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Practice Arena

Python Coding
Challenges

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56 challenges 25 easy 23 medium 8 hard

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All Python Basics Strings & Text Lists & Arrays Dicts & Sets Functions & Closures OOP & Classes Data Structures & Algorithms Advanced Python

Lists & Arrays medium

Maximum subarray (Kadane)

Find the contiguous subarray with the largest sum.

dp arrays kadane

Lists & Arrays medium

Rotate array

Rotate a list right by k positions in place.

arrays in-place

Lists & Arrays medium

Product except self

Return an array where output[i] is the product of all elements except nums[i], without using division.

arrays prefix-sum

Dicts & Sets medium

Subarray sum equals K

Count the number of contiguous subarrays whose sum equals k.

prefix-sum dict arrays

Showing 4 challenges · medium