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Problems
basics
challenge
classical
none
partial
riddle
tutorial
Status
Ranking
Forum
SPOJ
time:
2025-09-01
14 : 01 : 41
Vipul Srivastava
@devilwolverine
India, Bangalore
Institution: Amazon.com
History of submissions
(
plaintext version
)
Problems
List of solved classical problems:
AAC2
BSHIP
DSH
IAPCR2F
MJLAR10
POTATOPL
STPAR
ABA12C
BT69
DST
ICANDIES
MKEQUAL
POTIONS
STREETR
ABA12D
BTCODE_D
DSUBSEQ
ICCSECRET
MKLABELS
POUR1
STRMATCH
ABCD
BUBBLESORT
DSWEETS
ICODER
MKMONEY
POWFIB
SUBPAL
ABCDEF
BUGLIFE
DTWW
ICPC12C
MKPALS
PPATH
SUBS
ABCPATH
BUILDTOW
DUGDUG
IDC1948
MKUHAR
PPR
SUBSEQ
ABSP1
BUREAU
DUKKAR
IEEEBGAM
MLAND
PQUEUE
SUBSN
ABSURD
BURGLARY
DYZIO
IGALAXY
MLASERP
PR003004
SUBSUMS
ABSYS
BUSYMAN
EASYMATH
IGARB
MLK
PRADIPSUM
SUFEQPRE
ACFRAC
BWIDOW
EASYPIE
IIITD1
MMASS
PRATA
SUMDEC2
ACMT
BYECAKES
EBOXES
IIITMSTUD
MMATRIX
PRESIDEN
SUMFOUR
ACODE
BYTESE1
EC_CONB
IITD4
MMAXPER
PRIME1
SUMITR
ACPC10A
BYTESE2
EC_ESTA
IITKWPCA
MNIU
PRIMEZUK
SUMMATION
ACPC10B
BYTESM2
EDIST
IITKWPCB
MOHIB
PRIMPERM
SUMMUL
ACPC10D
C1LJUTNJ
EDIT
IITKWPCF
MOHIBPIZ
PRISMSA
SUMPRO
ACPC10E
CADYDIST
EGYPIZZA
IITKWPCG
MOHIBTREE
PRJAN15B
SVADA
ACPC11B
CAM5
EIGHTS
IITKWPCJ
MONEYYTU
PRLGAME2
SVAREA11
ACPC11C
CANDY
EIUASSEMBLY
IITKWPCN
MONONUM
PRO
SWTHIN
ACS
CANDY3
EKO
IITKWPCO
MORENA
PROBLEM4
SYNC13C
ACT
CANDYSTN
ELEVTRBL
IITWPC4A
MOVIFAN
PROFF
TAILS
ACTIV
CANPR
ELPESUM
IITWPC4B
MOWGLI
PROFILING
TAKIN
ADABANKET
CANTON
EMTY2
IITWPC4H
MOZHSLM
PROOT
TANDV
ADACHES2
CAN_U_GO
EMTY3
IITWPC4I
MPART
PROSCORE
TAP2012B
ADACOINS
CAPRICA
ENCONDIN
IMAGE
MPRIME1
PRUBALL
TAP2013G
ADACUT
CARRHIM
ENIGMATH
IMMERSED
MRECAMAN
PSYCHO2
TAP2013H
ADADUNG
CATINV
EPALIN
IMPUNITS
MSCHED
PSYCHON
TAP2014B
ADAFIELD
CATM
EPTT
INCARDS
MSE06H
PT07Y
TAP2014E
ADAFRIEN
CATTACK
