CodingFoundations

Bits and math

Easynot started
Mediumnot started
Hardnot started
ContinueRead the guideView as list
StatusFormatCompany style
Easy
Conversion rate basis pointsWrite code · Meta styleMeta styleWrite codeMeta style10 minConversion rate upliftWrite code · Meta styleMeta styleWrite codeMeta style10 minExperiment durationWrite code · Meta styleMeta styleWrite codeMeta style10 minEmpirical powerWrite code · Netflix styleNetflix styleWrite codeNetflix style10 minPower of twoWrite codeWrite code10 minExtract lowest bitsWrite codeWrite code10 minOdd badge IDWrite code · Amazon styleAmazon styleWrite codeAmazon style10 minPermission bitmask encoderWrite codeWrite code12 minToggle feature flag bitWrite codeWrite code10 minHappy numberWrite codeWrite code15 minExcel column numberWrite code · Microsoft styleMicrosoft styleWrite codeMicrosoft style15 minGray code n-th valueWrite code · Intel styleIntel styleWrite codeIntel style10 min
Medium
TCP flags byte decoderWrite code · Cisco styleCisco styleWrite codeCisco style15 minTCP stream reassemblyWrite code · Cisco styleCisco styleWrite codeCisco style25 minBitmap index queryWrite code · Oracle styleOracle styleWrite codeOracle style26 minSample ratio mismatch detectionWrite code · Meta styleMeta styleWrite codeMeta style15 minSample size lookupWrite code · Meta styleMeta styleWrite codeMeta style14 minVariant winner with guardrailWrite code · Meta styleMeta styleWrite codeMeta style16 minPermission bitmask decoderWrite codeWrite code12 minWater jug measurementWrite code · Google styleGoogle styleWrite codeGoogle style20 minCount divisorsWrite codeWrite code18 minLeast common multiple of rangeWrite codeWrite code15 minTrailing zeros in factorialWrite codeWrite code18 minPrime factorizationWrite codeWrite code18 min
Hard
Bitmap block allocatorWrite code · Apple styleApple styleWrite codeApple style35 minIndex intersection mergeWrite code · Oracle styleOracle styleWrite codeOracle style30 minBinomial coefficient modulo primeWrite code · Citadel styleCitadel styleWrite codeCitadel style35 minModular multiplicative inverseWrite codeWrite code30 minMaximum XOR subsetWrite codeWrite code35 minGeneralized Chinese remainder theoremWrite codeWrite code35 minLongest subarray GCDWrite codeWrite code35 minChinese remainder theoremWrite code · Citadel styleCitadel styleWrite codeCitadel style35 minPrimes in rangeWrite code · Citadel styleCitadel styleWrite codeCitadel style30 minExtended Euclidean algorithmWrite codeWrite code30 minCatalan number modulo primeWrite code · Citadel styleCitadel styleWrite codeCitadel style30 minMiller-Rabin primality testWrite code · Citadel styleCitadel styleWrite codeCitadel style35 min