An expression combines data items or operands through operators so that a value can be computed or assigned.
Programming in C MCQ - In-built Functions
x = a*b-c; is the valid expression shown in the presentation. It combines multiplication and subtraction and assigns the resulting value to x.
The right-hand expression is evaluated first, and its resulting value is assigned to the variable on the left side of the assignment operator.
Blank spaces around operators are generally optional in such expressions. Adding spaces can make source code easier to read without changing the expression's intended operation.
printf() is used for formatted output. It can display text and values according to format specifications, whereas scanf() is used for formatted input.
