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Problems
basics
challenge
classical
none
partial
riddle
tutorial
Status
Ranking
Forum
SPOJ
time:
2025-04-02
09 : 08 : 42
Yunchang Guan
@vjudge1
China, Chengdu
History of submissions
(
plaintext version
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Problems
List of solved classical problems:
ABA12D
BTCODE_A
EKO
HISTOGRA
MKJUMPS
PMATRIX
STONE2
ABCDEF
BTCODE_C
ELEVTRBL
HNSUBWAY
MKTHNUM
POLYNOM
STPAR
ABCPATH
BTCODE_F
EMOTICON
HOLI
MKUHAR
POLYU
STRCOUNT
ABSP1
BTCODE_G
EMTY2
HOMO
MLASERP
PON
STRDIST
ABSURD
BTCODE_H
EN
HORRIBLE
MLE
POSTERS
STREDUCE
ABSYS
BUGLIFE
EPALIN
HOTELS
MLK
POTHOLE
STRSEQ
ACODE
BUILDING
EQ2
HPYNOS
MMAXPER
POUR1
SUBLEX
ACPC10A
BUREAU
EQU2
HS08PAUL
MMCUT
PPATH
SUBMERGE
ACPC10B
BUSYMAN
EQUI
HUBULLU
MMINPER
PRHYME
SUBS
ACPC10C
BUYINT
ETF
ICODER
MMMGAME
PRIME1
SUBSEQ
ACPC10D
BWORK
EXPEDI
ICPCS
MOBILE
PRIMEZUK
SUBST1
ACPC10E
BYTESE1
FACEFRND
IGARB
MOBILE2
PRINT
SUBSUMS
ACPC10G
BYTESE2
FACT0
IM
MOBIVINA
PRJAN15B
SUB_PROB
ACPC10H
BYTESM2
FACT1
IMGPROJ
MOD
PRJAN15E
SUMFOUR
ACPC10I
CABLETV
FAIRONOT
IMPER
MON2012
PRJAN15F
SUMPRO
ACPC11B
CAGES
FANCY
INCARDS
MORSE
PRLGAME2
SUMSUMS
ACPC11C
CAKE2
FARIDA
INCDSEQ
MPOLY
PRO
SWAPS
ACS
CAM5
FASHION
INCR
MSE06H
PROOT
TABLE
ADDREV
CANDY
FASTFLOW
INCSEQ
MSE06I
PSTR
TAP2012A
ADV04D
CANDY3
FATAWY
INGRED
MSE08G
PSTRING
TAP2012B
ADV04F1
CAPCITY
FAVDICE
ININT
MSKYCODE
PSYCHO3
TAP2012C
ADV04I1
CARDSHUF
FBRIDGES
INS14K
MSTICK
PT07C
TAP2012D
ADV04K
CASTANET
FCANDY
INTCOMB
MTOTALF
PT07F
TAP2012E
ADVEDIST
CATTACK
FCTRL
INTEGER1
MTREE
PT07J
TAP2012F
AE00
CCHESS
FCTRL2
INVCNT
MTRIAREA
PT07X
TAP2012G
AE2A
CDC12_A
FEAST
IOIPALIN
MTWALK
PT07Y
TAP2012H
AE5A2
CDC12_B
FERT21_0
ISAB
MUDDY
PT07Z
TAP2013C
AE5B1
CDC12_E
FIBOSQRT
ISRANK
MUL
PTIME
TAP2013G
AE5B2
CDC12_H
FIBOSUM
IWGBS
MULTQ3
PUCMM210
TAP2013I
AGGRCOW
CERC07B
FIBTWIST
IZBORI
MUSIC
PUCMM223
TAP2014B
AIBOHP
CERC07C
FILRTEST
JANE
MUSKET
QCJ1
TAP2014C
AIRLINE2
CERC07H
FINDPRM
JAVAC
MYQ1
QCJ4
TAP2014E
ALICE
CERC07K
FINDSR
JEDNAKOS
MYQ10
QMAX3VN
TAP2014F
ALICESIE
