Proof that vertex cover is NP complete

Prerequisite – Vertex Cover Problem, NP-Completeness Problem – Given a graph G(V, E) and a positive integer k, the problem is to find whether there… Read More »

Algorithms | NP Complete | Question 6

Which of the following is true about NP-Complete and NP-Hard problems. (A) If we want to prove that a problem X is NP-Hard, we take… Read More »

Algorithms | NP Complete | Question 5

Which of the following statements are TRUE? (1) The problem of determining whether there exists a cycle in an undirected graph is in P. (2)… Read More »

Algorithms | NP Complete | Question 4

The problem 3-SAT and 2-SAT are (A) both in P (B) both NP complete (C) NP-complete and in P respectively (D) undecidable and NP-complete respectively… Read More »

Algorithms | NP Complete | Question 3

Let X be a problem that belongs to the class NP. Then which one of the following is TRUE? (A) There is no polynomial time… Read More »

Algorithms | NP Complete | Question 2

Let S be an NP-complete problem and Q and R be two other problems not known to be in NP. Q is polynomial time reducible… Read More »

Algorithms | NP Complete | Question 1

Assuming P != NP, which of the following is true ? (A) NP-complete = NP (B) NP-complete P = (C) NP-hard = NP (D) P… Read More »