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41 lines
837 B
41 lines
837 B
4 years ago
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## find_factorial
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### Instruccions
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Complete the function `factorial` to return the factorial of a given number
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### Expected Function
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```rust
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pub fn factorial(num: u64) -> u64 {
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}
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```
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### Usage
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Here is a possible program to test your function :
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```rust
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use find_factorial::factorial;
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fn main() {
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println!("The factorial of 0 = {}", factorial(0));
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println!("The factorial of 1 = {}", factorial(1));
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println!("The factorial of 5 = {}", factorial(5));
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println!("The factorial of 10 = {}", factorial(10));
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println!("The factorial of 19 = {}", factorial(19));
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}
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```
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And its output:
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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The factorial of 0 = 1
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The factorial of 1 = 1
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The factorial of 5 = 120
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The factorial of 10 = 3628800
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The factorial of 19 = 121645100408832000
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student@ubuntu:~/[[ROOT]]/test$
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```
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