EQ
INCPOWK
MSE07B
PT07Z
TAP2014G
ADAGCD
CBANK
EQDIV
INDIPROG
MSTICK
PTIME
TAP2014J
ADAHACK
CBIT01
EQUI
INS14C
MSUBSTR
PTRELIC
TAP2015C
ADAINDEX
CCHESS
EQUIPASS
INS14D
MTHUR
PUBLICAT
TAP2015D
ADAM1
CDC12_B
ESJAIL
INS14G
MTOTALF
PUCMM009
TAP2015H
ADAPET
CDC12_E
ESSY
INS14K
MUL
PUCMM025
TDKPRIME
ADAPLANT
CDOWN
ETF
INTSUB
MULSORT
PUCMM210
TDPRIMES
ADAPLUS
CDRSANJ
ETFD
INUM
MULTII
PUCMM334
TEAM2
ADAQUEUE
CENCRY
EXPEDI
INVCNT
MUSVIOMG
PWRANDMOD
TEMPERAT
ADARAIN
CEPC08B
FACEFRND
IOIPALIN
MYQ1
PYRA
TEMPLE01
ADARAINB
CEQU
FACT0
IPAD
MYQ2
QBALL
TESSER
ADAROBOT
CERC07N
FACTCG2
IPCELLS
MYQ5
QCJ1
TEST
ADASEA
CERC07R
FACTMUL
IWGBS
MYQ6
QCJ2
TETRAVEX
ADASEQEN
CF33C
FACTMULN
IZHONYT
MZVRK
QKP
TEWBMCUL
ADASETS
CFPARTY
FACVSPOW
JAVAC
M_SEQ
QN01
TFRIENDS
ADASUM
CFRAC
FAKETSP
JBIRDS
NABILHACKER
QN02
THEATRE
ADATEAMS
CFRAC2
FALTAENV
JC15A
NABILISU
QUADAREA
THECODE
ADATRIP
CGBOY
FAMWEALT
JERRY
NAGAY1
QUADRATE
THRBL
ADAUSORT
CHAIR
FANCY
JGTLE
NAIVELOK
QUERYSTR
THREENUMBERS
ADDAP
CHARGY
FARIDA
JLNT
NAJ0001
QUEST5
THRPWRS
ADDREV
CHASE
FARMER
JNEXT
NAJGC
R6PL
THRSUM
ADFRUITS
CHICAGO
FASHION
JOCHEF
NAJPF
RABBIT1
TIEROPE
ADRABR
CHICKEGG
FAST2
JOKER1
NAJPWG
RACETIME
TIP1
ADST01
CHOCOLA
FATAWY
JOSWAP
NAKANJ
RAFANOLE
TIPTOP
ADV04B1
CHOTU
FAVDICE
JPM
NANO
RAIN3
TLIGHTS
ADV04H
CHUNK2
FAVSUBS
JRIDE
NASPRIM
RAINBOW
TLL237
ADV04J
CINEMACON
FCDC
JULKA
NATALIAG
RANDG
TLPNGEM
ADV04L
CIRCLEDIV
FCTRL
JUMPPY
NAUGHTY
RANDMOD
TMSUM
AE00
CIRCLE_E
FCTRL2
JUNL
NCLNE
RANGESUM
TOANDFRO
AFS
CISTFILL
FCTRL4
KAOS
NDIV
RANJAN02
TOE1
AGGRCOW
CITY2
FENCE1
KATHTHI
NDIVPHI
RANJAN05
TOE2
AGPC01G
CLASSICO
FERT21_0
KFRIENDS
NDS
RATING
TOHU
AGPREFX
CLAW
FESTIVAL
KFSTB
NDT
RCB
TOHU2
AHORCADO
CLEANRBT
FIBONOMIAL
KIMO1
NECKDEC
RDR2_1
TOUR
AIBOHP
CLFLARR
FIBOSUM
KINJUTSU
NEG2
REALNO
TRANCLS
AKBAR
CLOCK1
FIBTWIST
KIT
