Binary Search on graph
Last updated: June 19, 2026
Quick Overview
Given a directed graph represented as an adjacency list, implement a binary search algorithm to determine if a specific target node exists within a specified range of nodes. The function should return a boolean value indicating the presence of the target node. The input will consist of the graph's adjacency list, the target node, and the range of nodes to search within.
Walmart
June 19, 2026759
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1,610 solved
Given a directed graph represented as an adjacency list, implement a binary search algorithm to determine if a specific target node exists within a specified range of nodes. The function should return a boolean value indicating the presence of the target node. The input will consist of the graph's adjacency list, the target node, and the range of nodes to search within.
How to Approach This
- Clarify input constraints and edge cases before writing code.
- Walk through your approach verbally and confirm with the interviewer before coding.
- Start with a brute force solution, then optimize. Mention time and space complexity.
- Test your solution with examples, including edge cases like empty input or duplicates.
- Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
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Problem Analysis
In this problem, we are tasked with searching for a target node within a directed graph represented as an adjacency list. The binary search technique is typically applied to sorted arrays, but this pr...
Approach
- Graph Representation: Start by parsing the adjacency list. Each node will direct to its neighbors.
- Node Range Extraction: Implement a BFS or DFS to explore the graph starting from a giv...
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