Andy William

@andypertamax

Indonesia, Surabaya

Joined Oct 2011

World Rank: #31 (257.5 points)

Institution: Institut Teknologi Sepuluh Nopember

Not solving anymore, I only create problems for contests now.

Activity over the last year

Effectiveness

 Problems solved
723
 Solutions submitted
1089

Problems

List of solved classical problems:

ABA12D BST DSUBSEQ ICODER MINNUM PSYCHON SUMFOUR
ABCD BTCODE_H DTRAP IEEEBGAM MISERMAN PSYCHOT SUMITR
ABCDEF BUGLIFE EALP1 IGALAXY MIXTURES PT07X SUMSUM
ABCPATH BUILDTOW EASYMATH IGAME MKLABELS PT07Y TAP2012A
ABSP1 BULK EASYPIE IGOR MKMONEY PT07Z TAP2012D
ABSURD BUREAU EASYPROB IIITD1 MMASS PTIME TAP2012H
ABSYS BUSYMAN EBOXES IITKWPCB MMMAGIC3 PTRELIC TAP2013C
ACODE BWB EC_CONB IITKWPCF MMMGAME PUCMM025 TAP2013G
ACPC10A BWIDOW EC_DIVS IITKWPCI MNNITAR PUCMM210 TAP2014B
ACPC10D BYECAKES EC_MODE IITKWPCO MONONUM PUCMM335 TAP2014C
ACPC10E BYTESE2 EC_SER IITWPC4I MRECAMAN QCJ1 TAP2014H
ACPC11B BYTESM2 EDGE IITWPC4J MSCHED QCJ2 TAP2014J
ACS C1LJUTNJ EDIST IMAGE MSE06H QCJ3 TCOUNT2
ACT CAC EDIT IMMERSED MSTRMND QCJ4 TCOUNT3
ADAGAME2 CADYDIST EDIT1 IMPUNITS MUL QKP TDKPRIME
ADDREV CAM5 EGYPIZZA INDIPROG MULTIPLY QTDIVIDE TDPRIMES
ADJDUCKS CANDY EIGHTS INS14A MUTDNA QTGIFT3 TEAM2
ADV04J CANDY3 EKO INS14B MYQ1 QUADAREA TEAMNIM
AE00 CANTON EMILABC INS14C MZVRK QUEST5 TEST
AFS CARRHIM ENEM INS14D M_SEQ RABBIT1 TETRA
AFS2 CATHETEN ENIGMATH INS14E NAIVELOK RANDG THEPOOL
AGGRCOW CATM EOPERA INS14F NAJHQ RANGESUM THRBL
AGS CATTACK EPTT INS14G NAKANJ RANGZER2 TILE001
AIBOHP CDC12_C EQBOX INUM NATALIAG RANJAN02 TLIGHTS
AKVOD05 CENCRY ETF INVCNT NBIN RATING TOANDFRO
ALICESIE CERC07R EVERLAST IPL1 NCLNE RDNWK TOE1
ALIEN CHAOS_CC EXPEDI IRECSQRT NEG2 RE1 TOE2
ALIEN2 CHGROOM EXPR3 ISELECT NGM REBOUND TOHU
ALIEN3 CHICAGO FACEFRND IWGBS NHAY REDRONESIA TOHU2
ALLBARN2 CHICKEGG FACTCG2 IZHONYT NICEBTRE RKS TOURNEY
ALLIN1 CHOCOLA FAKETSP JANE NITK06 RMID TPCPALIN
ALLIZWEL CITY2 FANCY JAVAC NITT1 RMOVIE TRANSMIT
ALMISPY CIVIL FARIDA JNEXT NITT2 ROADNET TRAVERSE
AMBM CLONE FASHION JOKER1 NITT8 ROCK TRGRID
AMR10C CLOPPAIR FAST2 JRIDE NITTROAD ROCKETS TRICENTR
AMR10G CLSLDR FAVDICE JULKA NOSQ ROHAAN TRICOUNT
AMR11B CLTZ FCANDY KBASEEN NOTATRI ROIM TRIGALGE
AMR11E CMPLS FCTRL KFRIENDS NOVICE43 ROMAN TRIKA
AMR12D CNEASY FCTRL2 KFSTB NOVICE62 ROOTCIPH TRT
AMR12G CNTINDX FCTRL4 KGSS NOVICE63 ROULETTD TSHOW1
AMSCO1 CODEIT03 FENCE1 KIMO1 NR2 RPLA TUG
AMZRCK CODERE3 FIBOSUM KMOVES NSTEPS RPLC TWENDS
AMZSEQ CODESPTB FIBTWIST KNGCHECK NSYSTEM RPLD TWOSQRS
ANAGR COEF FLWRS KNJIGE NUMPLAY RPLE UCF
ANARC05B COINS FONTSIZE KOILINE NY10A RPLH UCV2013A
ANARC05I COINTOSS FRNDCIRC KOPC12B NY10E RPLN UCV2013C
ANARC08B COMDIV FTHEELF KOSPC13B OAE RPS UCV2013D
ANARC08D CONGA FUNPROB KOZE OFFSIDE RPSSL UCV2013E
ANARC08G CONHONPR GAMARENA KSELECT OFORTUNE RPSWAR UCV2013F
ANARC08H COURAGE GAME3 KULE OHANIBTR RRSCHED UCV2013H
ANARC09A COWCAR GAMECG LABYR1 OLOLO RTREE UCV2013I
