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Solution: Word Break

Explore how to determine if a string can be segmented into dictionary words by implementing a dynamic programming solution. Understand the use of a lookup table to optimize recursive checks, reducing time complexity and preventing redundant computations. This lesson provides a detailed walkthrough of the algorithm, including initialization, substring checks, and final result determination, helping you apply dynamic programming concepts to solve this classic coding interview question.

Statement

Given a string, s, and a dictionary of strings, word_dict, 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:

  • 11 \leq s.length 250\leq 250

  • 11 \leq word_dict.length 1000\leq 1000 ...