Problems

Practice coding problems

Build problem-solving habits with topic filters, difficulty levels, visible examples, and an online code workspace.

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Choose a Python Foundations, coding practice, or PCEP review path and work through problems in order.

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All topicsArraysConditionalsDictionariesDynamic ProgrammingFunctionsGraphsGreedyHashmapInput/OutputListsLoopsPrefix SumsSimulationSortingStringsVariables

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BeginnerLists

Badge List

Each student has earned practice badges. Given badge counts, print the largest count.

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IntermediateLists

Bus Route Check

Given a list of route stop names and a school name, print `YES` if the school appears in the route and `NO` otherwise.

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