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Big O Complexity Analyzer
Paste your code and get instant time and space complexity analysis. Perfect for interview prep and algorithm optimization.
Paste your code and click analyze to see complexity breakdown
Big O Complexity Reference
O(1)
Constant
Array access, hash lookup
O(log n)
Logarithmic
Binary search
O(n)
Linear
Single loop, linear search
O(n log n)
Linearithmic
Merge sort, heap sort
O(n²)
Quadratic
Nested loops, bubble sort
O(2ⁿ)
Exponential
Recursive fibonacci, subsets
O(n!)
Factorial
Permutations, traveling salesman
Master Algorithm Complexity
Practice coding problems with instant feedback on your solutions. Our AI evaluates your code complexity and suggests optimizations.