题解 | #实现四舍五入#
实现四舍五入
https://www.nowcoder.com/practice/020a0cf673174d5795d97ae79cff59a0
#include <iostream> #include<cmath> using namespace std; int main() { float a; cin>>a; if(fmod(a,1)>=0.5) { cout<<int(a)+1<<endl; } else if(fmod(a,1)<=-0.5) { cout<<int(a)-1<<endl; } else{ cout<<int(a)<<endl; } }