ANARC09B CPCRC1C GAMES LARSUBP ONEXLIS SA04C UCV2013J
ANARC09C CPRMT GARDENAR LASTDIG ONEZERO SAMER08E UJ
AP2 CRAN01 GCD2 LASTDIG2 ONP SAMER08F ULM02C
AP3 CRAZY GCPC11F LCPC12E OPBIT SAMER08G UOFTAB
APPROB CRCLE_UI GEEKOUNT LCPC12F OPCPIZZA SANTA3 UOFTAC
APS CRDS GEOM LENGFACT PAINTBLK SBANK UOFTAD
ARCHI CRSCNTRY GEOPROB LIFERACE PALIN SBETS UOFTAE
ARITH CRYPTO GIRLSNBS LKS PANCAKES SBSTR1 UOFTAF
ARITH2 CRYPTO1 GLJIVE LOCKER PARCARD1 SCPC11A UOFTBB
ARMY CRYPTO2 GNY07H LOOPEXP PARKET1 SCPC11B UOFTBD
ARRAYSUB CRYPTO3 GNYR09F LQDCANDY PARTY SCPC11F UOFTBE
ARRHUDAI CSTREET GOALFR M00PAIR PB SCPC11G UPDATEIT
ASCDFIB CT16E GOODB M3TILE PBCGAME SCUBADIV VECTAR11
ASSIGN CTRICK GOODD MADN PCPC12E SECTORS VERODOOM
ASSIST CUBARTWK GOODE MAGIC4 PCPC12F SEGFAULT VHELSING
ATOMS CUBE GOODF MAIN113 PEBBLE SELFDESN VIENTIAN
AU7_5 CUBEFR GOPI_SW MAIN12A PEBBMOV SHAHBG VOLNTEER
BABTWR CUBES GP1 MAIN12B PEGS SHANGUL VPL0_A
BACKPACK CVJETICI GPA1 MAIN74 PERMUT1 SHELL VPL1_AA
BAD CWORLD GRAFFTRI MAIN8_C PERMUT2 SHOP VPL1_AB
BAISED CYLINDER GREAT_E MAIN8_D PFND SHPATH VPL2_AA
BALIFE CZ_PROB1 GSS1 MAJOR PFOLD SICRANO VPL2_AC
BANDW DANCE GSS3 MAJSTOR PFORLOOP SID VPL2_AD
BANKROB DANGER GUANGGUN MAKESUM PHONELST SILVER VPL2_BC
BASE DCEPC11B GUERNICA MANGOES PHT SIMPGAME VUDBOL5
BC DCEPC11F GUESSING MANJFIRE PIGBANK SKY VUDBOL7
BEADS DCEPC12B GUESSLNK MARBLES PIHEX2 SKYLINE WA
BEENUMS DCEPC12E GUESSTHE MARIO2 PIR SNGGW WACHOVIA
BFPRMCYC DCEPC12F GUMATH2 MATSUM PIRACON SNGLOOP1 WALL
BFROTATE DCEPC14C HACKRNDM MAXGRITH PLAYGAME SNGMSG WATER
BFTAB DCEPC14G HANDS MAXLN POLEVAL SNGPG WEIGHT
BFTRI DCEPC206 HANGOVER MAX_NUM PON SNIM WILLITST
BILLIARD DCEPC504 HAPPYTL MAY99_2 PONY1 SNIPE WINDVANE
BINSTIRL DCEPC505 HASHIT MAY99_3 PONY3 SOLDIERS WINSTRAT
BIO1 DCES HC MAY99_4 PONY8 SORTING WORDCNT
BISHOPS DCRYPT HC12 MAYA PONY9 SPEED WORDS1
BITMAP DECOY HCT00001 MAYCA PORTALUN SPIDY WORKB
BLINNET DERP HEADSHOT MB1 POSAO SPIKES WPC4F
BLOCK_D DGAME HELPDONN MBALL POUR1 SPLITS WPC5D
BLOPER DIEHARD HEPNUM MBEEWALK POWERUP SPRING WPC5I
BLOPER2 DIG HEXBOARD MBR POWTOW SQRBR WTK
BOARD1 DIGNUM HIGHWAYS MC PPATH SQUAREV1 WWAKER
BOGGLE DIGOKEYS HISTOGRA MCAMP PQUEUE STAMPS XMAX
BOMARBLE DISTO HOLIDAY2 MCHAOS PRESIDEN STICKS YAPP
BOPERISH DISUBSTR HOMEW MCLB PRIME1 STK YELBRICK
BOWLING1 DIV15 HORRIBLE MCOINS PRINT STPAR YODANESS
BRCKTS DIVISION HOTELS MECGROUP PRISMSA STRAWB YUMMY
BRDGHRD DIXIE001 HPPROF MFLAR10 PRLOVE STREETR ZSUM
BRIDGE DOJO HPYNOS MICEMAZE PRMQUER STRGAMB
BRODOVI DONALDO HPYNOSII MIDEARTH PROBLEM4 SUBSHARD
BROUL DOTAA HUBULLU MIDO PROSCORE SUBSN
BSHEEP DQUERY HXH MINCOUNT PSWITCH SUBST1
BSHIP DRINK ICAMPSEQ MINI PSYCHO3 SUBTLEBA

Public problems created by user:

TIGA NPC2014A NPC2014H BLKEK
THINK NPC2014B CARDFLIP BLMIRINA
THINKBIT NPC2014C YOSSY BLMIRANA
THINKX NPC2014D BLBONO BLAMOEBA
THINKLOL NPC2014E BLHETA THINKLUL
KSMALL NPC2014F BLUNIQ BLLUCK
L2R NPC2014G BLCONE COVFEFE