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#4 most askedVery commonMediumIntervals

Merge Intervals

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Given a list of intervals [start, end], merge all overlapping intervals and return the result sorted by start.

[[1, 3], [2, 6], [8, 10], [15, 18]] → [[1, 6], [8, 10], [15, 18]]

🧪 Practice

Write your solution, then press Run tests. Explain your approach out loud as you go.

Python
def merge(intervals):
    pass

Output appears here. Press Run or Ctrl/⌘ + Enter.

Try it first. Struggling for a few minutes is how it sticks.