Package g1201_1300.s1250_check_if_it_is_a_good_array

Class Solution

java.lang.Object
g1201_1300.s1250_check_if_it_is_a_good_array.Solution
public class Solution extends java.lang.Object
1250 - Check If It Is a Good Array.

Hard

Given an array nums of positive integers. Your task is to select some subset of nums, multiply each element by an integer and add all these numbers. The array is said to be **good **if you can obtain a sum of 1 from the array by any possible subset and multiplicand.

Return True if the array is **good **otherwise return False.

Example 1:

Input: nums = [12,5,7,23]

Output: true

Explanation: Pick numbers 5 and 7. 5*3 + 7*(-2) = 1

Example 2:

Input: nums = [29,6,10]

Output: true

Explanation: Pick numbers 29, 6 and 10. 29*1 + 6*(-3) + 10*(-1) = 1

Example 3:

Input: nums = [3,6]

Output: false

Constraints:

  • 1 <= nums.length <= 10^5
  • 1 <= nums[i] <= 10^9

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    isGoodArray(int[] nums)
     

    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

    • isGoodArray

      public boolean isGoodArray(int[] nums)