c++ declare binary number

To declare a binary number in C++, you can use the prefix "0b" followed by the binary digits. Here's an example:

int binaryNumber = 0b101010;


  • int is the data type used to declare an integer variable.
  • binaryNumber is the name given to the variable.
  • 0b is the prefix that indicates that the following digits are in binary format.
  • 101010 is the binary representation of the number you want to assign to binaryNumber.

By using the prefix "0b" before the binary digits, you tell the compiler that the number is in binary format, and it will be converted to its decimal equivalent when assigned to the binaryNumber variable.