In mathematics, the factorial of a positive integer n, denoted as n! , is the product of all positive integers less than or equa

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2 months ago

10

In mathematics, the factorial of a positive integer n, denoted as n! , is the product of all positive integers less than or equa

l to n.
The factorial of n can be computed using the following rules.

Case I: If n is 1, then the factorial of n is 1.
Case II: If n is greater than 1, then the factorial of n is equal to n times the factorial of (n - 1).
The factorial method returns the factorial of n, as determined by case I and case II. Write the factorial method below. You are encouraged to implement this method recursively.

/** Precondition: n is between 1 and 12, inclusive.

* Returns the factorial of n, as described in part (a).

*/

public static int factorial(int n)

Computers and Technology

2 answers:

oksian1 [950] · Answer 1 · 2026-03-25T18:36:50+03:00

public static int factorial(int n) { if (n >= 1 && n <=12) { if (n == 1) return 1; else return n * factorial(n - 1); } else return -1; } Explanation: The factorial method takes a single integer n as input. It checks if n is within the range of 1 to 12. If it is, it further checks if n equals 1. If it is indeed 1, it returns 1 as the factorial. Otherwise, it recursively calls itself with n decreased by 1, multiplying the result by n. If n is outside this range, the method returns -1 indicating the input is invalid.

8_murik_8 [964] · Answer 2 · 2026-03-25T18:36:18+03:00

8_murik_8 [964]2 months ago

4 0

public static int factorial(int n) { if (n <= 1) { return 1; } else if (n > 1 && n <= 12) { return n * factorial(n - 1); } } int main() { printf("Enter a value:"); scanf("%d", &n); printf("Factorial of %d is %d\n", n, factorial(n)); return 0; }