CANHHUYEN C++

#include <bits/stdc++.h>
using namespace std;
 
int b,c,d;
float a;
int main()
{
    cin>>b>>c;
    d=b*b+c*c;
    a=sqrt(d);
    cout<<fixed <<setprecision(2);
    cout<<"Do dai canh huyen la "<<a;
}