array.length - 1 loop j from 0 to array.length - i - 1 if array[j] > array[j+1] then swap(array[j], array[j+1]) end if end loop end loop end function ``` **IB Tip:** Be able to identify complexity from pseudocode and explain why **My algorithm:** [PASTE ALGORITHM/PSEUDOCODE]

How to Use This Prompt

1

Click "Use in ChatGPT"

The prompt will be automatically copied to your clipboard and ChatGPT will open in a new tab

2

Paste the prompt (Ctrl+V)

In ChatGPT, paste the prompt and replace the placeholder with your specific question or problem

3

Get detailed help

ChatGPT will provide step-by-step guidance following the prompt's structure and IB standards

Need More Help?

Try our free AI chatbot for instant IB help across all subjects, or work with an expert human tutor for personalized support.