NFACTOR
REAYZCODETST
TRANK
AKVOD05
CLONE
FILRTEST
KMOVES
NFURY
REDARR2
TRAVERSE
AKVQLD03
CLTZ
FINDPRM
KNGCHECK
NG0FRCTN
REDRONESIA
TREEDEGREE
ALCATRAZ2
CMG
FINDSR
KNIGHTSR
NGIRL
REDSUBLIA
TREENUM2
ALICESIE
CMPSSTR
FINGP
KNJIGE
NGM
RENT
TRFPLN
ALIEN
CNEASY
FISHER
KNMOVE
NGM2
REVIEW
TRGRID
ALIEN2
CNTDO
FLIB
KNPSACK
NHAY
RGBRED
TRICKTRT
ALLIZWEL
CNTINDX
FLLM
KOIREP
NICESEQ
RIOI_2_3
TRICOUNT
ALTSEQ
CODCHESS
FLT
KOPC12A
NINJA1
RIVALS
TRIGALGE
ALTURAS
CODECODE
FLWRS
KOPC12B
NINJA2
RKRCTAN
TRIISO
ALWFACT
CODEIT03
FONTSIZE
KOPC12H
NINJA3
RKS
TRIKA
AMBM
CODEM4
FOODIES
KOSPC13B
NINJA4
RLCIPHER
TROOPS
AMR10C
CODERE3
FOXLINGS
KOZE
NINJA5
RLE
TRVCOST
AMR10G
CODESPTB
FPOLICE
KPRIMESB
NINJA7
RLM
TRYCOMP
AMR11E
CODFURY
FRACTION
KROW
NITK06
RLTOUR
TSHOW1
AMR11J
CODGRF
FRMT
KSMALL
NITT2
RMID
TSPMOHUG
AMR12D
CODWRECK4
FRND
KTH_INDEX
NITT8
RMID2
TTBRM
AMR12G
COEF
FRNDCIRC
KURUK14
NITTROAD
ROADNET
TTTABLE
AMSCO1
COINS
FRNDZND
KUSAC
NNUM
ROBBERY2
TULIPNUM
AMZRCK
COINTOSS
FROGPARTY
LABYR1
NOSQ
ROBOTGRI
TUTMRBL
AMZSEQ
COLONY
FRONT
LABYR2
NOTATRI
ROBOWORLD
TWINSNOW
ANAGR
COMDIV
FRQPRIME
LAGRANGE
NOVICE43
ROCK
TWOKINGS
ANARC05B
CONGA
FRSCR
LARSUBP
NOVICE62
ROHAAN
TWOSQRS
ANARC05H
CONHONPR
FTHEELF
LASER
NOVICE63
ROMAN008
TWOSUMQUERY
ANARC05I
CONSEC
FUNAREA
LASTDIG
NPC2014F
ROOTCIPH
UCBINTB
ANARC07C
CORN
FUNFACT
LASTDIG2
NPC2015A
RPLA
UCBINTC
ANARC08B
CORNET
FUNMODSEQ
LASTSHOT
NPC2015B
RPLB
UCBINTF
ANARC08F
COWCAR
FUNPROB
LAWNMWR
NPC2015D
RPLC
UCBINTG
ANARC08G
CPCRC1C
FURYROAD
LAZYPROG
NSQUARE
RPLD
UCBINTH
ANARC08H
CPDUEL5A
GAMES
LCA
NSQUARE2
RPLE
UCI2009B
ANARC09A
CPRIME
GARBAGE
LCMSUM
NSTEPS
RPLG
UCV2013A
ANARC09B
CPRMT
GARDENAR
LCPC12E
NSYSTEM
RPLH
UCV2013C
ANGRMTST
CRAN01
GASOLINE
LCPC12F
NUMBERTH
RPLJ
UCV2013E
ANTP
CRAN02
GCD2
LCPC12H
NUMOFPAL
RPLK
UCV2013H
AP2
CRAN04
GCDEASY
