List any five built-in functions and explain any two of them.

08 c]List any five built-in functions and explain any two of them.

Answer:-

1. printf()
2. scanf()
3. puts()
4. gets()

printf() :-

• In C programming language, printf() function is used to print the (“character, string, float, integer, octal and hexadecimal values”) onto the output screen.

• We use printf() function with %d format specifier to display the value of an integer variable.

scanf() :-

• In C programming language, scanf() function is used to read character, string, numeric data from keyboard
• Consider below example program where user enters a character. This value is assigned to the variable “ch” and then displayed.