Introduction to Python

Factorial

The factorial of an integer n is defined as the product of all the integers from 1 up to n.
Write a program that given a single integer n, would print the result of n! in the output.
Input
Output
1
1
5
120
0
1
 

Constraints

Time limit: 1 seconds

Memory limit: 512 MB

Output limit: 1 MB

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