charles chen

@charles1992

China

Joined Jun 2008

World Rank: #280 (76.7 points)

Activity over the last year

Effectiveness

 Problems solved
232
 Solutions submitted
986

Problems

List of solved classical problems:

ACODE BOYSCOUT DISUBSTR INVENT MPIGS PT07J SUBS
ACS BPRED DOMINO2 IVAN MPILOT QTREE SUBST1
ACT BRCKGAME DOMINOES JARA MTRIAREA QUEST4 SUDOKU
ADDREV BRCKTS DRAGON JRIDE MTWALK QUEST5 SUM1SEQ
AE00 BRICKS DRAGON2 JULKA MUSKET RAILROAD SUMFOUR
AE2A BTOUR EDIT2 KPARCH NECKLACE RATTERN SUMSUMS
AE2B BWHEELER EMPODIA KPGAME NICEDAY RECTANGL SUPPER
AE3A BYTESM1 EMPTY KPMATRIX NQUEEN RECTNG1 SWAPS
AE4B CABLETV EN LAZYPROG NUMQDW RELATS1 TAN1
AE5B1 CALLS EPURSE LIAR ONEZERO RENT TAXI
AE5B2 CASHIER EXPAND LIS2 OPTM REPEATS TFSETS
AGGRCOW CAVLI EXPEDI LISA ORDERS ROADNET THREECOL
AIBOHP CCCCUBE EXPLOSN LITELANG OTOCI ROADS TOMJERRY
ALIENS CHAIN EXPR1 LOGIC PANIC ROBOT TOUR
ANGELS CHASE FIRM LONER PARTIT ROCK TOURS
APRIME CHASE1 FLBRKLIN LOSTCT PARTPALI ROCKETS TRANS
ARCTAN CHICAGO FOOL LPERMUT PAYING RPS TRANSL
AROUND CHRIS FSHEEP LSORT PB SAM TRANSP
ASSIGN CNHARD FTOUR2 MA1 PERMUT1 SCALES TRANSP2
ASSIGN4 COINS GAME MAP PHONY SCITIES TREE
BAC CONDUIT GIRLSNBS MATH1 PHRASES SCUBADIV TREE1
BACKUP CONNECT GREED MATRIX PICAD SEGMENTS TWORK
BENEFACT CONTPACK GSS1 MATRIX2 PLHOP SEQ TWOSQRS
BIA COURIER GSS2 MATSUM PLONK SEQ1 VOCV
BIGSEQ COVER2 GSS3 MAWORK POLY1 SEQPAR WATER
BILLIARD CRSCNTRY GSS5 MAZE POLYGAME SERVICE WMELON
BIO1 CSTREET HACKERS MDST POLYSSQ SHAMAN WORDEQ
BIRTHDAY CUTOUT HIGH MENU POSTERS SOPARADE WORDS
BISHOPS CUTSQRS HIKE MIXTURES POTHOLE SORTBIT
BITMAP DAGCNT HKNAP MLAND PRIMIT SQDANCE
BLOCKS DANCE HOLIDAY1 MMCUT PRMLX SQRBR
BLUEEQ2 DECORATE IM MOBILE PROFIT SQRROOT
BOOK DETER3 INCR MOBILE2 PSTRING STABLEMP
BOXES DISTANCE INUMBER MONODIG PT07A STEAD

TODO list of classical problems:

BARB GAME2 HELPR2D2 MARIOGAM MUSIC PT07B SKIVALL
COVER GSS6 LANDSCAP MATCHING NETADMIN PT07F TEST
EXCHANGE HANOI07 LCS2 MSTS PRO REPAIR1 ZEBRA