Unique Paths II
Learn how to solve the Unique Paths II coding problem to prepare for your next technical interview! Unique Paths II looks almost identical to Unique Paths. One small change: obstacles. That single twist forces you to slow down, re-examine every assumption, and adapt the same DP pattern carefully. Interviewers love this problem precisely because it separates candidates who understand the pattern from those who just memorized it.
3 hours ago7 min read
Unique Paths
Learn how to solve the Unique Paths coding problem to prepare for your next technical interview! Unique Paths tests whether you can recognize a counting dynamic programming pattern and model state correctly. It's a classic interview question because the logic scales cleanly to harder grid problems. Once you've internalized the thinking here, a whole family of harder problems opens up.
1 day ago7 min read
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Learn how to solve the Target Sum coding problem to prepare for your next technical interview!
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