CERC07L
FINFRAC
JUICE
MYQ12
QTREE
TAP2014I
ALIEN
CERC07N
FIRM
JULKA
MYQ2
QTREE2
TAP2014J
ALL
CERC07P
FISHER
JZPGYZ
MYQ3
QTREE4
TAP2015C
AMCODES
CERC07R
FLIB
KGSS
MYQ5
QTREE5
TAP2015H
AMR10A
CF25E
FNINJA
KOIREP
MYQ6
QTREE6
TAUT
AMR10D
CHICAGO
FNRANK
KOPC12A
MYQ7
QTREE7
TAXI
AMR10E
CHMAZE
FOXWOLF
KPARCH
MYQ8
QUADAREA
TBGAME
AMR10G
CHOCOLA
FPLAN
KPEQU
MZVRK
QUERYSTR
TDKPRIME
AMR10H
CINEMACON
FPOLICE
KPMATRIX
NAIVELOK
QUEST4
TDPRIMES
AMR10I
CIRCLES
FRACTION
KPSUM
NAJPWG
QUEST5
TEAM2
AMR10J
CIRCLE_E
FREQ2
KQUERY
NAKANJ
RACETIME
TEMPLEQ
AMR11A
CIRU
FREQUENT
KQUERYO
NBIN
RAIN3
TEMPTISL
AMR11B
CIRUT
FRNDCIRC
KRECT
NDIV
RAINBOW
TENNIS
AMR11C
CITY2
FRQPRIME
KURUK14
NECSTASY
RAONE
TEST
AMR11D
CLOPPAIR
FSEQ
KUTH
NETADMIN
RATING
TETRA
AMR11E
CNEASY
FTOUR2
KVALTWR
NG0FRCTN
RDNWK
TFRIENDS
AMR11F
CNTINDX
GALOU
LABYR1
NGM
REBOUND
TIPTOP
AMR11H
CNTPRIME
GAME2
LASTDIG
NGM2
RECTANGL
TLE
AMR11J
COCONUTS
GAME3
LAZYPROG
NHAY
RELINETS
TOANDFRO
AMR12A
CODFURY
GAMES
LCA
NICEDAY
RENT
TOE1
AMR12B
COINS
GANNHAT
LCMSUM
NITK06
REPAIR1
TORNJEVI
AMR12C
COLONY
GCD2
LCPC11B
NOCHANGE
REPEATS
TOSCORE
AMR12D
COMCB
GCD3
LCPC12B
NOSQ
RESIST
TOUR
AMR12E
COMDIV
GCDEX
LCPC12C
NOTATRI
REVFIB
TOURIST
AMR12F
COMFUNC
GCJ082A
LCPC12D
NOVICE63
RIOI_3_2
TOURS
AMR12G
COMPANYS
GCJ1C09B
LCPC12E
NPC2014B
RMID
TQ
AMR12H
COMPLETE
GCJ1C09C
LCPC12F
NPC2014E
RNG
TRAFFICN
AMR12I
CONDUIT
GCPC11A
LCPC12G
NQUEEN
ROADNET
TRANSP
AMR12J
COT
GCPC11B
LCPC12H
NSTEPS
ROADS
TRANSP2
AMR12K
COT2
GCPC11C
LCS
NSUBSTR
ROBOT
TREEGAME
AMZRCK
COT3
GCPC11D
LCS2
NSUBSTR2
ROCK
TREX
ANARC05B
COT4
GCPC11E
LCS3
NUMOFPAL
RPAR
TRGRID
ANARC05H
COUNT
GCPC11F
LEXIPOS
NUMPLAY
RPLA
TRICENTR
ANARC07C
COURIER
GCPC11G
LGLOVE
NUMQDW
RPLB
TRICOUNT
ANARC07G
COVER
GCPC11H
LIM
NUMTSN
RPLN
TRIEQUAL
ANARC08G
COWPIC
GCPC11I
LINES
NWERC11A
RRANGE
TRIOMINO
ANARC09A
CPATTERN
GCPC11J
LINEUP
NWERC11B
RRSCHED
TRIP
ANARC09B
CPC
GEM
LIS2
NWERC11C
SAFECRAC
TRIP2
ANARC09F
CPCRC1C
GEN
LISA
NWERC11D
SALMAN
TRSTAGE
ANDROUND
CPRIME
GEOM
LITE
NWERC11E
SAMER08A
TRT
ANGELS
CRYPTO
GEOPROB
LKS
NWERC11F
SAMER08C
TSHOW1
