摘要：
题目描述 In computer science, a character is a letter, a digit, a punctuation mark or some other similar symbol. Since computers can only process numbers, 阅读全文
摘要：
题目描述 Let us define a sequence as belowYour job is simple, for each task, you should output Fn module 109+7. 输入 The first line has only one integer T, 阅读全文