Textile Engineering > GATE 2026 > Graph Theory - Vertex Cover
Consider an art gallery whose walkways are shown as lines in the diagram. A black dot represents a junction of two walkways. A guard may be placed at a junction to watch over the walkways that join at that junction. The minimum number of guards needed to watch all the walkways is ________.
A
2
B
3
C
4
D
5

Correct : b

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Related Topics

art gallery security guard placement textile engineering gate minimum guards required GATE 2026 Textile Engineering guard placement walkways GATE textile engineering guard placement problem walkway junctions security GATE textile questions

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