摘要：
Give you a lot of positive integers, just to find out how many prime numbers there are. Input There are a lot of cases. In each case, there is an inte 阅读全文
摘要：
You just need to calculate the sum of the formula: 1^2+3^2+5^2+……+ n ^2. InputIn each case, there is an odd positive integer n.OutputPrint the sum. Ma 阅读全文