1856. Maximum Subarray Min-Product

The min-product of an array is equal to the minimum value in the array multiplied by the array's sum. - For example, the array [3,2,5] (minimum value is 2) has a min-product of 2 * (3+2+5) = 2 * 10 = 20. Given an array of integers nums, return the maximum min-product of any non-empty subarray of nums. Since the answer may be large, return it modulo 109 + 7. Note that the min-product should be m