摘要：D. Count Good Substringstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputWe call a stringgood, if... 阅读全文

摘要：B. Mushroom Scientiststime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAs you very well know, the... 阅读全文