basic data types in c++ hackerrank solution
#include <iostream>
using std::cin;
using std::cout;
using std::endl;
using std::fixed;
int main() {
int a; long b; char c; float d; double e;
cin>>a>>b>>c>>d>>e;
cout<<a<<endl;
cout<<b<<endl;
cout<<c<<endl;
cout.precision(3);
cout<<fixed<<d<<endl;
cout.precision(9);
cout<<fixed<<e<<endl;
return 0;
}