1799. Maximize Score After N Operations

You are given nums, an array of positive integers of size 2 * n. You must perform n operations on this array. In the ith operation (1-indexed), you will: - Choose two elements, x and y. - Receive a score of i * gcd(x, y). - Remove x and y from nums. Return the maximum score you can receive after performing n operations. The function gcd(x, y) is the greatest common divisor of x and y. Exa