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Zheng Sun

@davidsun

United States, Mountain View

Joined Mar 2007

World Rank: #113 (133.9 points)

Institution: Google Inc.

Activity over the last year

Effectiveness

 Problems solved
245
 Solutions submitted
1234

Problems

List of solved classical problems:

ACARGO CALCULAT ENEMY HHAND MKBUDGET PRLGAME STORE
ACS CASHIER EOPERA HIGH MKJUMPS PROFIT SUBSEQ
AEROLITE CAVE EQU2 HOLIDAY1 MLAND PSTRING SUBST1
ALIBB CCOST EXPAND HOLIDAY2 MOBILE PT07A SUDOKU
ALICEBOB CDOWN EXPLOSN HOSPITAL MOBILE2 PT07C SUDOKU2
ALIENS CEPC08B FAIRONOT ICAMPSEQ MOLE PT07D SWAPS
ALTARS CERC07C FAMILY ICERINK MORPH PT07F TEST
AMATH CHAIN FCATTLE ICPCS MSTS PT07H TETRIS3D
ANALYSER CHRIS FERRY IMPORT1 MUSIC PT07J TFSETS
ARCTAN CIRCLES FFROG INCDSEQ MWORDS QTREE TILING
ARITH CLEVER FINFRAC INCR NAJKRACI QTREE2 TLE
AROAD CMEXPR FIRM INDEXGEN NAPTIME QTREE4 TOUR
AROUND COCONUTS FOLD ININT NCKLCE QTREE5 TRAFFICN
ASSIGN5 CONTEST FOREST2 KEQ NICEDAY RAIL TRANSP
BAC COVER FRACTAN KNIGHTS NQUEEN RAILROAD TRANSP2
BACKPACK COVER2 FSEATS KPARCH OFBEAT RAIN2 TREASURY
BALLOON CSUBSEQS FSHEEP KPMATRIX ONP RATTERN TREEOI14
BARB CUTOUT FTOUR KPMAZE OPTM RECTANGL TRIOPT
BIA CVXPOLY FTOUR2 KPPOLY OPTSUB REMGAME TRIP
BICYCLE DETER2 GANNHAT KPSUM ORZ RNG TRSTAGE
BIGSEQ DETER3 GCD2 KRUSKAL PAINTBLC ROBOT TTABLE
BIRTHDAY DIRVS GEN LARGE PAINTBLK ROCKETS TWOPROF
BLOCKS DISTANCE GETBACK LEMON PAINTTMP RP UCUBE
BLUEEQ DISUBSTR GIWED LIAR PALIN RSORTING UNTITLE1
BLUEEQ2 DIVSUM2 GLOVE LIS2 PARITY SC1 UNTITLED
BOOKCASE DNA GPINTRI LOGIC2 PERMUT3 SCITIES WARE
BOOLE DNALAB GRC LONER PHRASES SEGMENTS WIDGET
BOXES DOMINO2 GREED LOSTCT PIB SEQ1 WIJGT
BOYSCOUT DOUBLEVI GREEDULM LPERMUT PNTBYNUM SEQ2 WILD
BPRED DQUERY GSS1 MARTIAN POLYCODE SEQ5 WINDOW1
BRCKTS DRAGON GSS2 MATH1 POLYEQ SKIVALL WMELON
BUILD DRAGON2 GSS3 MAZE POLYSSQ SOPARADE WORDEQ
CAKE EASYPROB GSS5 MDST PRETILE SPIN WORDRING
CAKE2 EDIT2 HEAPULM MEMDIS PRHYME SPP WORDS
CAKE3 EDIT3 HEXAGON MINUS PRIME1 SQCOUNT WORMS

TODO list of classical problems:

BALIFE BUNDLE DELCOMM2 EXCHANGE LEXBRAC MKPAIRS SSORT
BRCKGAME CERC07H DESERT HANGLET LINELAND SEQPAR2 TICKET
BREAK CERC07S DICE1 HKNAP MINDIST SERVICE TOMJERRY

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