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Task Description
Merge Sorted Ranges
Given a list of numeric ranges, merge all overlapping ranges and return them sorted by start value.
Code Editor
function mergeRanges(ranges) {
const sorted = [...ranges].sort(
(a, b) => a[0] - b[0]
);
return sorted.reduce((merged, [s, e]) => {
const last = merged[merged.length - 1];
if (last && s <= last[1]) {
last[1] = Math.max(last[1], e);
} else {
merged.push([s, e]);
}
return merged;
}, []);
}Test Results
- handles no overlaps
- merges adjacent ranges
- merges nested ranges
- handles empty input
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Jordan Lee
Backend Engineer II · Platform Team
74%
Role fit
2
Skill gaps
3
Assessments
18d ago
Last assessed
Strengths
- Data Structures+12 vs role
- JavaScript+6 vs role
Gaps
- System Design-17 vs role
- API Design-11 vs role
Skills proficiency vs. role benchmark
- Data Structures92/ 80 required
- System Design58/ 75 required
- JavaScript86/ 80 required
- API Design64/ 75 required
- SQL78/ 70 required
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