//加0.5再进行强制类型转换即可
#include<iostream> using namespeace std; int main(){ double a; cin >> a; cout << int(a + 0.5) << endl; return 0; }
//加0.5再进行强制类型转换即可
#include<iostream> using namespeace std; int main(){ double a; cin >> a; cout << int(a + 0.5) << endl; return 0; }