DSA · Theory

Add and Remove Vertex in Adjacency Matrix Representation of Graph

Theory

806/810

Add and Remove Vertex in Adjacency Matrix Representation of Graph

Don’t start Add and Remove Vertex in Adjacency Matrix Representation of Graph with jargon. Start with bus routes. That is the whole point.

Add and Remove Vertex in Adjacency Matrix Representation of Graph on the board: BFS queue / DFS stack. Then say what bus routes looks like after.

Add and Remove Vertex in Adjacency Matrix Representation of Graph exists so Arun can keep bus routes correct in a city map.

Arun ships Add and Remove Vertex in Adjacency Matrix Representation of Graph in a city map. That is the use case worth saying.

Don’t do this with Add and Remove Vertex in Adjacency Matrix Representation of Graph: no visited set → infinite loop. Interviewers spot it in ten seconds.

Place Add and Remove Vertex in Adjacency Matrix Representation of Graph next to nearby DSA work — BFS queue / DFS stack is the link.

Viva for Add and Remove Vertex in Adjacency Matrix Representation of Graph: what it is → BFS queue / DFS stack → the mistake (no visited set → infinite loop).

Exam tip

Say Add and Remove Vertex in Adjacency Matrix Representation of Graph in one breath, then BFS queue / DFS stack, then no visited set → infinite loop.

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)

Add and Remove Vertex in Adjacency Matrix Representation of Graph — graphs are often stored as adjacency lists: vertex → list of (neighbor, weight).

Short notes

DefAdd and Remove Vertex in Adjacency Matrix Representation of Graph — Arun uses it for bus routes in a city map.
RuleAdd and Remove Vertex in Adjacency Matrix Representation of Graph → BFS queue / DFS stack.
RememberAdd and Remove Vertex in Adjacency Matrix Representation of Graph + a dry-run table (a city map).
UseAdd and Remove Vertex in Adjacency Matrix Representation of Graph in a city map (bus routes).
TrapAdd and Remove Vertex in Adjacency Matrix Representation of Graph — no visited set → infinite loop.
ExAdd and Remove Vertex in Adjacency Matrix Representation of Graph → bus routes.

DSA · Theory

Add and Remove Vertex in Adjacency Matrix Representation of Graph

← All stacks

Theory

806/810

Add and Remove Vertex in Adjacency Matrix Representation of Graph

Don’t start Add and Remove Vertex in Adjacency Matrix Representation of Graph with jargon. Start with bus routes. That is the whole point.

Add and Remove Vertex in Adjacency Matrix Representation of Graph on the board: BFS queue / DFS stack. Then say what bus routes looks like after.

Add and Remove Vertex in Adjacency Matrix Representation of Graph exists so Arun can keep bus routes correct in a city map.

Arun ships Add and Remove Vertex in Adjacency Matrix Representation of Graph in a city map. That is the use case worth saying.

Don’t do this with Add and Remove Vertex in Adjacency Matrix Representation of Graph: no visited set → infinite loop. Interviewers spot it in ten seconds.

Place Add and Remove Vertex in Adjacency Matrix Representation of Graph next to nearby DSA work — BFS queue / DFS stack is the link.

Viva for Add and Remove Vertex in Adjacency Matrix Representation of Graph: what it is → BFS queue / DFS stack → the mistake (no visited set → infinite loop).

Exam tip

Say Add and Remove Vertex in Adjacency Matrix Representation of Graph in one breath, then BFS queue / DFS stack, then no visited set → infinite loop.

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)

Add and Remove Vertex in Adjacency Matrix Representation of Graph — graphs are often stored as adjacency lists: vertex → list of (neighbor, weight).

Short notes

DefAdd and Remove Vertex in Adjacency Matrix Representation of Graph — Arun uses it for bus routes in a city map.
RuleAdd and Remove Vertex in Adjacency Matrix Representation of Graph → BFS queue / DFS stack.
RememberAdd and Remove Vertex in Adjacency Matrix Representation of Graph + a dry-run table (a city map).
UseAdd and Remove Vertex in Adjacency Matrix Representation of Graph in a city map (bus routes).
TrapAdd and Remove Vertex in Adjacency Matrix Representation of Graph — no visited set → infinite loop.
ExAdd and Remove Vertex in Adjacency Matrix Representation of Graph → bus routes.

Add and Remove Vertex in Adjacency Matrix Representation of Graph

Example

Short notes

Questions

Add and Remove Vertex in Adjacency Matrix Representation of Graph

Example

Short notes

Questions