C - Basics and Execution Environment
Which header file must be included to use the printf function in a C program?
Which header file must be included to use the printf function in a C program?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify the purpose of header files
Header files provide declarations for functions. To use printf, the program needs its declaration.Step 2: Match printf function to its header file
The printf function is declared in theheader file, which stands for standard input/output. Final Answer:
<stdio.h> -> Option BQuick Check:
Header for printf = <stdio.h> [OK]
Quick Trick: Use for input/output functions like printf [OK]
Common Mistakes:
- Using
instead of - Forgetting to include any header file
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