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:
x and y.i * gcd(x, y).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.
\n
Example 1:
\n\n\nInput: nums = [1,2]\nOutput: 1\nExplanation: The optimal choice of operations is:\n(1 * gcd(1, 2)) = 1\n\n\n
Example 2:
\n\n\nInput: nums = [3,4,6,8]\nOutput: 11\nExplanation: The optimal choice of operations is:\n(1 * gcd(3, 6)) + (2 * gcd(4, 8)) = 3 + 8 = 11\n\n\n
Example 3:
\n\n\nInput: nums = [1,2,3,4,5,6]\nOutput: 14\nExplanation: The optimal choice of operations is:\n(1 * gcd(1, 5)) + (2 * gcd(2, 4)) + (3 * gcd(3, 6)) = 1 + 4 + 9 = 14\n\n\n
\n
Constraints:
\n\n1 <= n <= 7nums.length == 2 * n1 <= nums[i] <= 106Compiled with clang 11 using the latest C++ 20 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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