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Pick interview patterns like sliding window, graphs, trees, and DP, then practice timed prompts by difficulty.
Visual practice for graph traversal, sorting, complexity understanding, and interview prep.
Choose an interview pattern, spin a targeted question, and solve under a timed session.
Selected Prompt
Longest Substring Without Repeat
Focus: Track character index and move left bound
Expected complexity: O(n)
Practice Timer
15:00
Solved in current session: 0
Available prompts in this filter: 1
Shrinkify's Problem Pattern Picker helps new developers practice coding interviews with a structured pattern-first workflow. Choose a pattern and difficulty, get focused prompts, and run timed sessions to build consistency under pressure.
Yes. You can use Problem Pattern Picker at no cost for standard workflows in-browser.
Yes. This tool follows a local-first approach in normal usage, so your source data stays on your device.
In day-to-day use, yes, though larger files and advanced operations generally perform better on desktop hardware with more memory. This is usually the most reliable approach for repeatable results.
In most workflows, no account is required for core workflows. You can start immediately and process directly in your browser.
For typical usage, anyone handling practical algorithm preparation who needs fast browser-based execution without heavyweight local installs. This helps keep outputs consistent across different devices.
Check out our technical guides to learn more about how browser-side processing works.
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