C Program To Find nPr Factorial

https://technotip.com/8206/c-program-to-find-npr-factorial/

Lets write a C Program to Find nPr Factorial for the user input values of n and r.

In this video tutorial we are showing iterative logic, recursive logic and how to write single line of code for getting factorial using recursion and ternary/conditional operator.

Formula To Calculate nPr Factorial nPr = n! / (n-r)!;

Definition: The number of possibilities for choosing an ordered set of r objects(a permutation) from a total of n objects.

Very Important Note: n value should always be greater than value of r. Because, for example, we can get 2 out of 6. But we can’t get 6 out of 2. i.e., the main set should always be greater than the subset.

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