C Program To Find nCr Factorial
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Lets write a C Program to Find nCr 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 nCr Factorial
nCr = n! / (r! * (n-r)!);
Definition:
The number of different, unordered combination of r objects from a set of n objects is called nCr Factorial of n and r.
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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