Problem set
Lists, loops, functions, sets, dicts and comprehensions.
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difficulty
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45 problems
track · title · topic · difficulty
- pythonSum of even numbersfor looplistseasy
- pythonUnique values, order preservedsetslistseasy
- pythonWord frequency counterdictsstringseasy
- pythonSet operationssetseasy
- pythonFlatten a nested listrecursionlistsmedium
- pythonGroup by key functionfunctionsdictsmedium
- pythonMoving averageloopsslicingmedium
- pythonNormalize a feature listfunctionsmathmedium
- pythonTop-k frequent itemsdictssortinghard
- pythonBatch an iterablegeneratorsloopshard
- pythonairbnbMaximum booking overlapintervalssortinghard
- pythonuberTop drivers by total faredictssortingmedium
- pythonstripeMRR growth rateloopsmathmedium
- pythonmetaFriend suggestions via mutualsdictssetsmedium
- pythonamazonWeighted product ratingfunctionsmathmedium
- pythonnetflixTop genres by watch minutesdictssortinghard
- pythonairbnbNightly price bucketsdictsconditionalseasy
- pythonstripeRetry schedule with backoffloopsmathmedium
- pythonmetaSession windows from timestampsloopslistsmedium
- pythonamazonWeighted review scoremathfunctionsmedium
- pythonnetflixTop-k recommendationssortingdictseasy
- pythongoogleNormalize and count queriesstringsdictsmedium
- pythonlinkedinDegrees of separationgraphsBFShard
- pythonsalesforceWeighted forecastdictsfunctionsmedium
- pythonrobinhoodMax drawdownloopsmathhard
- pythonappleValidate device serialsstringsvalidationeasy
- pythonappleSubscription renewal scheduledatesloopsmedium
- pythonappleRefund window checkerlogicdictsmedium
- pythonappleLongest daily usage streakdatesstreakshard
- pythonmicrosoftParse a meter linestringsparsingeasy
- pythonmicrosoftAlert severity escalationdictssortingmedium
- pythonmicrosoftMerge overlapping meeting blocksintervalssortinghard
- pythontiktokExtract hashtagsstringsparsingeasy
- pythontiktokFeed deduplicationlistssetsmedium
- pythontiktokTop k trending soundsheapscountinghard
- pythonopenaiEstimate token costarithmeticroundingeasy
- pythonopenaiSliding window rate limitersliding windowqueueshard
- pythonopenaiPrompt cache hit ratiodictsratiosmedium
- pythonsnowflakeWarehouse size orderingsortingdictseasy
- pythonsnowflakeAuto-suspend savingssimulationarithmeticmedium
- pythonsnowflakeDetect query gaps and islandsgaps and islandsintervalshard
- pythondatabricksParse a cluster specstringsdictseasy
- pythondatabricksRetry with exponential backoffloopssimulationmedium
- pythondatabricksTopological order of a pipelinegraphstopological sorthard
- pythondatabricksCompact small filesgreedybin packinghard