174 write-ups

projects

2026-03-14toy totpsecurity javascript cryptography
2023-12advent of code 202319 days
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- day 01trebuchet?!autostrings parsing
- day 02cube conundrumautoparsing counting
- day 03gear ratiosautogrid regex
- day 04scratchcardsautosets dynamic programming
- day 05if you give a seed a fertilizerautointervals parsing
- day 06wait for itautobrute force
- day 07camel cardsautosorting counting
- day 08haunted wastelandautographs cycle detection lcm
- day 09mirage maintenanceautosequences finite differences
- day 10pipe mazeautogrid bfs flood fill
- day 11cosmic expansionautogrid manhattan distance
- day 12hot springsautodynamic programming memoization
- day 13point of incidenceautoreflection grid
- day 14parabolic reflector dishautosimulation cycle detection
- day 15lens libraryautohashing linked list
- day 16the floor will be lavaautogrid dfs simulation
- day 17clumsy crucibleautodijkstra grid
- day 18lavaduct lagoonautoshoelace formula geometry
- day 19aplentyautodfs intervals parsing
2023-08-08rust ray tracerrust computer graphics ray tracing
2022-12advent of code 202222 days
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- day 01calorie countingautosorting parsing
- day 02rock paper scissorsautomodular arithmetic
- day 03rucksack reorganizationautosets strings
- day 04camp cleanupautointervals
- day 05supply stacksautostacks parsing simulation
- day 06tuning troubleautosliding window counting
- day 07no space left on deviceautotrees dfs parsing
- day 08treetop tree houseautomonotonic stack grid
- day 09rope bridgeautosimulation sets
- day 10cathode-ray tubeautosimulation binary search
- day 11monkey in the middleautosimulation modular arithmetic
- day 12hill climbing algorithmautobfs grid
- day 13distress signalautorecursion sorting
- day 14regolith reservoirautosimulation grid
- day 15beacon exclusion zoneautointervals manhattan distance
- day 16proboscidea volcaniumautodynamic programming memoization bitmask
- day 17pyroclastic flowautosimulation cycle detection
- day 18boiling bouldersautobfs flood fill 3d geometry
- day 19not enough mineralsautodfs pruning
- day 20grove positioning systemautolinked list modular arithmetic
- day 21monkey mathautotopological sort expression trees
- day 22monkey mapautosimulation grid 3d geometry
2022-05-10mandelrustrust aws lambda mandelbrot
2022-02-21go ray tracergo computer graphics ray tracing
2021-12advent of code 202124 days
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- day 01sonar sweepsliding window
- day 02dive!simulation
- day 03binary diagnosticbit counting
- day 04giant squidsimulation
- day 05hydrothermal venturegrid counting
- day 06lanternfishmatrix exponentiation deque
- day 07the treachery of whalesmedian mean
- day 08seven segment searchbrute force permutations
- day 09smoke basinflood fill
- day 10syntax scoringstack
- day 11dumbo octopussimulation
- day 12passage pathingdfs
- day 13transparent origamiautosets reflection
- day 14extended polymerizationautocounting pair counts
- day 15chitonautodijkstra grid
- day 16packet decoderautoparsing recursion trees
- day 17trick shotautosimulation brute force
- day 18snailfishautotrees recursion parsing
- day 19beacon scannerauto3d geometry rotations counting
- day 20trench mapautocellular automaton grid
- day 21dirac diceautodynamic programming memoization
- day 22reactor rebootauto3d geometry intervals
- day 23amphipodunfinishedsearch
- day 25sea cucumberautosimulation grid
2020-12advent of code 202025 days
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- day 01report repairautotwo pointers sorting
- day 02password philosophyautoparsing counting
- day 03toboggan trajectoryautogrid modular arithmetic
- day 04passport processingautoparsing validation regex
- day 05binary boardingautobinary search sorting
- day 06custom customsautocounting sets
- day 07handy haversacksautographs recursion dfs
- day 08handheld haltingautosimulation brute force
- day 09encoding errorautosliding window two sum
- day 10adapter arrayautodynamic programming combinatorics
- day 11seating systemautocellular automaton grid simulation
- day 12rain riskautosimulation rotations
- day 13shuttle searchautochinese remainder theorem number theory
- day 14docking dataautobit manipulation
- day 15rambunctious recitationautosimulation hashing
- day 16ticket translationautoconstraint propagation sets parsing
- day 17conway cubesautocellular automaton sets
- day 18operation orderautoparsing shunting yard
- day 19monster messagesautoparsing grammars recursion
- day 20jurassic jigsawautogrids rotations hashing
- day 21allergen assessmentautoconstraint propagation sets heaps
- day 22crab combatautosimulation recursion
- day 23crab cupsautolinked lists simulation
- day 24lobby layoutautohex grid cellular automaton sets
- day 25combo breakerautomodular arithmetic brute force
2019-12advent of code 201913 days
