Package g0001_0100.s0068_text_justification

Class Solution

java.lang.Object
g0001_0100.s0068_text_justification.Solution
public class Solution extends java.lang.Object
68 - Text Justification.

Hard

Given an array of strings words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justified.

You should pack your words in a greedy approach; that is, pack as many words as you can in each line. Pad extra spaces ' ' when necessary so that each line has exactly maxWidth characters.

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.

For the last line of text, it should be left-justified and no extra space is inserted between words.

Note:

  • A word is defined as a character sequence consisting of non-space characters only.
  • Each word’s length is guaranteed to be greater than 0 and not exceed maxWidth.
  • The input array words contains at least one word.

Example 1:

Input: words = [“This”, “is”, “an”, “example”, “of”, “text”, “justification.”], maxWidth = 16

Output: [ “This is an”, “example of text”, "justification. " ]

Example 2:

Input: words = [“What”,“must”,“be”,“acknowledgment”,“shall”,“be”], maxWidth = 16

Output: [ “What must be”, "acknowledgment ", "shall be " ]

Explanation: 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.

Example 3:

Input: words = [“Science”,“is”,“what”,“we”,“understand”,“well”,“enough”,“to”,“explain”,“to”,“a”,“computer.”,“Art”,“is”,“everything”,“else”,“we”,“do”], maxWidth = 20

Output: [ “Science is what we”, “understand well”, “enough to explain to”, “a computer. Art is”, “everything else we”, "do " ]

Constraints:

  • 1 <= words.length <= 300
  • 1 <= words[i].length <= 20
  • words[i] consists of only English letters and symbols.
  • 1 <= maxWidth <= 100
  • words[i].length <= maxWidth

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.util.List<java.lang.String>
    fullJustify(java.lang.String[] words, int maxWidth)
     

    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

    • fullJustify

      public java.util.List<java.lang.String> fullJustify(java.lang.String[] words, int maxWidth)