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Yunchang Guan

@vjudge1

China, Chengdu

Joined May 2010

World Rank: #51 (213.7 points)

Activity over the last year

Effectiveness

 Problems solved
827
 Solutions submitted
22311

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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