Longest Substring with K Uniques: step-by-step visual explanation
Learn the Longest Substring with K Uniques problem with a step-by-step DSA animation. Follow the Sliding Window (String) solution with synced C#, Python, and Java code.
Sliding Window (String) pattern
The right side grows the window. The left side removes letters whenever the current group breaks the rule.
Difficulty: Medium · Approach: Keep exactly K letter types
Open Algorithm Atlas to watch the full interactive lesson and follow every execution step.