What is flag in c programming?

In C Programming, a flag is a variable, often of type int or bool, used to indicate a specific condition or state within a program. Flags are commonly employed in control flow to signal whether certain conditions have been met, such as the success or failure of an operation. They can also control the execution of loops or conditional statements. For example, a flag might be set to 1 (true) when an error occurs, allowing the program to handle the error appropriately.