Netflix expects you to know this pattern for parsing search queries and subtitle synchronization. Google and Amazon ask it regularly. Here's the pattern: when you need to check if a string can be formed from parts, define dp[i] as whether prefix s[..i-] is valid. Try all possible last parts. Related: Palindrome Partitioning, Concatenated Words.
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$ curl repovive.com/roadmaps/maang-interview-prep/dynamic-programming/word-break-why-this-problem
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