<p>Given an array <code>nums</code> of positive integers. Your task is to select some subset of <code>nums</code>, multiply each element by an integer and add all these numbers. The array is said to be <strong>good </strong>if you can obtain a sum of <code>1</code> from the array by any possible subset and multiplicand.</p> <p>Return <code>True</code> if the array is <strong>good </strong>otherwise return <code>False</code>.</p> <p> </p> <p><strong class="example">Example 1:</strong></p> <pre> <strong>Input:</strong> nums = [12,5,7,23] <strong>Output:</strong> true <strong>Explanation:</strong> Pick numbers 5 and 7. 5*3 + 7*(-2) = 1 </pre> <p><strong class="example">Example 2:</strong></p> <pre> <strong>Input:</strong> nums = [29,6,10] <strong>Output:</strong> true <strong>Explanation:</strong> Pick numbers 29, 6 and 10. 29*1 + 6*(-3) + 10*(-1) = 1 </pre> <p><strong class="example">Example 3:</strong></p> <pre> <strong>Input:</strong> nums = [3,6] <strong>Output:</strong> false </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= nums.length <= 10^5</code></li> <li><code>1 <= nums[i] <= 10^9</code></li> </ul>