Practice: REVSORT, APGRID, GCDANDLCM, XORK
START41D: CBSPEED, CCHOCOLATES, WINNERR, INCREAR, ISPAR, PATHPAR, REMOVEADD, DEARRANGE
START42D: AGELIMIT, EQUALDIST, MODULO3, MINFLIPS, HOWMANYMAX, MINORMAX, MAXIMISEBITS, CAARRAY, SORTRRAY
JUNE221C: RED0, EXMV, FPE, SUBSCRIBE_, ALTERADD, EQUALSTRING, DIVBYI, DISTGCD, ADDBYPERM, CHAIRS_
START43B: DISPAL, MAKEQUAL, PERMAND, OPTPAIRS, ARRAYSORTING, LMINE