题解 | #取近似值#
取近似值
http://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
重点
获取小数部分和整数部分
using namespace std;
int main()
{
double n;
while(cin>>n)
{
int zhengshu = int(n);
double xiaoshu = n-zhengshu;
if(xiaoshu>=0.5)
{
zhengshu++;
}
cout<<zhengshu<<endl;
}
}