long long max c++ code example

Example 1: maximum int c++

#include 

int imin = std::numeric_limits::min(); // minimum value
int imax = std::numeric_limits::max(); // maximum value (2147483647)

Example 2: int max in c++

2147483647
  unsigned long long int = 18 446 744 073 709 551 615

Example 3: C largest unsigned int

The sizeof function will help you here.
  sizeof(data type) returns a size_t //Number of bytes whatever the input for sizeof takes

Example:
//This statement will return 2 or 4 (depending on your system)
  return sizeof(int)