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Graphs and treesLevel 3Open topic
Widest path capacityHardWrite codeWrite codeHard30 minCurrency arbitrage detectionHardWrite codeCitadel styleWrite codeCitadel styleHard35 minSliding puzzle solverHardWrite codeGoogle styleWrite codeGoogle styleHard35 minEquation division queriesHardWrite codeGoogle styleWrite codeGoogle styleHard35 minCollect all keys in gridHardWrite codeGoogle styleWrite codeGoogle styleHard40 minMinimum refueling stopsHardWrite codeGoogle styleWrite codeGoogle styleHard30 minShortest path through a maze with free portalsHardWrite codeWrite codeHard35 minLexicographically smallest itineraryHardWrite codeGoogle styleWrite codeGoogle styleHard35 minMinimum obstacle removalHardWrite codeGoogle styleWrite codeGoogle styleHard30 minMinimum buses to destinationHardWrite codeGoogle styleWrite codeGoogle styleHard35 minWater supply network costHardWrite codeWrite codeHard35 minJob scheduling maximum profitHardWrite codeWrite codeHard35 min
2D Fenwick treeHardWrite codeCitadel styleWrite codeCitadel styleHard40 minMaximum XOR with trieHardWrite codeGoogle styleWrite codeGoogle styleHard35 minMorris inorder traversalHardWrite codeGoogle styleWrite codeGoogle styleHard35 minRange count with thresholdHardWrite codeCitadel styleWrite codeCitadel styleHard40 minSocial feedHardWrite codeMeta styleWrite codeMeta styleHard40 minFind every listed word on a letter boardHardWrite codeAmazon styleWrite codeAmazon styleHard35 minWalks of length kHardWrite codeCitadel styleWrite codeCitadel styleHard35 minSpreadsheet formula evaluatorHardWrite codeFigma styleWrite codeFigma styleHard45 min2-SAT satisfiabilityHardWrite codeCitadel styleWrite codeCitadel styleHard40 minMinimum cost assignmentHardWrite codeUber styleWrite codeUber styleHard40 minMinimum vertex coverHardWrite codeCitadel styleWrite codeCitadel styleHard35 minMake graph strongly connectedHardWrite codeCitadel styleWrite codeCitadel styleHard40 minLexicographically smallest Eulerian circuitHardWrite codeWrite codeHard40 minMax flow networkHardWrite codeWrite codeHard45 minMaximum flow minimum costHardWrite codeWrite codeHard45 minSecond shortest pathHardWrite codeWrite codeHard40 minMinimum cost fulfillmentHardWrite codeAmazon styleWrite codeAmazon styleHard40 minFeasible circulationHardWrite codeWrite codeHard50 minAll-pairs shortest paths DAGHardWrite codeWrite codeHard45 min2-SAT forced variablesHardWrite codeWrite codeHard45 minRobot fuel-constrained pathHardWrite codeWrite codeHard35 minGrid shortest path with portalsHardWrite codeWrite codeHard35 minConnectivity after edge removalsHardWrite codeWrite codeHard35 minConveyor belt robot pathHardWrite codeAmazon styleWrite codeAmazon styleHard40 minTraffic signal shortest arrivalHardWrite codeUber styleWrite codeUber styleHard40 minAutocomplete top 3HardWrite codeGoogle styleWrite codeGoogle styleHard30 minSegment tree range assignHardWrite codeWrite codeHard40 minMinimum debt transactionsHardWrite codeStripe styleWrite codeStripe styleHard40 minStream suffix word matcherHardWrite codeWrite codeHard35 minProject profit maximizationHardWrite codeWrite codeHard40 minTeam elimination checkHardWrite codeWrite codeHard40 minBoolean satisfiabilityHardWrite codeWrite codeHard40 minLexicographically smallest Eulerian pathHardWrite codeWrite codeHard40 minGlobal minimum cutHardWrite codeWrite codeHard45 minMinimum cost flowHardWrite codeWrite codeHard45 minCount articulation pointsHardWrite codeWrite codeHard35 minMaximum independent setHardWrite codeWrite codeHard35 minK-th shortest walkHardWrite codeWrite codeHard35 min