Andy William

@andypertamax

Indonesia, Surabaya

Joined Oct 2011

World Rank: #49 (226.9 points)

Institution: Institut Teknologi Sepuluh Nopember

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

Activity over the last year

Effectiveness

 Problems solved
719
 Solutions submitted
1089

Problems

List of solved classical problems:

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

Public problems created by user:

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