摘要：
题目链接： D. Bear and Polynomials time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output time limit 阅读全文
摘要：
题目链接： C. Bear and Forgotten Tree 3 time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output time 阅读全文
摘要：
题目链接： B. Bear and Displayed Friends time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output time 阅读全文
摘要：
题目链接： A. Bear and Reverse Radewoosh time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output time 阅读全文