blackscreen1's profile

Name Derrick Lukimin
School Hwa Chong Institution
Role admin
Country Singapore
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01knapsack 0405 1402 1402_2
1503 1609 1821 3nplus1
3nplus1II 4russians 4sum 727
7up GSS NYSport SameMapInTheRpgWorld
Unbalanced abbb abc_apio23 add1
add1_easy addictiontoworry addition addition2
addition3 addk addone adjacentswaps
adjlist adjmatrix adventure aircon
airplane alienalien amicablecats ancestor
ants appeal applebaskets applefarm
appletree arcade area area_noi
armpit arrayfind arraypartition arrayproblem
assembly assistance atleasttripledate atm
attractions bacteria badnim badpotato
ballgame ballot bananafarm bananasmoothie
bank basement baseplans basketball
beacon beareatrabbit beautifulbrackets becomingred
belittle bestplace bftrouble binarycoins
binaryroads binaryspells bingo blank
boardvision bobek bombing bombing2
bookshelf bosses bosubaiko bottle
boundedpermutation boundlessboxes boxes_hkicpc boxhaskey
boxispull bracketex brackets bracketscore
bracketsuperseq bracketsyndrome breakfast brick
bridge_apio15 buffet bunnyscore burgers
buycoke buycomputer buygifts buyingcandy
cake candies candies_joi candles
candyboxes candymountain_ex candyshop car
card cardgame cards cardtrick
carpark carrots casino catchingcheaters
catfight catleap catlunch cave
ccs change charges cheerleaders
chessislands childsetter2 childvschild chinese
choochoo chope christmasfeast christmaxtrees
cht chunlian cinema clique
clocktower closedpath closedrooms closingshop
cny coinbag coincombinations coinjourney
coke cokelesssugar collectmushrooms collectmushrooms2
collectmushrooms3 collectmushrooms6 combo commando
commonsubstring competition compleecode conductslip
conlang construct container contestcalc
conversations conversations_easy convexhull cookieclickeralpha
cooperation countalp cowland createnumber
crypto cuberoot cudak cups
curtains cycling deathray decayedbridges
deciphering_zane deciphering_zane_4 deda defense101
deforestation deletingnumbers deliveroo democracy
deque descsort devour diamond
digits dijkstra dinowalk discharging
divideby2 divisibility dna_ioi dogmonkey
doll_noi dotjoin doubleflip doubletrip
doubletrouble downbad dquery drones
duckduckgo duckeatduck duckhunt4 ducknuggetconvention
ducktransport duckwander dyingpolynomial dynamicdag
eatcake eating eeducation eelimination
eeniemeenie eescapism eevacuation eexploration
eight election employee entropy
entropy2 equals erp eta
evenorodd exam examinations exhibition
explosion exponentiate exponentiate_ex f7
factorial factorial_easy feast feedtheduck
feedthewallabies feelgood fenwicktree fenwicktree_easy
ferries fibble fibo fibo_easy
figurines findinggrass_ex findingpavement findmultiple
fireandbeary firecracker firefighting firelord
firstabc fizzbuzz flamethrower flamethrower_ex
flappyrabbit flights flip flipcards
floors flybot foodchain foreveralone
fortunetelling fractionalmultiset fractions fraud
frog3 frogs fruits fruitsequences
fuel fuelstation garden gcd
gecko general generosity gentlepairs
gfriendmania gift girlfriend globalwarming
glottalstops gohcart goinghome_agc goodbye
goodprogrammer goodseq goofyrooks goombatower
gotoschool gotoschool_ex gotosleep gotoubun
graphcraft grassplant greenbeans greeting
grid gridgame growingtrees guanine
guards guards_ex guessproblem guessproblem2
guessproblem3 guessproblem3_ex guessproblem4_ex guessqueue
gwynethandtree gymbadges hacking hackthectf
hamster1 harddisk hashcollision hdb
heatwv hedgehogcrimes_easy helloworld helloworld2
hiddenarray history hld hole
homeworkextension hoofpaperscissor housevisit housing
humantrafficking hungrycats hungryrabbits1 hungryrabbits2
identifyinggirlfriends ihate1111 illuminate imagination
indivisibility inheritance inspections installingapps
integralmania inversions ippt iqtest
iqtest2 iqtest3 iqtest4 jamestreet
journey3 jumpontree justright kfc
knapsack knightmoves kthsubstring kusac
labels labs ladybugs laptop
lasers lazycat lboard lcm
lcs leave leftright lemmas
