摘要:
描述 Mr. B is a famous music composer. One of his most famous work was his set of preludes. These 24 pieces span the 24 musical keys (there are musicall 阅读全文
摘要:
Quick Brown Fox时间限制: 1 Sec 内存限制: 128 MB 题目描述 A pangram is a phrase that includes at least one occurrence of each of the 26 letters, ‘a’. . .‘z’. You’r 阅读全文