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Problem: Construct Target Array With Multiple Sums

hard
40 min
Understand how to use heaps to verify if a target array can be constructed from an initial array of ones by repeatedly replacing elements with the sum of the array. This lesson teaches dynamic problem solving and efficient heap operations to solve complex 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

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Tap here to switch tabs
Problem
Submissions

Problem: Construct Target Array With Multiple Sums

hard
40 min
Understand how to use heaps to verify if a target array can be constructed from an initial array of ones by repeatedly replacing elements with the sum of the array. This lesson teaches dynamic problem solving and efficient heap operations to solve complex 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

Unlock AI-Powered LearningUpgrade to smarter learning with instant explanations of Ask Agent, Personalized Interview Prep, Real-World Projects, 3 AI Mock Interviews per month, and Personalized Paths