LCS3
NUMPATH
RPLL
UCV2013I
APCER
CRAZYSK
GCDS
LENGFACT
NUMPLAY
RPLN
UCV2013J
APM
CRCLE_UI
GCDSQF
LEXSTR
NY10A
RROOT
UFPR14D
APPROB
CRDS
GCJ101BB
LINES
NY10B
RSHIFT
UJ
APS
CRNVALEN
GCJ1C09B
LKS
NY10E
SABBIRGAME
UJ01
ARBITRAG
CROBOTS
GCJ2012C
LLCA
OAE
SAFECRAC
ULM09
ARDA1
CROSSOVER
GCPC11A
LNGPALN
ODDDIV
SALTOS
UNIHW
ARITH2
CRSCNTRY
GCPC11F
LOCKER
ODWS
SAMER08A
UOFTAB
ARMY
CRYPTO1
GCPC11J
LOOPEXP
OEN
SAMER08E
UOFTAC
AROPE
CRYPTON
GDCOFTI
LOPOV
OFFSIDE
SAMER08F
UOFTAE
AROPE2
CRZYSMKR
GEOPROB
LOSTBOX
OFORTUNE
SAMER08G
UOFTBB
ARRANGE
CSHOWB
GEORGE
LOSTNSURVIVED
OHANIGAME
SAS001
UOFTCC
ARRAYSUB
CSLIKAR
GERGOVIA
LOVEBIRDS
OHANISER
SAS003
UOFTCE
ARRPRM
CSTREET
GGD
LOVEGURU
OLOLO
SBANK
UPDATEIT
ARRTWIST
CT25C
GIRLSNBS
LPIS
OMWG
SBETS
UPDTARR
ARTHEVAL
CTGAME
GLJIVE
LQDCANDY
ONEZERO
SCALE
URD
ASCDFIB
CTTC
GMMOD
LTRAFFIC
ONP
SCAVHUNT
URJC2_A
ASHMHF
CUBARTWK
GMSTRE
LVADER
ONTIME
SCPC11A
URJC2_E
ASSIST
CUBEFR
GNY07C
M00PAIR
OPBIT
SCPC11B
VAPI01
ATMCMXNG
CUBES
GNY07D
MACHCOOL
OPCPIZZA
SECTORS
VDATE
ATOMS
CUBNUM
GNY07E
MACHCOOL2
OPCTRIP
SEQ6
VECTAR10
AU7_5
CUCKOO
GNY07F
MAGSUB1
OPMODULO
SEQAGAIN
VECTAR11
AUTOMATA
CURDPROD
GNYR04C
MAIN111
ORDERSET
SEQUENCE
VECTAR12
AVLVKT
CUTCAKE
GOC11A
MAIN113
ORDSUM23
SERGRID
VECTAR13
BABTWR
CWC2015
GOC11B
MAIN12A
OSPROB1
SETNJA
VECTAR4
BAD
CZ_PROB1
GOIT
MAIN12B
OU7
SEUG
VECTAR5
BADXOR
DABRI001
GONDOR
MAIN12C
OVGDEL
SGIFT
VECTAR6
BAISED
DALTSUM
GONE
MAIN72
OVISLARSUM
SHAHBG
VECTAR7
BALIFE
DANGER
GOO
MAIN74
PAGAIN
SHAKILKEYWORD
VECTAR8
BALLOT
DAVIDG
GOODB
MAIN8_C
PAIRSUM
SHAKTI
VENOM
BALLSAG
DBALLZ
GOODD
MAJOR
PALACE
SHELL
VERODOOM
BALLSUM
DCEPC11B
GOPI_SW
MAJSTOR
PAML
SHLIGHTS
VFMUL
BANDW
DCEPC11F
GOSSIPER
MAKEMAZE
PANCAKES
SHOP
VFRIENDS
BAPPP
DCEPC12E
GPA1
MAKETREE
PARADOX
SHP
VHELSING
BASE
DCEPC12G
GR
MANGOES
PARCARD1
SHPATH
