Search⌘ K
AI Features

Solution: Construct Target Array With Multiple Sums

Explore an efficient algorithm to verify if a target array can be formed from an array of ones by reversing the operation using max heaps and modulo. Learn to reduce computational complexity by working backward, processing the largest element first, and handling edge cases for constructing dynamic data arrays.

Statement

You are given an array target of n integers.

Starting from an array arr of size n where every element is 1, you may perform the following operation any number of times:

  • Let x be the sum of all current elements in arr.

  • Pick an index i and set arr[i] = x.

Your task is to return True if it’s possible to construct target from arr, otherwise return False.

Constraints:

  • n == target.length

  • 11 \leq n 1000\leq 1000 ...