Text Justification LeetCode Programming Solutions | LeetCode Problem Solutions in C++, Java, & Python [💯Correct]

Hello Programmers/Coders, Today we are going to share solutions to the Programming problems of LeetCode Solutions in C++, Java, & Python. At Each Problem with Successful submission with all Test Cases Passed, you will get a score or marks and LeetCode Coins. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for the Text Justification in C++, Java & Python-LeetCode problem. We are providing the correct and tested solutions to coding problems present on LeetCode. If you are not able to solve any problem, then you can take help from our Blog/website.

Use “Ctrl+F” To Find Any Questions Answer. & For Mobile User, You Just Need To Click On Three dots In Your Browser & You Will Get A “Find” Option There. Use These Option to Get Any Random Questions Answer.

About LeetCode

LeetCode is one of the most well-known online judge platforms to help you enhance your skills, expand your knowledge and prepare for technical interviews.

LeetCode is for software engineers who are looking to practice technical questions and advance their skills. Mastering the questions in each level on LeetCode is a good way to prepare for technical interviews and keep your skills sharp. They also have a repository of solutions with the reasoning behind each step.

LeetCode has over 1,900 questions for you to practice, covering many different programming concepts. Every coding problem has a classification of either Easy, Medium, or Hard.

LeetCode problems focus on algorithms and data structures. Here is some topic you can find problems on LeetCode:

Mathematics/Basic Logical Based Questions
Arrays
Strings
Hash Table
Dynamic Programming
Stack & Queue
Trees & Graphs
Greedy Algorithms
Breadth-First Search
Depth-First Search
Sorting & Searching
BST (Binary Search Tree)
Database
Linked List
Recursion, etc.

Leetcode has a huge number of test cases and questions from interviews too like Google, Amazon, Microsoft, Facebook, Adobe, Oracle, Linkedin, Goldman Sachs, etc. LeetCode helps you in getting a job in Top MNCs. To crack FAANG Companies, LeetCode problems can help you in building your logic.

Link for the Problem – Text Justification– LeetCode Problem

Text Justification– LeetCode Problem

Problem:

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

Text Justification– LeetCode Solutions

Text Justification in C++:

class Solution {
 public:
  vector<string> fullJustify(vector<string>& words, size_t maxWidth) {
    vector<string> ans;
    vector<string> row;
    size_t rowLetters = 0;

    for (const string& word : words) {
      // if we put the word in this row, it'll exceed the maxWidth,
      // so we cannot put the word to this row and have to pad spaces to
      // each word in this row
      if (rowLetters + row.size() + word.length() > maxWidth) {
        const int spaces = maxWidth - rowLetters;
        if (row.size() == 1) {
          // pad all spaces after row[0]
          for (int i = 0; i < spaces; ++i)
            row[0] += " ";
        } else {
          // evenly pad spaces to each word (expect the last one) in this row
          for (int i = 0; i < spaces; ++i)
            row[i % (row.size() - 1)] += " ";
        }
        ans.push_back(join(row, ""));
        row.clear();
        rowLetters = 0;
      }
      row.push_back(word);
      rowLetters += word.length();
    }
    ans.push_back(ljust(join(row, " "), maxWidth));

    return ans;
  }

 private:
  string join(const vector<string>& v, const string& c) {
    string s;
    for (auto p = begin(v); p != end(v); ++p) {
      s += *p;
      if (p != end(v) - 1)
        s += c;
    }
    return s;
  }

  string ljust(string s, int width) {
    for (int i = 0; i < s.length() - width; ++i)
      s += " ";
    return s;
  }
};

Text Justification in Java:

class Solution {
  public List<String> fullJustify(String[] words, int maxWidth) {
    List<String> ans = new ArrayList<>();
    List<StringBuilder> row = new ArrayList<>();
    int rowLetters = 0;

    for (final String word : words) {
      if (rowLetters + row.size() + word.length() > maxWidth) {
        final int spaces = maxWidth - rowLetters;
        if (row.size() == 1) {
          for (int i = 0; i < spaces; ++i)
            row.get(0).append(" ");
        } else {
          for (int i = 0; i < spaces; ++i)
            row.get(i % (row.size() - 1)).append(" ");
        }
        final String joinedRow =
            row.stream().map(StringBuilder::toString).collect(Collectors.joining(""));
        ans.add(joinedRow);
        row.clear();
        rowLetters = 0;
      }
      row.add(new StringBuilder(word));
      rowLetters += word.length();
    }

    final String lastRow =
        row.stream().map(StringBuilder::toString).collect(Collectors.joining(" "));
    StringBuilder sb = new StringBuilder(lastRow);
    final int spacesToBeAdded = maxWidth - sb.length();
    for (int i = 0; i < spacesToBeAdded; ++i)
      sb.append(" ");

    ans.add(sb.toString());
    return ans;
  }
}

Text Justification in Python:

class Solution:
  def fullJustify(self, words: List[str], maxWidth: int) -> List[str]:
    ans = []
    row = []
    rowLetters = 0

    for word in words:
      if rowLetters + len(word) + len(row) > maxWidth:
        for i in range(maxWidth - rowLetters):
          row[i % (len(row) - 1 or 1)] += ' '
        ans.append(''.join(row))
        row = []
        rowLetters = 0
      row.append(word)
      rowLetters += len(word)

    return ans + [' '.join(row).ljust(maxWidth)]

About LeetCode

Problem:

Leave a Comment Cancel reply

Ads Blocker Detected!!!