摘要：
The French author Georges Perec (1936�C1982) once wrote a book, La disparition, without the letter 'e'. He was a member of the Oulipo group. A quote f 阅读全文
摘要：
Given two sequences of numbers : a11, a22, ...... , aNN, and b11, b22, ...... , bMM(1 <= M <= 10000, 1 <= N <= 1000000). Your task is to find a number 阅读全文