ANTTT
CSTREET
GEORGE
LMCONSTR
NWERC11G
SAMER08D
TSUM
APS
CSUBSEQS
GERGOVIA
LOPOV
NWERC11H
SAMER08E
TTM
ARBITRAG
CTRICK
GHOSTS
LUCIFER
NWERC11I
SAMER08F
TUG
ARCTAN
CUBEFR
GIRLSNBS
M3TILE
NY10A
SAMER08G
TWENDS
AREA1
CUCKOO
GLOVE
MAIN112
NY10E
SAMER08K
TWOPATHS
ARITH
CUTSQRS
GNY07C
MAIN12B
ODDDIV
SAMTWARR
TWOPROF
ARITH2
CVJETICI
GNY07D
MAIN72
OFFSIDE
SAWMILL
TWOSQRS
ARMY
CVXPOLY
GNY07E
MAIN74
OLOLO
SBANK
UCI2009D
ARRANGE
CZ_PROB1
GNY07F
MAIN8_C
ONEXLIS
SBETS
UCV2013H
ARRAYSUB
DAGCNT
GNY07H
MAIN8_E
ONEZERO
SCALES
UCV2013K
ASSIGN
DCD
GNYR09F
MAJSTOR
ONP
SCITIES
UJ
ASSIST
DCEPC11I
GONE
MAKEMAZE
OPCPIZZA
SCPC11B
UNTITLE1
ATOMS
DCEPC807
GOT
MAKETREE
OPTM
SCUBADIV
UPDATEIT
AU7_5
DCEPCA03
GPA1
MARBLES
ORDERS
SEGMENTS
UPSUB
AVARY
DCRYPT
GPINTRI
MATCH
ORDERSET
SEGSQRSS
UQAS
BABTWR
DEFKIN
GRE
MATCHING
OTOCI
SEQ
VCIRCLES
BABY
DETECT
GREED
MATGAME
PAGAIN
SEQ2
VENOM
BACKPACK
DETER3
GS
MATRIX2
PALDR
SEQ6
VFMUL
BACKUP
DICT
GSS1
MATSUM
PALIN
SFLIP
VLATTICE
BADXOR
DIEHARD
GSS2
MAXLN
PARITY
SHAHBG
VOCV
BAISED
DIGOKEYS
GSS3
MAXRAD
PARTIT
SHAMAN
VOL
BALIFE
DINGRP
GSS4
MAXWOODS
PARTPALI
SHANGUL
VONNY
BALLOON
DISJPATH
GSS5
MB1
PARTY
SHMOOGLE
WACHOVIA
BALLOT
DISNEY
GSS6
MBEEWALK
PATULJCI
SHOP
WATER
BALNUM
DISQUERY
GSS7
MBLAST
PAYING
SHOP2
WEBISL
BANDW
DISTANCE
GUANGGUN
MC
PCPC12D
SHPATH
WILD
BARB
DISUBSTR
HACKING
MCARDS
PCPC12E
SKIVALL
WILLITST
BC
DIV
HACKRNDM
MCLB
PCPC12G
SKY
WORDCNT
BEADS
DIV15
HALLOW
MCLONUM
PCPC12I
SKYLINE2
WORDS
BENEFACT
DIV2
HAMSTER1
MCOINS
PCPC12J
SOCIALNE
WORDS1
BFALG
DIVEQL
HAN01
MCQUERY
PEBBLE
SOLDIER
WPUZZLES
BIGSEQ
DIVFIBS
HANGOVER
MDIGITS1
PERIOD
SOPARADE
XMEN
BISHOPS
DIVSUM2
HASH
MDOLLS
PERMUT1
SORTBIT
XXXXXXXX
BITMAP
DOL
HASHIT
MEDIAN3
PERMUT2
SPFIBO
XYI
BLINNET
DOSA
HAYBALE
MFLAR10
PFDEP
SPHIWAY
YODANESS
BOI7SOU
DOTAA
HC12
MICEMAZE
PGCD
SPIRALGR
ZIGZAG
BOMB2
DP
HEADSHOT
MINCOUNT
PHIDIAS
SPP
ZQUERY
BOOKCASE
DQUERY
HEISLAZY
MINDIST
PHONELST
SQFREE
ZTC
BORW
DRTREE
HELPR2D2
MINMOVE
PHRASES
SQRBR
ZUMA
BOTTOM
DSUBSEQ
HERDING
MINSUB
PIBO
SQRROOT
BOXES
DTT
HEROARR
MINUS
PIE
SSORT
BOYSCOUT
DYNACON1
HIGH
