【google apec 20151a, 1b, 1c】 七段码,找奇路径或环,切割矩形; n数填m空组合数,倒酒杯,三连扑克消除,第k括号序列;挖矿、+*计算器、俄罗斯方块
ROUND1AProblemA. Seven-segmentDisplayTomisaboywhosedreamistobecomeascientist,heinventedalotinhissparetime.Hecameupwithagreatideaseveraldaysago:tomakeastopwatchbyhimself!Soheboughtaseven-segmentdisplay