摘要： System of Equationstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputFurik loves math lessons very much, so he doesn't attend them, unlike Rubik. But now Furik wants to get a good mark for math. For that Ms. Ivanova, his math teacher, gave him 阅读全文

摘要： Scheduletime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAt the beginning of the new semester there is new schedule in the Berland State University. According to this schedule,ngroups have lessons at the room 31. For each group the starting time o 阅读全文