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GATE | GATE-CS-2014-(Set-2) | Question 65

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  • Difficulty Level : Hard
  • Last Updated : 04 Aug, 2021
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A cycle on n vertices is isomorphic to its complement. The value of n is _____.
(A) 2
(B) 4
(C) 6
(D) 5


Answer: (D)

Explanation: Below is a cyclic graph with 5 vertices and its complement graph.

graphwithCycle

The complement graph is also isomorphic (same number of vertices connected in same way) to given graph.

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