题解 | #取近似值#
取近似值
http://www.nowcoder.com/practice/3ab09737afb645cc82c35d56a5ce802a
round()函数不就是四舍五入嘛
#include<bits/stdc++.h> using namespace std; int main() { double num; cin>>num; cout<<round(num)<<endl; return 0; }