68. Text Justification

 

 

 

 

it teaches you in the real world. Programmers are always been ask to deal with dirty works.

 

 

Besides detail-oriented mindset, I think this question also tests if the candidate is able to write maintainable and readable code that handles many cases. Most of the solutions I saw in this forum just put everything in the same method... this is really bad, you won't know what each part does if you look at your code after some time, and changing any part of it is a pain. Why not at least write a few helper functions like "getSpaces", "leftJustify", "justify" to make the code more structured? This is good not only for your work, but also for the interview since you can skip writing the code for some functions by just verbally explaining it and thus save much time.

 

 

 

https://www.cnblogs.com/yrbbest/p/4436432.html

 

 

https://www.youtube.com/watch?v=RORuwHiblPc

 

 

http://www.cnblogs.com/grandyang/p/4350381.html

 

http://bangbingsyb.blogspot.com/2014/11/leetcode-text-justification.html

 

 

 

Given an array of words and a width maxWidth, format the text such that each line has exactly maxWidthcharacters 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 do 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                  "
]