How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

What difficulty level is this interview question?

This is a Medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at Bloomberg.

What role is this question designed for?

This question is commonly asked for Software Engineer candidates at Bloomberg during technical interviews.

Solve Number of Islands

Last updated: Mar 29, 2026

Quick Overview

This question evaluates understanding of graph and grid traversal concepts, specifically identifying connected components in a binary matrix and familiarity with traversal strategies such as BFS and DFS.

Medium
Bloomberg
Coding & Algorithms
Software Engineer

Bloomberg

Aug 4, 2025, 10:55 AM

Software Engineer

Onsite

Coding & Algorithms

Question

LeetCode 200. Number of Islands – Given a 2D grid of '1's (land) and '0's (water), count the number of islands. Follow-up: implement the solution with BFS and discuss corner-case handling.

leetcode.com/problems/number-of-islands/description/

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