Type: Default 1000ms 256MiB

苹果和虫子

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说明

你买了一箱nn个苹果,很不幸的是买完时箱子里混进了一条虫子。虫子每xx小时能吃掉一个苹果,假设虫子在吃完一个苹果之前不会吃另一个,那么经过yy小时你还有多少个完整的苹果?

输入格式

输入仅一行,包括nnxxyy(均为整数)。

输出格式

输出也仅一行,剩下的苹果个数。

样例

10 4 9
7

编程基础班测试

Not Attended
Status
Done
Rule
ACM/ICPC
Problem
8
Start at
2023-9-10 13:00
End at
2023-9-10 14:15
Duration
1.3 hour(s)
Host
Partic.
9