Andy William

@andypertamax

Indonesia, Surabaya

Joined Oct 2011

World Rank: #41 (250 points)

Institution: Institut Teknologi Sepuluh Nopember

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

Activity over the last year

Effectiveness

 Problems solved
743
 Solutions submitted
1148

Problems

List of solved classical problems:

ABA12D BSHIP DTRAP ICODER MIXTURES PT07Y SWERC14G
ABCD BST EALP1 IEEEBGAM MKLABELS PT07Z TAP2012A
ABCDEF BT69 EASYMATH IGALAXY MKMONEY PTIME TAP2012D
ABCPATH BTCODE_H EASYPIE IGAME MMASS PTRELIC TAP2012H
ABSP1 BUGLIFE EASYPROB IGOR MMMAGIC3 PUCMM025 TAP2013C
ABSURD BUILDTOW EBOXES IIITD1 MMMGAME PUCMM210 TAP2013G
ABSYS BULK EC_CONB IITKWPCB MNNITAR PUCMM335 TAP2014B
ACODE BUREAU EC_DIVS IITKWPCF MONONUM QCJ1 TAP2014C
ACPC10A BUSYMAN EC_MODE IITKWPCI MRECAMAN QCJ2 TAP2014H
ACPC10D BWB EC_SER IITKWPCO MSCHED QCJ3 TAP2014J
ACPC10E BWIDOW EDGE IITWPC4I MSE06H QCJ4 TCOUNT2
ACPC11B BYECAKES EDIST IITWPC4J MSTRMND QKP TCOUNT3
ACS BYTESE2 EDIT IMAGE MUL QTDIVIDE TDKPRIME
ACT BYTESM2 EDIT1 IMMERSED MULTIPLY QTGIFT3 TDPRIMES
ADAGAME2 C1LJUTNJ EGYPIZZA IMPUNITS MUTDNA QUADAREA TEAM2
ADDREV CAC EIGHTS INDIPROG MYQ1 QUADRATE TEAMNIM
ADJDUCKS CADYDIST EKO INS14A MZVRK QUEST5 TEST
ADV04J CAM5 EMILABC INS14B M_SEQ RABBIT1 TETRA
AE00 CANDY ENEM INS14C NAIVELOK RANDG THEPOOL
AFS CANDY3 ENIGMATH INS14D NAJHQ RANGESUM THRBL
AFS2 CANTON EOPERA INS14E NAKANJ RANGZER2 TILE001
AGGRCOW CARRHIM EPTT INS14F NATALIAG RANJAN02 TLIGHTS
AGS CATHETEN EQBOX INS14G NBIN RATING TLPNGEM
AIBOHP CATM ETF INUM NCLNE RDNWK TLPNGEM2
AKVOD05 CATTACK EVERLAST INVCNT NEG2 RE1 TOANDFRO
ALICESIE CDC12_C EXPEDI IPL1 NGM REBOUND TOE1
ALIEN CENCRY EXPR3 IRECSQRT NHAY REDRONESIA TOE2
ALIEN2 CERC07R FACEFRND ISELECT NICEBTRE RKRCTAN TOHU
ALIEN3 CHAOS_CC FACTCG2 IWGBS NITK06 RKS TOHU2
ALLBARN2 CHGROOM FAKETSP IZHONYT NITT1 RMID TOURNEY
ALLIN1 CHICAGO FANCY JANE NITT2 RMOVIE TPCPALIN
ALLIZWEL CHICKEGG FARIDA JAVAC NITT8 ROADNET TRANSMIT
ALMISPY CHOCOLA FASHION JNEXT NITTROAD ROCK TRAVERSE
AMBM CITY2 FAST2 JOKER1 NOSQ ROCKETS TRGRID
AMR10C CIVIL FAVDICE JRIDE NOTATRI ROHAAN TRICENTR
AMR10G CLONE FCANDY JULKA NOVICE43 ROIM TRICOUNT
AMR11B CLOPPAIR FCTRL KBASEEN NOVICE62 ROMAN TRIGALGE
AMR11E CLSLDR FCTRL2 KFRIENDS NOVICE63 ROOTCIPH TRIKA
AMR12D CLTZ FCTRL4 KFSTB NPC2016A ROULETTD TRT
AMR12G CMPLS FENCE1 KGSS NPC2016C RPLA TSHOW1
AMSCO1 CNEASY FESTIVAL KIMO1 NPC2016E RPLB TUG
AMZRCK CNTINDX FIBOSUM KMOVES NR2 RPLC TWENDS
AMZSEQ CODEIT03 FIBTWIST KNGCHECK NSTEPS RPLD TWOSQRS
ANADIV CODERE3 FLWRS KNJIGE NSYSTEM RPLE UCF
ANAGCD CODESPTB FONTSIZE KOILINE NUMPLAY RPLH UCV2013A
ANAGR COEF FRNDCIRC KONSTRAKSCHION NY10A RPLN UCV2013C
ANARC05B COINS FTHEELF KOPC12B NY10E RPS UCV2013D
ANARC05I COINTOSS FUNPROB KOSPC13B OAE RPSSL UCV2013E
ANARC08B COMDIV GALAXY KOZE OFFSIDE RPSWAR UCV2013F
ANARC08D CONGA GAMARENA KSELECT OFORTUNE RRSCHED UCV2013H
ANARC08G CONHONPR GAME3 KULE OHANIBTR RTREE UCV2013I
