题解 | #取近似值#

#include <iostream>
using namespace std;
int main() {
    float in,tmp;
    int out;
    cin>>in;
    tmp = in-int(in);
    if (tmp>=0.5) {
        out = 1+int(in);
    }
    else {
        out = int(in);
    }
    cout<<out;
}

就这样emmm没啥含金量，就这样吧，过！

#include<bits/stdc++.h>
using namespace std;
int main ()
{
    float f;
    cin >> f;
    cout << int(f + 0.5) << endl;
    return 0;
}