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Problem: Construct Target Array With Multiple Sums

Medium
30 min
Explore how to determine if a target array can be constructed from an initial array of ones through repeated sum updates. Learn to apply heaps to efficiently manage dynamic sums and solve this problem. This lesson helps you develop problem-solving skills using heap data structures for array transformation challenges.

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

  • 11 \leq target[i] 105\leq 10^5

Problem
Ask
Submissions

Problem: Construct Target Array With Multiple Sums

Medium
30 min
Explore how to determine if a target array can be constructed from an initial array of ones through repeated sum updates. Learn to apply heaps to efficiently manage dynamic sums and solve this problem. This lesson helps you develop problem-solving skills using heap data structures for array transformation challenges.

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

  • 11 \leq target[i] 105\leq 10^5