#include <iostream> #include <iomanip> int main() { double d = 122.345; std::cout << std::fixed; std::cout << std::setprecision(2); std::cout << d; }
#include <iostream> #include <iomanip> using namespace std; int main() { float x=10.3445f; cout<<fixed<<setprecision(5)<<x<<endl; cout<<fixed<<setprecision(2)<<x<<endl; cout<<fixed<<setprecision(3)<<x<<endl; cout<<fixed<<setprecision(0)<<x<<endl; return 0; }