<p>Given two string arrays <code>word1</code> and <code>word2</code>, return<em> </em><code>true</code><em> if the two arrays <strong>represent</strong> the same string, and </em><code>false</code><em> otherwise.</em></p> <p>A string is <strong>represented</strong> by an array if the array elements concatenated <strong>in order</strong> forms the string.</p> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> word1 = ["ab", "c"], word2 = ["a", "bc"] <strong>Output:</strong> true <strong>Explanation:</strong> word1 represents string "ab" + "c" -> "abc" word2 represents string "a" + "bc" -> "abc" The strings are the same, so return true.</pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> word1 = ["a", "cb"], word2 = ["ab", "c"] <strong>Output:</strong> false </pre> <p><strong>Example 3:</strong></p> <pre> <strong>Input:</strong> word1 = ["abc", "d", "defg"], word2 = ["abcddefg"] <strong>Output:</strong> true </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= word1.length, word2.length <= 10<sup>3</sup></code></li> <li><code>1 <= word1[i].length, word2[i].length <= 10<sup>3</sup></code></li> <li><code>1 <= sum(word1[i].length), sum(word2[i].length) <= 10<sup>3</sup></code></li> <li><code>word1[i]</code> and <code>word2[i]</code> consist of lowercase letters.</li> </ul>