Factorial Function

Write a function long long factorial(int n) that returns n! (the product of all integers from 1 to n). The factorial of 0 is 1.

For factorial(5) the program prints 120.

Expected Output:

120↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

Functions

Code Editor

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Your Output

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Test Cases

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