摘要:
codeforces #578(Div.2) A. Hotelier Amugae has a hotel consisting of 1010 rooms. The rooms are numbered from 00 to 99 from left to right. The hotel has 阅读全文
摘要:
codeforces #577(Div.2) A Important Exam A class of students wrote a multiple-choice test. There are nn students in the class. The test had mm question 阅读全文