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Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

What difficulty level is this interview question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at TikTok.

What role is this question designed for?

This question is commonly asked for Machine Learning Engineer candidates at TikTok during technical interviews.

Determine if a string can be segmented | TikTok Interview Question

Q: Determine if a string can be segmented

This question evaluates a candidate's understanding of dynamic programming and string-processing skills, along with algorithmic complexity analysis for segmentation problems.

Given a string s and a list of strings wordDict, determine whether s can be segmented into a sequence of one or more dictionary words.

You may reuse dictionary words multiple times.
Return true if such a segmentation exists, otherwise return false .

Input

s : a non-empty string
wordDict : a list of non-empty strings

Output

Boolean indicating whether s can be segmented.

Example

s = "leetcode" , wordDict = ["leet", "code"] → true
s = "catsandog" , wordDict = ["cats","dog","sand","and","cat"] → false

Notes / constraints (typical interview assumptions)

1 <= len(s) <= 10^4
1 <= len(wordDict) <= 10^5
Total characters across wordDict can be large; aim for an efficient solution.

Given a string s and a list of strings wordDict, determine whether s can be segmented into a sequence of one or more dictionary words.

You may reuse dictionary words multiple times.
Return true if such a segmentation exists, otherwise return false .

Input

s : a non-empty string
wordDict : a list of non-empty strings

Output

Boolean indicating whether s can be segmented.

Example

s = "leetcode" , wordDict = ["leet", "code"] → true
s = "catsandog" , wordDict = ["cats","dog","sand","and","cat"] → false

Notes / constraints (typical interview assumptions)

1 <= len(s) <= 10^4
1 <= len(wordDict) <= 10^5
Total characters across wordDict can be large; aim for an efficient solution.

Determine if a string can be segmented

Quick Overview

Input

Output

Example

Notes / constraints (typical interview assumptions)

Comments (0)

Determine if a string can be segmented

Quick Overview

Input

Output

Example

Notes / constraints (typical interview assumptions)

Comments (0)