Check whether a given graph is Bipartite or not — DSA Technical Interview Questions & Answers

Check whether a given graph is Bipartite or not

Check whether a given graph is Bipartite or not

  • Check whether a given graph is Bipartite or not is a DSA topic. In plain words you use it for bus routes in a city map. Don’t start with a slogan — start with that picture.
  • Smallest example: BFS queue / DFS stack. Type it, run it, and say what you see. If you can do that from memory, you know Check whether a given graph is Bipartite or not.
  • From the example next to this theory: Check whether a given graph is Bipartite or not — graphs are often stored as adjacency lists: vertex → list of (neighbor, weight).
  • Trap: no visited set → infinite loop. Fix that before you talk about advanced DSA.
  • Viva: what is Check whether a given graph is Bipartite or not? Then show BFS queue / DFS stack. Then name the trap.

Technical Interview Tip: What is Check whether a given graph is Bipartite or not? Show this: BFS queue / DFS stack. Trap: no visited set → infinite loop.

Code Examples for Check whether a given graph is Bipartite or not

Check whether a given graph is Bipartite or not — working example

# adjacency list
graph = {
    "A": [("B", 2), ("C", 5)],
    "B": [("A", 2), ("C", 1)],
    "C": [("A", 5), ("B", 1)],
}
for u, edges in graph.items():
    print(u, "->", edges)

Check whether a given graph is Bipartite or not — graphs are often stored as adjacency lists: vertex → list of (neighbor, weight).

How to Explain Check whether a given graph is Bipartite or not to an Interviewer

What is Check whether a given graph is Bipartite or not?

Used for bus routes a city map Not just the heading

Give one small example of Check whether a given graph is Bipartite or not.

BFS queue / DFS stack Check whether a given graph is Bipartite or not — graphs are often stored as adjacency lists: vertex → list of (neighbor, weight)

What mistake do beginners make with Check whether a given graph is Bipartite or not?

no visited set → infinite loop Show the fix

Where do you use Check whether a given graph is Bipartite or not?

a city map bus routes