Andy William

@andypertamax

Indonesia, Surabaya

Joined Oct 2011

World Rank: #48 (220.3 points)

Institution: Institut Teknologi Sepuluh Nopember

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

Activity over the last year

Effectiveness

 Problems solved
722
 Solutions submitted
1090

Problems

List of solved classical problems:

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

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