Count connected components in interval list

Last updated: November 18, 2025

Quick Overview

Count the number of minimum cost in the given array.

Bloomberg
Coding & Algorithms
Software Engineer
Bloomberg
November 18, 2025
Software Engineer
Take-home Project
Coding & Algorithms
Easy

55

9

1,916 solved


Count the number of minimum cost in the given array.

This coding problem is frequently asked during Take-home Project at Bloomberg. The interviewer is testing your ability to translate a problem into clean, working code while discussing time and space complexity. Bloomberg expects candidates to write production-quality code, not just solve the puzzle.

What the Interviewer Expects
  • Identify the correct data structure and algorithm for the problem
  • Write clean, bug-free code with proper variable naming
  • Analyze time and space complexity correctly
  • Handle basic edge cases (empty input, single element)
  • Communicate your thought process while coding
Key Topics to Cover
Common algorithm patterns (sliding window, two pointers, BFS/DFS)
Hash maps and frequency counting
Edge cases and input validation
Tree structures and recursion
Time and space complexity analysis
Graph algorithms and traversal
How to Approach This
  1. Clarify input constraints and edge cases before writing code.
  2. Walk through your approach verbally and confirm with the interviewer before coding.
  3. Start with a brute force solution, then optimize. Mention time and space complexity.
  4. Test your solution with examples, including edge cases like empty input or duplicates.
  5. Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
Possible Follow-up Questions
  • Can you optimize the space complexity of your solution?
  • What is the worst-case input for your solution?
  • Can you solve this in a single pass?
  • How would you test this solution thoroughly?
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