ANARC08H COURAGE GAMECG LABYR1 OLOLO SA04C UCV2013J
ANARC09A COWCAR GAMES LARSUBP ONEXLIS SAMER08E UJ
ANARC09B CPCRC1C GARDENAR LASTDIG ONEZERO SAMER08F ULM02C
ANARC09C CPRMT GCD2 LASTDIG2 ONP SAMER08G UOFTAB
AP2 CRAN01 GCPC11F LCPC12E OPBIT SANTA3 UOFTAC
AP3 CRCLE_UI GEEKOUNT LCPC12F OPCPIZZA SBANK UOFTAD
APPROB CRDS GEOM LENGFACT PAINTBLK SBETS UOFTAE
APS CRSCNTRY GEOPROB LIFERACE PALIN SBSTR1 UOFTAF
ARCHI CRYPTO GIRLSNBS LKS PANCAKES SCPC11A UOFTBB
ARITH CRYPTO1 GLJIVE LOCKER PARCARD1 SCPC11B UOFTBD
ARITH2 CRYPTO2 GNY07H LOOPEXP PARKET1 SCPC11F UOFTBE
ARMY CRYPTO3 GNYR09F LQDCANDY PARTY SCPC11G UPDATEIT
ARRAYSUB CSTREET GOALFR M00PAIR PB SCUBADIV VECTAR11
ARRHUDAI CT16E GOODB M3TILE PBCGAME SECTORS VERODOOM
ASCDFIB CTRICK GOODD MADN PCPC12E SEGFAULT VFMUL
ASSIGN CUBARTWK GOODE MAGIC4 PCPC12F SELFDESN VHELSING
ASSIST CUBE GOODF MAIN113 PEBBLE SHAHBG VIENTIAN
ATOMS CUBEFR GOPI_SW MAIN12A PEGS SHANGUL VOLNTEER
AU7_5 CUBES GP1 MAIN12B PERMUT1 SHELL VPL0_A
BABTWR CVJETICI GPA1 MAIN74 PERMUT2 SHOP VPL1_AA
BACKPACK CWORLD GRAFFTRI MAIN8_C PFND SHPATH VPL1_AB
BAD CYLINDER GRAPH2 MAIN8_D PFOLD SICRANO VPL2_AA
BAISED CZ_PROB1 GREAT_E MAJOR PFORLOOP SID VPL2_AC
BALIFE DANCE GSS1 MAJSTOR PHONELST SILVER VPL2_AD
BANDW DANGER GSS3 MAKESUM PHT SIMPGAME VPL2_BC
BANKROB DCEPC11B GUANGGUN MANGOES PIGBANK SKY VUDBOL5
BANSTAND DCEPC11F GUERNICA MANJFIRE PIHEX2 SKYLINE VUDBOL7
BASE DCEPC12B GUESSING MARBLES PIR SNGGW WA
BC DCEPC12E GUESSLNK MARIO2 PIRACON SNGLOOP1 WACHOVIA
BEADS DCEPC12F GUESSN3 MATSUM PLAYGAME SNGMSG WALL
BEENUMS DCEPC14C GUESSTHE MAXGRITH POLEVAL SNGPG WATER
BFPRMCYC DCEPC14G GUMATH2 MAXLN PON SNIM WEIGHT
BFROTATE DCEPC206 HACKRNDM MAX_NUM PONY1 SNIPE WILLITST
BFTAB DCEPC504 HANDS MAY99_2 PONY3 SOLDIERS WINDVANE
BFTRI DCEPC505 HANGOVER MAY99_3 PONY8 SORTING WINSTRAT
BILLIARD DCES HAPPYTL MAY99_4 PONY9 SPEED WORDCNT
BINSTIRL DCRYPT HASHIT MAYA PORTALUN SPIDY WORDS1
BIO1 DECOY HC MAYCA POSAO SPIKES WORKB
BISHOPS DERP HC12 MB1 POUR1 SPLITS WPC4F
BITMAP DEV_CP HCT00001 MBALL POWERUP SPRING WPC5D
BITPLAY DGAME HEADSHOT MBEEWALK POWTOW SQRBR WPC5I
BLINNET DIEHARD HELPDONN MBR PPATH SQUAREV1 WTK
BLOCK_D DIG HEPNUM MC PQUEUE STACKOFBOXES WWAKER
BLOPER DIGNUM HEXBOARD MCAMP PRESIDEN STAMPS XMAX
BLOPER2 DIGOKEYS HIGHWAYS MCHAOS PRIME1 STICKS XUDOKU
BOARD1 DISTO HISTOGRA MCLB PRINT STK YAPP
BOGGLE DISUBSTR HOLIDAY2 MCOINS PRISMSA STPAR YELBRICK
BOMARBLE DIV15 HOMEW MECGROUP PRLOVE STRAWB YODANESS
BOPERISH DIVISION HORRIBLE MFLAR10 PRMQUER STREETR YUMMY
BOWLING1 DIXIE001 HOTELS MICEMAZE PROBLEM4 STRGAMB ZSUM
BRCKTS DOJO HPPROF MIDEARTH PROSCORE SUBSHARD
BRDGHRD DONALDO HPYNOS MIDO PSWITCH SUBSN
BRIDGE DOTAA HPYNOSII MINCOUNT PSYCHO3 SUBST1
BRODOVI DQUERY HUBULLU MINI PSYCHON SUMFOUR
BROUL DRINK HXH MINNUM PSYCHOT SUMITR
BSHEEP DSUBSEQ ICAMPSEQ MISERMAN PT07X SUMSUM

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 THINKING