Package g1301_1400.s1354_construct_target_array_with_multiple_sums

Class Solution

java.lang.Object
g1301_1400.s1354_construct_target_array_with_multiple_sums.Solution
public class Solution extends java.lang.Object
1354 - Construct Target Array With Multiple Sums.

Hard

You are given an array target of n integers. From a starting array arr consisting of n 1’s, you may perform the following procedure :

  • let x be the sum of all elements currently in your array.
  • choose index i, such that 0 <= i < n and set the value of arr at index i to x.
  • You may repeat this procedure as many times as needed.

Return true if it is possible to construct the target array from arr, otherwise, return false.

Example 1:

Input: target = [9,3,5]

Output: true

Explanation: Start with arr = [1, 1, 1]

[1, 1, 1], sum = 3 choose index 1

[1, 3, 1], sum = 5 choose index 2

[1, 3, 5], sum = 9 choose index 0

[9, 3, 5] Done

Example 2:

Input: target = [1,1,1,2]

Output: false

Explanation: Impossible to create target array from [1,1,1,1].

Example 3:

Input: target = [8,5]

Output: true

Constraints:

  • n == target.length
  • 1 <= n <= 5 * 104
  • 1 <= target[i] <= 109

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    isPossible(int[] target)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • isPossible

      public boolean isPossible(int[] target)