摘要：
1009 Product of Polynomials (25分) This time, you are supposed to find A×B where A and B are two polynomials. Input Specification: Each input file cont 阅读全文
摘要：
1003 Emergency (25分) As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities 阅读全文