Practice: SUBSPLAY, CHNGIT, MINEAT, MAXARXOR, ALTERNATEDIV
OCT19B: MSV
FEB20B: SNUG_FIT, CASH, THEATRE, NOCHANGE
APRIL20B: UNITGCD, STRNO, SQRDSUB
CCOD2020: MOTU001
COOK117B: LIFTME
LTIME83B: FFL
MAY21B: XOREQUAL
DEC21C: UTKPLC, LISTLIST, ROPASCI
MARCH221C: SUBSTRING
MARCH222C: MINSUB