Fetching algorithms...

Word Ladder Visualizer & Solution | Rulcode

rulcode

178. Word Ladder

Hard

Topics

Companies

Hint

Understand Before Coding

Visualize This Problem

Open Visualizer

Draw Your Approach

Draw

Example 1:

Input: beginWord = "hit", endWord = "cog", wordList = ["hot","dot","dog","lot","log","cog"]

Output: 5

Explanation: A shortest transformation sequence is "hit" -> "hot" -> "dot" -> "dog" -> "cog". This sequence has 5 words.

Example 2:

Input: beginWord = "hit", endWord = "cog", wordList = ["hot","dot","dog","lot","log"]

Output: 0

Explanation: The endWord"cog" is not present in the provided wordList, therefore no transformation sequence can reach it.

Example 3:

Input: beginWord = "a", endWord = "c", wordList = ["a","b","c"]

Output: 3

Explanation: A shortest transformation sequence is "a" -> "b" -> "c". This path consists of 3 words.

Example 4:

Input: beginWord = "hot", endWord = "dog", wordList = ["dot","dop","hot"]

Output: 0

Explanation: To transform "hot" to "dog", an intermediate word like "dot" would be needed (hot->dot), but then "dot" cannot reach "dog" as they differ by two letters. No valid sequence exists.

Constraints:

Time Complexity

N/A

Space Complexity

N/A

Loading problem details...

rulcode

178. Word Ladder

Hard

Topics

Companies

Hint

Understand Before Coding

Visualize This Problem

Open Visualizer

Draw Your Approach

Draw

Example 1:

Input: beginWord = "hit", endWord = "cog", wordList = ["hot","dot","dog","lot","log","cog"]

Output: 5

Explanation: A shortest transformation sequence is "hit" -> "hot" -> "dot" -> "dog" -> "cog". This sequence has 5 words.

Example 2:

Input: beginWord = "hit", endWord = "cog", wordList = ["hot","dot","dog","lot","log"]

Output: 0

Explanation: The endWord"cog" is not present in the provided wordList, therefore no transformation sequence can reach it.

Example 3:

Input: beginWord = "a", endWord = "c", wordList = ["a","b","c"]

Output: 3

Explanation: A shortest transformation sequence is "a" -> "b" -> "c". This path consists of 3 words.

Example 4:

Input: beginWord = "hot", endWord = "dog", wordList = ["dot","dop","hot"]

Output: 0

Explanation: To transform "hot" to "dog", an intermediate word like "dot" would be needed (hot->dot), but then "dot" cannot reach "dog" as they differ by two letters. No valid sequence exists.

Constraints:

Time Complexity

N/A

Space Complexity

N/A

178. Word Ladder

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Example 3:

Example 4:

Constraints:

Learn

Topics

Companies

Hint

Use Cases

178. Word Ladder

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Example 3:

Example 4:

Constraints:

Learn

Topics

Companies

Hint

Use Cases