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Dynamic programmingLevel 4Open topic
Delete 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 min
Partition 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 minLongest arithmetic progression subsequenceMediumWrite codeGoogle styleWrite codeGoogle styleMedium30 minTree diameter maximum weight pathMediumWrite codeWrite codeMedium25 minKnight probability stays on boardMediumWrite codeCitadel styleWrite codeCitadel styleMedium30 minMaximum profit non-overlapping jobsMediumWrite codeGoogle styleWrite codeGoogle styleMedium30 minCritical path lengthMediumWrite codeWrite codeMedium30 minCombinations of n choose kMediumWrite codeWrite codeMedium20 minDifferent ways add parenthesesMediumWrite codeGoogle styleWrite codeGoogle styleMedium30 minShortest path with edge limitMediumWrite codeAirbnb styleWrite codeAirbnb styleMedium25 minStone removal gameMediumWrite codeCitadel styleWrite codeCitadel styleMedium25 minHouse painting minimum costMediumWrite codeWrite codeMedium25 minStock trading with cooldownMediumWrite codeBloomberg styleWrite codeBloomberg styleMedium25 minStock trading with feeMediumWrite codeBloomberg styleWrite codeBloomberg styleMedium20 min0/1 knapsackMediumWrite codeWrite codeMedium25 minPartition equal subset sumMediumWrite codeWrite codeMedium20 minCoin change waysMediumWrite codeAmazon styleWrite codeAmazon styleMedium20 min