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- day 01the tyranny of the rocket equationautoarithmetic
- day 021202 program alarmautointerpreter brute force
- day 03crossed wiresautogrid sets manhattan distance
- day 04secure containerautobrute force counting
- day 05sunny with a chance of asteroidsautointerpreter
- day 06universal orbit mapautotrees recursion
- day 07amplification circuitautointerpreter permutations generators
- day 08space image formatautostrings counting
- day 09sensor boostautointerpreter
- day 10monitoring stationautogeometry number theory sorting
- day 11space policeunfinishedinterpreter simulation grid
- day 12the n-body problemautosimulation cycle detection number theory
- day 13care packageautointerpreter simulation
2018-12advent of code 201816 days
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- day 01chronal calibrationautosets cycle detection
- day 02inventory management systemunfinishedstrings counting
- day 03no matter how you slice itautogrid counting
- day 04repose recordautosorting counting
- day 05alchemical reductionautostrings
- day 06chronal coordinatesautomanhattan distance grid
- day 07the sum of its partsautotopological sort simulation
- day 08memory maneuverautotrees recursion
- day 09marble maniaautodeque simulation
- day 10the stars alignautosimulation geometry
- day 11chronal chargeautobrute force grid
- day 12subterranean sustainabilityautocellular automaton extrapolation
- day 13mine cart madnessautosimulation grid
- day 14chocolate chartsautosimulation strings
- day 15beverage banditsautobfs simulation binary search
- day 16chronal classificationautoconstraint propagation emulation
2017-12advent of code 201717 days
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- day 01inverse captchaautoarrays modular arithmetic
- day 02corruption checksumautoarrays brute force
- day 03spiral memoryautogrid math simulation
- day 04high-entropy passphrasesautostrings hashing
- day 05a maze of twisty trampolines, all alikeautosimulation
- day 06memory reallocationautocycle detection simulation hashing
- day 07recursive circusautotrees dfs recursion
- day 08i heard you like registersautointerpreter parsing
- day 09stream processingautoparsing state machine recursion
- day 10knot hashautohashing arrays modular arithmetic
- day 11hex edautohex grid geometry
- day 12digital plumberautounion-find graphs
- day 13packet scannersautomodular arithmetic brute force
- day 14disk defragmentationautohashing flood fill dfs
- day 15dueling generatorsautosimulation bit manipulation
- day 16permutation promenadeautocycle detection simulation
- day 17spinlockautolinked lists simulation
2016-12advent of code 20169 days
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- day 01no time for a taxicabautosimulation grid sets
- day 02bathroom securityautosimulation grid
- day 03squares with three sidesautogeometry chunking
- day 04security through obscurityautoparsing counting caesar cipher
- day 05how about a nice game of chess?autohashing brute force
- day 06signals and noiseautocounting
- day 07internet protocol version 7autostrings sliding window sets
- day 08two-factor authenticationautosimulation grid array rotation
- day 09explosives in cyberspaceautoparsing recursion tree
2015-12advent of code 201525 days
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- day 01not quite lispautocounting prefix sum
- day 02i was told there would be no mathautoarithmetic geometry
- day 03perfectly spherical houses in a vacuumautosets simulation grid
- day 04the ideal stocking stufferautohashing brute force
- day 05doesn't he have intern-elves for this?autostrings sliding window
- day 06probably a fire hazardautogrid simulation regex
- day 07some assembly requiredautotopological sort graph bitwise
- day 08matchsticksautostrings parsing state machine
- day 09all in a single nightautodfs backtracking graph
- day 10elves look, elves sayunfinishedstrings run-length encoding
- day 11corporate policyautostrings brute force base 26
- day 12jsabacusframework.ioautorecursion json dfs
- day 13knights of the dinner tableautopermutations brute force
- day 14reindeer olympicsautoarithmetic simulation
- day 15science for hungry peopleautobrute force backtracking combinatorics
- day 16aunt sueautofiltering parsing
- day 17no such thing as too muchautodynamic programming memoization subset sum
- day 18like a gif for your yardautocellular automaton grid simulation
- day 19medicine for rudolphunfinishedtrie bfs strings
- day 20infinite elves and infinite housesautodivisors number theory brute force
- day 21rpg simulator 20xxautobrute force combinatorics
- day 22wizard simulator 20xxautodijkstra priority queue state search
- day 23opening the turing lockautointerpreter simulation pattern matching
- day 24it hangs in the balanceautok-sum two pointers recursion
- day 25let it snowautomodular arithmetic triangular numbers