摘要：
A. Splitting in Teams A. Splitting in Teams There were n groups of students which came to write a training contest. A group is either one person who c 阅读全文
摘要：
if else 语句： 表达式 c = a if a > b else b: 二维列表： c = [b,a][a>b] c = (a > b and [a] or [b])[0] 输入n个数转换为list： a//b 反转：str[::-1] 阅读全文