lemonade lengthsort letters letterstamper
levelingup levenshtein lfs lightningrod
lineup lineup2 lis lis_easy
ljll ljubomora llis localexpress
logs lol losingsleep lostarray
lowelements lps lratio lualectures
luarulers luckynumbers2 lunchbox lunchcombo
lunchtime lvm magiccarps magicstring
magicwand makemst makingparallelograms malcolm
management mandarins manycolours manyjobs
mathclass maxavg maximum medianheap
medianstring melons_joig mergeguessproblem milkweed
mindeque minimise minimum mining
minstack miracleflover missingnumber modsum
modules modulochain moneychanger monopoly
monsters motest motest2 motest3
mothertounge motivation mountainbridges mountains
movingkids mrbeancurd mrt mugger
multipaths mushroomfarm naptime neckties
nemo nerdinvitation network nevergiveup
nextprime nicenumber nicewelltakethat nihonese
nis nombor nonboringsequences noodlestore
nou nprime nprime2 numberbuilding
numberfun numbergame numbers numericalstrings
ny_mathexam ny_unwind nycheer nycoordinates
nylunchtime nystudy obstacles obstacletree
oddoneout omnomnom omnomnom2 ontheedge
optimalsubseq optmilk oranges2 orchard
oridance orz packaging packingducks
padoru paint pairs pairsums
palindromicfizzbuzz pancake pandacity pandaeyes
papaya parade parallelogramfest parallelogramisation
park partitiongame party party_noi
pascal password payraise peakfinding
peddler peepeepoopoo penghulu penguinfood
penguingathering penguinislands penguinmountain perfectprimes
performance permutationgrid photo picnic
pigeonhole pigeonnests pigeons pilot
ping pizzeria plagia plantingpotatoes2
playlist poi pokeadd pokenumbers
poklon postcard potatosalad potatotree
potionseasy potionshard powervillage prefixsums
prime primeage primefactorization primepie
primesort problematicjourney problemsetter progression
progressionspells promotion psle purplecandy
pushups pythonindentation queuecutting quillvsowl
rabbiteatrabbit rabbitmeeting rabbitmilk rabbitpainting
race radioactive railway rainbowrabbit
rangerangequery rank raptorinc rarsum
razlika rblock reading reciprocals
rectangleoutline redblacktree relaymarathon removalcosts
reopening replacedigits restaurant reverseandmin
riggedroads rightangtri rmaxq rmq
roadsideadverts rootedlca rotarylock routers
routine rubies runway sadtrainer
sadtrainer2 samelength sandd scalars
scanner sealevel seats2 segmenttree
segmenttree2 selectingintervals shamelessad shamelessad2
shamelessad4 sherlockinversions shops shorten
shortest shuttlerun sightseeing sightseeing2
simcity simp simplebridges simpletask
singlefile singleflip skillmoves skyline
slimes smallprimes smallprimes_ex smurf
smurfpaths snack snail snakenladder
snakesnack2 snapknack sniper snowball
snowcow socks solonim sonictheparallelogram
sonya soos sort sortbooks
sortingtrainers sortingtrainers2 sos spaceinvaders
speakers special specialgirlfriends spellofweakness
splithunny splittingpower square_ioi squidzofrenzic
stackweights staircase stamps stepgame
sterilizing stickytape stones stonk
stories strikes stringsofimpurity subgraphs
subknapsack subtaskstitching sumint summarising2020
summarising2023 summarizing2021 summit sumofdigits
supermarket supperbox supplies swapsort
swayingflowers swimming swords taxcollection
telepathy telephone teleporting thedarknight
tickethandling tiles timeexam topical
tour tourism tourist tourist_noi
towerdefense towers train train_ex
traineeline trains transform trashinteractive
travel treasurehunt treecutting treepruning
treepruning2 trivialexam trivialexam_ex_ex trivialmaths
trollingbribritt troubles twomeals typicalstairs
typo typoswap ultimateifelse uniquenumbers
universe unluckyfloors unmerge vainish
variety verticallychallenged veryeasymath veryeasyproblem
votingcities wabbit wabot walking
wallabyhop warp warp2 watching
waterbomb waterbottles waterbottles3 weddingcoins
whackamole whatisthisactf whiteboardgame whoatethefries
wires woodcutter workload workoutplan
wormholes wronganswer xmas xorb
xorsplit xuehuapiaopiao yaleuniversity yayornay
zanesgift zanesletters zooqueue