Coding-round time management and common problem patterns
40 min · Intermediate
A coding round is a race against the clock with partial marks on offer. A simple plan wins more marks than raw speed: read every problem, solve the easiest first, submit a working brute force early, then improve it if time allows.
Topics in this lesson
- Splitting 60 to 90 minutes across problems
- Common patterns in fresher coding rounds
- Brute force first, then optimise
- Testing before you submit
- Worked example: most frequent roll number
Interview questions this lesson answers
- How do you split your time in a 90-minute round with three problems?
- Why solve the easiest problem first instead of going in order?
- Why is brute force useful even when it is too slow?
- How would you find the most frequent element in an array of 10⁵ numbers?
- What is a prefix sum, and when do you use it?
- What is a stress test?
- Which edge cases do you check for an array problem?
- How do you decide which problem is easiest?
- When do you stop working on a problem?
- What is the difference between HashMap and HashSet in coding problems?
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