scanf

`scanf` is a function used in programming to read input from the user through the keyboard. When a program reaches a `scanf` statement, it pauses and waits for the user to type some data. Once the user inputs information and presses Enter, `scanf` captures that input and stores it in a variable for later use within the program. It allows programs to interact dynamically with users, enabling them to customize behavior based on the input received. Essentially, `scanf` acts as a bridge between the user and the program’s internal variables.