VISIBLEBOX
BC
DCEPC12H
GRUPVIVA
MAPEXC
PARKET1
SICRANO
VOLNTEER
BDOI16A
DCEPC14D
GRZZ
MARBLES
PARKINGL
SID
VPL0_B
BDOI16B
DCEPC206
GSHOP
MARIO2
PARTY
SILVER
VPL2_AA
BDOI16C
DCEPC207
GUANGGUN
MARYBMW
PATHEADS
SINEGGS
VPL2_AC
BEADS
DCEPC501
GUESSTHE
MAS
PATHGAME
SKS001
VPL2_AD
BEENUMS
DCEPC504
HACKRNDM
MASUM
PAUWS
SKY
VPL2_BC
BEHAPPY
DCEPC505
HALLOW
MATHLOVE
PB
SKYLINE
VUDBOL7
BEMINE
DCEPC701
HANDS
MATRIOSH
PCLNMBR
SKYLINE2
VZLA2019C
BENEFACT
DCEPC705
HANGOVER
MAWORK
PCPC12D
SK_001
VZLA2019E
BFIT
DCEPC706
HAP01
MAXGRITH
PCPC12E
SLNCRD
VZLA2019G
BGIRL
DCEPC803
HAPPYTL
MAXI
PCPC12I
SMALL
VZLA2019K
BGSHOOT
DCEPCA03
HARISH_PUZZLE
MAXLN
PCPC12J
SMILEY1807
WACHOVIA
BHAT007
DCEPCA10
HARSHAD
MAXSUB
PCSKREAA
SMTOILET
WAGE
BINGO
DCRYPT
HARSTR
MAXSUMSQ
PCSKREAB
SNGCP
WAL3A
BINPRNUM
DEADFR
HASHIT
MAXWOODS
PEBBLE
SNGDIV69
WAYHOME
BINSTIRL
DEFKIN
HAYBALE
MAXXOR
PERFECTR
SNGGW
WEIGHT
BIO1
DEPOSIT
HC
MAX_NUM
PERFSQNUM
SNGINT
WEIGHT3
BISHOPS
DESRUG
HC12
MAY99_2
PERIOD
SNGMSG
WEIRDFN
BIT2
DEV_CP
HDEVIL
MAY99_3
PERMUT1
SNGPG
WILLITST
BITDIFF
DICTSUB
HEADSHOT
MAY99_4
PERMUT2
SNIPE
WONOWON
BITMAP
DIEHARD
HELPDONN
MB1
PFDEP
SOCIALNE
WORDCNT
BITPLAY
DIG
HEPNUM
MBEEWALK
PFND
SOCNETC
WORDCNT2
BLAMOEBA
DIGITROOT
HERDING
MBINGO
PFORLOOP
SOLDIERS
WORKB
BLCONE
DIGOKEYS
HG
MBRACKET
PHONELST
SOLVEIT
WOWSUBSTR
BLINNET
DISGRAPH
HIGHBABA
MC
PHT
SORTMUCH
WOWSUBSTR2
BLKEK
DISJPATH
HIGHWAYS
MCHAOS
PICAD
SORTOUT
WPC4C
BLLUCK
DISUBSTR
HIPPO
MCIRGAME
PIE
SPACESHIP
WPC4F
BOBAINV
DIV
HISTOGRA
MCITYHAL
PIGBANK
SPAM_ATX
WPC5I
BOGGLE
DIV2
HLPRSRCH
MCLONUM
PIHU1
SPCJ
WSCIPHER
BOI7SEQ
DIVEQL
HLP_RAMS
MCOINS
PIR
SPCM
XMEN
BOI7SOU
DIVFACT
HMBY
MCUR98
PKPLOL
SPCQ
XYI
BOKAM143SOU
DIVFIBS
HMLIS
MDOLLS
PL
SPCS
YAPP
BOLESSON
DIVISION
HOMO
MECGROUP
PLAYGAME
SPCU
YELBRICK
BOMARBLE
DIVSEQ
HONDA
MELE3
PLD
SPEC_SET
