题解 | #实现四舍五入#
实现四舍五入
https://www.nowcoder.com/practice/020a0cf673174d5795d97ae79cff59a0
#include <iostream> using namespace std; int main() { double a; cin>>a; int flag=1; if(a<0){ flag=-1; a=-a; } int b=a/1; double c=a-b; if(c<0.5){ a=(int)a; }else{ a=(int)a+1; } cout<<flag*a<<endl; return 0; }