Walter Erquinigo

@a20012251

Peru

Joined Feb 2009

World Rank: #738 (35 points)

Institution: Pontificia Universidad Católica del Perú

Activity over the last year

Effectiveness

 Problems solved
171
 Solutions submitted
768

Problems

List of solved classical problems:

ABCDEF CADYDIST EDIT HIKE MINMOVE POTHOLE SPP
ACODE CAPRICA EPALIN HISTOGRA MIXTURES PRENDON SPRING
ACPC10F CERC07B EUROPEAN HNUMBERS MKTHNUM PRIME1 SQFREE
ACTIV CERC07K EXCLSEC HORRIBLE MMMGAME PRMLX SUBLEX
AGGRCOW CF25E EXPRESS INCDSEQ MORSE PROOT SUBST1
ALICESIE CHEATCON FASTFLOW INCSEQ MSE06H PSTRING SUBSUMS
ALIENS CHEESE FBRIDGES INTEGMAX MTOTALF PT07F SUB_PROB
AMOEBA CISTFILL FCTRL INUMBER MUDDY PT07X SUMFOUR
ANARC09A COCONUTS FIBOSUM IOIPALIN MULTQ3 PT07Y SWAPS
ANDROUND CODING2 FILRTEST JARA NDIVPHI QCJ3 TCUTTER
ANGELS COINS FINDSR KGSS NHAY QMAX3VN TOPOLAND
ARDA1 COMCB FREQUENT KITROB NICEDAY QTREE TRICOUNT
ASSIGN COUNTPAS FRNDS KPEQU OFFSTRAT QTREE2 TRT
ASSIST CPRMT FTHEELF KPMATRIX ONP QUEST4 TWOSQRS
AXIS CRDS GEN KQUERY ORDERS RAIN1 VHELSING
BABY CZ_PROB1 GERGOVIA LCMSUM ORDERSET RATING VMILI
BACKTPOL DERP GREENLAN LIGHTIN PAINTBLK RENT VOCV
BALIFE DESRUG GSS1 LIS2 PALDR SAMER08D WALKROBO
BALLSAG DISJPATH GSS3 LITE PERFUME SAMER08F WORDS1
BEADS DIVREL GSS4 LONGCS PERIOD SCITIES XOINC
BOTTOM DOORSPEN HACKERS MARBLES PERMUT1 SCUBADIV YELBRICK
BRCKTS DQUERY HALLOW MATCHING PERMUT2 SECSYS
BTTNS DRACULA HC MATSUM PLD SEQ
BUNNIES DRAWQUAD HELPR2D2 MDOLLS POLISH SNIPE
C1TABOVI EDDIST HEXBOARD MINIMAX PORTALUN SOLIT

TODO list of classical problems:

ALL CERC07C FRACTION LCS PAINTBLC SHPATH
ANARC08B CONTCITY GSS2 MELAR10 PGCD STABLEMP
BLINNET DIVSUM2 INTERVAL MSE07E POLQUERY STUN
CCOST DRIVE ITERBIT NAJKRACI PRIMPERM TEST
CEPC08B ENEM JOCTENIS NWERC11A RESOURCE TWOPATHS