How to take input 128 bit unsigned integer in c++

Question

I am new to c++. I want to take input a unsigned 128 bit integer using scanf and print it using printf. As I am new to c++ , I only know these two methods for input output. Can someone help me out?

Answer 1

You could use boost, but this library set must be installed yourself:

#include <boost/multiprecision/cpp_int.hpp>
#include <iostream>

int main()
{
   using namespace boost::multiprecision;

   uint128_t v = 0;

   std::cin >> v; // read 
   std::cout << v << std::endl; // write

   return 0;
}