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Dynamic programmingLevel 4Open topic
Ledge climb sequencesEasyWrite codeWrite codeEasy10 minMinimum toll checkpoint costEasyWrite codeWrite codeEasy10 minMaximum subarray sumEasyWrite codeAmazon styleWrite codeAmazon styleEasy10 minFind the smallest sum of any subarrayEasyWrite codeWrite codeEasy10 minPath paving waysEasyWrite codeWrite codeEasy12 minCheck whether a hiker can reach the last markerEasyWrite codeAmazon styleWrite codeAmazon styleEasy10 minSum of twos and threesEasyWrite codeWrite codeEasy12 minMaximum elevation dropEasyWrite codeAmazon styleWrite codeAmazon styleEasy10 minLongest passing streakEasyWrite codeWrite codeEasy10 minCount set bitsEasyWrite codeWrite codeEasy15 minFlight menu combinationsEasyWrite codeWrite codeEasy14 minSupport roster rotationsEasyWrite codeWrite codeEasy16 min
Newsletter page layoutsEasyWrite codeWrite codeEasy15 minComment thread depthEasyWrite codeWrite codeEasy15 minBalance scale weightsEasyWrite codeWrite codeEasy15 minDelete and earnMediumWrite codeWrite codeMedium20 minDelete for equal stringsMediumWrite codeWrite codeMedium25 minSmallest stone after smashingMediumWrite codeWrite codeMedium25 minPartition array sum with signsMediumWrite codeWrite codeMedium25 minOnes and zeroesMediumWrite codeWrite codeMedium25 minCount all-ones square submatricesMediumWrite codeWrite codeMedium20 minLargest square of onesMediumWrite codeWrite codeMedium20 minPaths in grid with obstaclesMediumWrite codeWrite codeMedium20 minDigit combinations with sumMediumWrite codeWrite codeMedium20 minPhone keypad lettersMediumWrite codeAmazon styleWrite codeAmazon styleMedium18 minCombination sumMediumWrite codeWrite codeMedium22 minStaircase climb waysMediumWrite codeWrite codeMedium18 minPartition minimum differenceMediumWrite codeWrite codeMedium25 minStaircase paths avoiding broken stepsMediumWrite codeWrite codeMedium12 minMaximum non-consecutive stall scoresMediumWrite codeWrite codeMedium12 minDrum pattern rollsMediumWrite codeWrite codeMedium14 minDeposit combinationsMediumWrite codeGoogle styleWrite codeGoogle styleMedium15 minEdit distanceMediumWrite codeGoogle styleWrite codeGoogle styleMedium25 minFinishing combo sequencesMediumWrite codeWrite codeMedium14 minGrowth scoreMediumWrite codeGoogle styleWrite codeGoogle styleMedium16 minBillboard revenueMediumWrite codeGoogle styleWrite codeGoogle styleMedium14 minHopscotch minimum costMediumWrite codeWrite codeMedium14 minAdjacent flag configurationsMediumWrite codeWrite codeMedium12 minGarden watering scheduleMediumWrite codeWrite codeMedium15 minStaircase no double stepsMediumWrite codeWrite codeMedium14 minOne edit apartMediumWrite codeMeta styleWrite codeMeta styleMedium20 minCounter operation sequencesMediumWrite codeWrite codeMedium14 minMinimum box packingMediumWrite codeGoogle styleWrite codeGoogle styleMedium15 minLongest common substringMediumWrite codeWrite codeMedium30 minLongest common subsequenceMediumWrite codeGoogle styleWrite codeGoogle styleMedium25 minNth ugly numberMediumWrite codeWrite codeMedium22 minLattice paths countMediumWrite codeWrite codeMedium20 minRob houses in circleMediumWrite codeWrite codeMedium25 minMaximum weight independent set treeMediumWrite codeGoogle styleWrite codeGoogle styleMedium30 minExpected die rolls to targetMediumWrite codeCitadel styleWrite codeCitadel styleMedium30 min