Search⌘ K
AI Features
Home
Courses
Grokking the Coding Interview Patterns in C#

Solution: Word Break

Explore how to solve the Word Break problem by using dynamic programming to efficiently determine if a string can be segmented into dictionary words. Understand the approach of using a lookup table to store intermediate results, compare time and space complexities, and implement a clear solution with pointers and substring checks.

We'll cover the following...

Statement

Given a string, s, and a dictionary of strings, wordDict, check if s can be segmented into a space-separated sequence of one or more dictionary words. If yes, return TRUE; else, return FALSE.

Note: The same word in the dictionary may be used multiple times.

Constraints:

  • 1≤1 \leq s.Length ≤250\leq 250

  • 1≤1 \leq wordDict.Length ≤1000\leq 1000

  • 1≤1 \leq wordDict[i].Length ≤20\leq 20

  • s and wordDict[i] consist of only lowercase English letters.

  • All the strings of wordDict are unique.

Solution

So far, you’ve probably brainstormed some approaches and have an idea of how to solve this problem. Let’s explore some of these approaches and figure out which one to follow ...