Basic Syntax & Structure

Every C source file is a collection of function definitions. The entry point is int main(void) (or int main(int argc, char *argv[])).

Key syntax rules:

• Statements end with a semicolon ;.
• Blocks are inside curly braces {}.
• Comments: // line comment and /* block comment */.
• The language is case‑sensitive.

int main(void) {
    // code goes here
    return 0;
}