<ul data-eligibleForWebStory="true"><li>Functions in C are essential for writing efficient code.</li><li>Syntax to declare a function includes return type, function name, and parameters.</li><li>The function contains the actual code or logic to be executed.</li><li>Function calls in C involve jumping to function definitions, executing them, and returning to the calling location.</li><li>Recursion in functions can be valuable but must be handled carefully to avoid infinite calls.</li></ul>

Functions in C: The Secret Sauce of Efficient Code!

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