Code RoomWord break all segmentations
HardPrep Room Coding #1171

Word break all segmentations

CodingAlgorithms & data structuresSenior–Staff~30 min

Given a string s and a dictionary of words, return all sentences (space-joined) where s can be segmented into a sequence of dictionary words. Words may be reused. Return the sentences sorted lexicographically. The length of s is at most 20 and the dictionary has at most 1000 words.

Implement
word_break_all(s: str, word_dict: list[str]) → list[str]
Examples
in["catsanddog",["cat","cats","and","sand","dog"]]out["cat sand dog","cats and dog"]
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 30 min
InputExpectedGot
["catsanddog",["cat","cats","and","sand","dog"]]["cat sand dog","cats and dog"]not run yetsample