CodingLevel 2
Backtracking and games
Easynot started
Mediumnot started
Hardnot started
StatusFormatCompany style
Easy
List every distinct subset of numbers with repeatsWrite codeWrite code15 minInterview slot schedulesWrite codeWrite code18 minDoor panel codesWrite codeWrite code15 minWorkstation minimum priceWrite codeWrite code16 minGenerate distribution plansWrite codeWrite code17 minOrder turnaround tasksWrite codeWrite code18 minStage lighting preset toggleWrite codeWrite code16 minJob scheduling with pickup deadlinesWrite codeWrite code18 minMedium
Minimum swaps to sort arrayWrite codeWrite code30 minGenerate parenthesesWrite codeWrite code20 minSudoku validityWrite codeWrite code22 minBeautiful permutationsWrite codeWrite code22 minNim game winning positionWrite codeWrite code25 minCoin game player one winsWrite codeWrite code30 minNext permutationWrite code · Google styleGoogle styleWrite codeGoogle style28 minFibonacci-like sequence splitWrite codeWrite code30 minAdditive numberWrite codeWrite code25 minValid ip address reconstructionWrite code · Amazon styleAmazon styleWrite codeAmazon style25 minGeneralized abbreviationsWrite code · Google styleGoogle styleWrite codeGoogle style25 minDistinct permutationsWrite codeWrite code25 minHard
N-queens placement countWrite code · Google styleGoogle styleWrite codeGoogle style25 minPartition into k equal subsetsWrite codeWrite code30 minExpression evaluation countWrite code · Google styleGoogle styleWrite codeGoogle style35 minLatin squares countWrite codeWrite code30 minSudoku solverWrite code · Google styleGoogle styleWrite codeGoogle style35 minSudoku solution countWrite code · Google styleGoogle styleWrite codeGoogle style40 minExpression target sumWrite code · Google styleGoogle styleWrite codeGoogle style35 minPerfect square stone gameWrite codeWrite code30 minSubtraction game winnerWrite codeWrite code30 minPattern substring bijectionWrite codeWrite code35 minConfusing numbersWrite codeWrite code35 minMaximum word scoreWrite codeWrite code30 min