MINVEST
PIGBANK
STABLEMP
BRCKTS
EDIST
HIGHWAY1
MIXTURES
PKA
STAMPS
BROKEN
EDIT
HIGHWAYS
MKBUDGET
PLD
STC02
BSHEEP
EIGHTS
HIST2
MKEQUAL
PLONK
STEAD
TODO list of classical problems:
ABA12B
BRTREE
CRYPTO2
GIVEAWAY
MAHJONG
PRETILE
SUMSUM
ABCD
BST
CT
GK
MARIOGAM
PRIMIT
TAN1
ACANVAS
BTCODE_E
CTGAME
GNY07I
MATRIOSH
PRMLX
TAP2013H
ACMAKER
BTCODE_I
CWC2015
GOODG
MAXSUMSQ
PROBOR
TAP2013J
ACPC10F
BTCODE_K
DAGCNT2
GREMLINS
MBRACKET
PROFIT
TAP2015B
ACPC11D
BTOUR
DANGER
GRIDCOIN
MELE2
PROSCORE
TAP2015D
ACQUIRE
BUBBLESORT
DCEPC11B
GSCANDY
MGLAR10
PT07A
TAP2015F
ADV04A1
BULK
DCEPC501
GSWORDS
MONONUM
PT07B
TOE2
ADV04B1
BWIDOW
DEADFR
HABLU
MOWS
PT07D
TRANS
ADV04E
CADYDIST
DIST
HCHAINS
MPILOT
QSTABLE
TRAVERSE
ADV04H
CAKE
DIVREL
HELPBOB
MREPLBRC
QTGIFT1
TREASURY
AE2B
CAKE3
DNALAB
HERBICID
MSTS
QTGIFT3
TREECST
AE3A
CASHIER
DOMINO2
HIGHBABA
MYQ11
QUADRATE
TRICKTRT
AFSK
CATTLEB
DOMINOES
HIKE
MYQ9
QUEEN
TTTABLE
AKVQLD03
CCOST
DONALDO
HILO
NATALIAG
RAIN1
TULIPNUM
ALIBB
CDC12_C
DYNALCA
HXH
NAUGHTY
RMID2
TUTMRBL
ALIEN2
CDC12_D
EC
ICAMPSEQ
NDIVPHI
ROMANRDS
TWICE
ALIENS
CDC12_G
ECLIPSE
IE5
NFACTOR
RPLD
TWIST
ALLIZWEL
CEOI09TR
ENCONDIN
IMITATE
NPC2014C
RPLL
VGCD
AMR11I
CEPC08B
EOPERA
IMP
NUMGAME
RPLM
VISIBLEBOX
ANARC05I
CEQU
EQBOX
INUMBER
NWERC11J
RSTAURNT
VPALIN
ANARC08H
CHAIN
EUROPEAN
JITU
NY10B
SCAVHUNT
VPARTY
APIO14_A
CHASE
FACTOR1
JLEAGUE
OSPROB1
SCYPHER
VPL0_A
APRIME
CHEATING
FIBOSUM2
JZPEXT
PAIRINT
SEQPAR
WA
ARDA1
CIRCSCR
FISHES
KITROB
PANCAKES
SKEY
WEIGHT
ARRHUDAI
CIRCUITS
FOREST2
KNIGHTS
PBCGAME
SLIKAR
WEIRDFN
BIA
CISTFILL
FORMAT1
KOICOST
PCPC12H
SPOINTS
WIJGT
BIRD
CNTTREE
FP
KOZE
PERMJUMP
STC10
WMELON
BISHOP2
CODESPTH
FRND
KPGRAPHS
PERMUT3
STONE
WORDRING
BITDIFF
COLORSEG
FSEATS
KPPOLY
PHONY
STORE
XMAX
BLOCK_D
COMPASS
FSHEEP
KPRIMES2
PIZZALOC
STREETR
BLUEEQ2
CONNECT
GCJ1C09A
KSMALL
PLHOP
STRNGSLV
BOOKS1
COURAGE
GCJPURE
LCS0
PLNDROME
STSTRING
BOWLING1
COWCAR
GEEKOUNT
LITEPIPE
PLNDTREE
SUFEQPRE
BRIDGE
CPRMT
GEN2
LPERMUT
POLYSSQ
SUM1SEQ
BROW
CRSCNTRY
GGD
LSQF
POWPOW
SUMITR
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