摘要:
In our daily life we often use 233 to express our feelings. Actually, we may say 2333, 23333, or 233333 ... in the same meaning. And here is the quest 阅读全文
摘要:
Codeforces Round #226 (Div. 2) E. Bear in the Field time limit per test 1 second memory limit per test 256 megabyte Our bear's forest has a checkered 阅读全文