#N. 四舍五入

Type: Default

1000ms

256MiB

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Background

土拨鼠乐乐最近正在学习数学中的四舍五入, 你能帮她给出正确答案吗?

给你一个小数, 你需要对整数位进行四舍五入.

1个实数x, $0\le x \le 10$ .

一个整数, 表示四舍五入后的结果

1.2

1s, 1024KiB for each test case.