<p>Given an array of strings <code>words</code> and a width <code>maxWidth</code>, format the text such that each line has exactly <code>maxWidth</code> characters and is fully (left and right) justified.</p> <p>You should pack your words in a greedy approach; that is, pack as many words as you can in each line. Pad extra spaces <code>' '</code> when necessary so that each line has exactly <code>maxWidth</code> characters.</p> <p>Extra spaces between words should be distributed as evenly as possible. If the number of spaces on a line does not divide evenly between words, the empty slots on the left will be assigned more spaces than the slots on the right.</p> <p>For the last line of text, it should be left-justified and no extra space is inserted between words.</p> <p><strong>Note:</strong></p> <ul> <li>A word is defined as a character sequence consisting of non-space characters only.</li> <li>Each word's length is guaranteed to be greater than 0 and not exceed maxWidth.</li> <li>The input array <code>words</code> contains at least one word.</li> </ul> <p> </p> <p><strong>Example 1:</strong></p> <pre> <strong>Input:</strong> words = ["This", "is", "an", "example", "of", "text", "justification."], maxWidth = 16 <strong>Output:</strong> [ "This is an", "example of text", "justification. " ]</pre> <p><strong>Example 2:</strong></p> <pre> <strong>Input:</strong> words = ["What","must","be","acknowledgment","shall","be"], maxWidth = 16 <strong>Output:</strong> [ "What must be", "acknowledgment ", "shall be " ] <strong>Explanation:</strong> Note that the last line is "shall be " instead of "shall be", because the last line must be left-justified instead of fully-justified. Note that the second line is also left-justified becase it contains only one word.</pre> <p><strong>Example 3:</strong></p> <pre> <strong>Input:</strong> words = ["Science","is","what","we","understand","well","enough","to","explain","to","a","computer.","Art","is","everything","else","we","do"], maxWidth = 20 <strong>Output:</strong> [ "Science is what we", "understand well", "enough to explain to", "a computer. Art is", "everything else we", "do " ]</pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= words.length <= 300</code></li> <li><code>1 <= words[i].length <= 20</code></li> <li><code>words[i]</code> consists of only English letters and symbols.</li> <li><code>1 <= maxWidth <= 100</code></li> <li><code>words[i].length <= maxWidth</code></li> </ul>