<p>You are given two <strong>sorted</strong> arrays of distinct integers <code>nums1</code> and <code>nums2.</code></p> <p>A <strong>valid<strong><em> </em></strong>path</strong> is defined as follows:</p> <ul> <li>Choose array <code>nums1</code> or <code>nums2</code> to traverse (from index-0).</li> <li>Traverse the current array from left to right.</li> <li>If you are reading any value that is present in <code>nums1</code> and <code>nums2</code> you are allowed to change your path to the other array. (Only one repeated value is considered in the valid path).</li> </ul> <p>The <strong>score</strong> is defined as the sum of uniques values in a valid path.</p> <p>Return <em>the maximum score you can obtain of all possible <strong>valid paths</strong></em>. Since the answer may be too large, return it modulo <code>10<sup>9</sup> + 7</code>.</p> <p> </p> <p><strong>Example 1:</strong></p> <img alt="" src="https://assets.leetcode.com/uploads/2020/07/16/sample_1_1893.png" style="width: 500px; height: 151px;" /> <pre> <strong>Input:</strong> nums1 = [2,4,5,8,10], nums2 = [4,6,8,9] <strong>Output:</strong> 30 <strong>Explanation:</strong> Valid paths: [2,4,5,8,10], [2,4,5,8,9], [2,4,6,8,9], [2,4,6,8,10], (starting from nums1) [4,6,8,9], [4,5,8,10], [4,5,8,9], [4,6,8,10] (starting from nums2) The maximum is obtained with the path in green <strong>[2,4,6,8,10]</strong>. </pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> nums1 = [1,3,5,7,9], nums2 = [3,5,100] <strong>Output:</strong> 109 <strong>Explanation:</strong> Maximum sum is obtained with the path <strong>[1,3,5,100]</strong>. </pre> <p><strong>Example 3:</strong></p> <pre> <strong>Input:</strong> nums1 = [1,2,3,4,5], nums2 = [6,7,8,9,10] <strong>Output:</strong> 40 <strong>Explanation:</strong> There are no common elements between nums1 and nums2. Maximum sum is obtained with the path [6,7,8,9,10]. </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= nums1.length, nums2.length <= 10<sup>5</sup></code></li> <li><code>1 <= nums1[i], nums2[i] <= 10<sup>7</sup></code></li> <li><code>nums1</code> and <code>nums2</code> are strictly increasing.</li> </ul>