public class Solution
extends 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