2021年9月2日
1016 Phone Bills (25 分)
摘要： A long-distance telephone company charges its customers by the following rules: Making a long-distance call costs a certain amount per minute, dependi 阅读全文
posted @ 2021-09-02 23:30 白玉神驹 阅读(53) 评论(0) 推荐(0)