functools.reduce — Running Product

Implement solve(numbers) using only functools.reduce (no loops) that returns the product of all elements in numbers.

If numbers is empty, return 1 (identity element for multiplication).

Examples

• solve([1, 2, 3, 4]) → 24
• solve([5]) → 5
• solve([]) → 1
• solve([2, 0, 5]) → 0

Constraints

• Must use functools.reduce.
• No explicit for/while loops.

In JavaScript / TypeScript — Use Array.prototype.reduce with an initial value of 1 — no loops.