YODA
BOOKS1
DIVSTR
HOTELS
MFLAR10
PLNDROME
SPEED
YODANESS
BOOKWORM
DNPALIN
HPFORF
MGSINFOA
PLSEARCH
SPIDY
YOSEQ
BOPERISH
DOL
HPPROF
MICEMAZE
PLUS
SPIKES
YOYOCQM
BOTTOM
DOMINO1
HPYNOS
MIDO
PLUSEVI
SQPENT
YUMMY
BPF1
DOMINST
HPYNOSII
MINCOUNT
POCRI
SQRMINSUM
ZCR
BPM
DONALDO
HS08PAUL
MINDIFF
POLCONST
SQRROOT
ZIGZAG
BRCKTCHK
DOSA
HS09EQ
MINMOVE
POLEVAL
SQUAREV1
ZNANSTVE
BRDGHRD
DOTAA
HS10SQFT
MINNUM
POLICEMEN
STABLEMP
ZSUM
BRIDGE
DRAGKING
HSHW
MINSTACK
POLYMUL
STACKOFBOXES
BRIDGES2
DRAWIT
HUBULLU
MINSTOCK
PON
STAMPS
BRODOVI
DRAWM
IAPCR2C
MINVSMIN
PONY4
STARSBC
BROKEN
DROOT
IAPCR2D
MISERMAN
POSAO
STAVATAR
BROUL
DRUIDEOI
IAPCR2E
MIXTURES
POSTERIN
STONE
TODO list of classical problems:
ACPC10C
BSPRIME
DISQUERY
HXH
MODSEQ
PRJAN15F
SUBST1
ACPC13
BST
DISTANCE
IDO
MOZHCAN
QCJ3
TABY
ADACABAA
BUNNIES
DIVSUM2
IITWPC4C
MSE08G
QUEEN
TBATTLE
ADACHESS
BUYINT
DOMINOES
IITWPC4J
MTWALK
RDNWK
TRAILDIG
ADACLEAN
BVAAN
EAGLE1
IM
MUL2COM
REC
TUG
ADAJOBS
BWHEELER
EASYFACT
INTERVAL
NPC2014E
REDCROSS
ULM2H
ADALIST
CAGES
EC_DIVS
JUICE
NPC2016A
RMTLAND
VECTAR9
ADAPLNTS
CANDN
ESCAPE1
KATHTHI2
NPC2016C
ROADS
VGCD
ADATOMAT
CAPCITY
FACTDIV
KPOWERSUM
OFFSTRAT
RPSWAR
VPARTY
ADAVISIT
CHAIN
FRS2
KUMAR2019
ORDERS
RRSCHED
WATER
ALCATRAZ3
CMEXPR
GHOSTS
LASER_BEAM
PALIN
SCPC11H
WINDVANE
ALIEN3
COD1
GNTFNTN
LINEUP
PALOVE
SCROLL
WORDEQ
ALIENS
CODPABBU
GONESORT
LPERMUT
PARSUMS
SFN
WORDS1
AMR11A
COUNT1IT
GP1
LUBEN
PGCD
SHUB1307
WTFM
AMR12E
COWGATH
GRIDCOIN
MAIN8_E
PHONMESS
SIGNPOST
WTK
AROPE3
CPDUEL5B
GSMATRIX
MARSCOL
PHONY
SITB
BALLLSTA
CTRICK
GSS3
MCAMP
PKA
SMALLM
BDOI16E
DCEPC810
HALCAND
MGSINFOB
POSTERS
SNGLOOP1
BORW
DEPEND
HISIX
MKTHNUM
POWERCAR
SORTBIT
BREAK
DICT
HOLIDAY1
MMMAGIC4
PRINT
STRNGSLV
BSEXP
DINONUM
HOMEW
MMMGAME
PRIZES
SUBMERGE
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