Increment and Decrement Operators C++ provides two Unary Operators for incrementing and decrementing variables values by 1. Increment Operator ++ Decrement Operator  — These Operators operate on one Operand and used in two modes. 1)      Postfix Mode 2)      Prefix Mode Postfix Mode: When increment and Decrement operator appear after the operands, the corresponding operation is called Postfix Increment and Postfix Decrement. Postfix increment and decrement are performed on the basis of...