Practice: PLZLYKME, ERROR, FGFS, MTRICK, TAPAIR, FRBSUM, CHNGSS, XORSUMS
LTIME20: LCH15JAB, LCH15CD, LCH15JEF, LCH15JGH
CDVA2015: CDVA1502, CDVA1510, CDVA1507, CDVA1508, CDVA1505, CDVA1504
CODC2015: CSIXIERL, CSIXIEAN, CSIXIEPA, CSIXIEVR
LTIME22: CHEFANUP
COOK80: ROBOTG, CARDS777, RAINBOW
ALKH2017: XORPRO, CHEFGRUP, SHEBRU, INCDEC
IOPC2017: IOPC17C, IOPC17A, IOPC17D, IOPC17B
COOK81: ABREPEAT, CANDY123, SHOPTRIP
LTIME47: SEGM01, BEARSEG, DIGVIRUS
LTIME48: PREFINVS