A Hamiltonian cycle or traceable cycle is a path that visits each vertex exactly once and returns to the starting vertex.
Given an Adjacency Matrix A, and a tour T, determine if the tour is Hamiltonian, ie a valid tour for the travelling salesman problem.
A is a matrix with 1 and 0 indicating presence of edge from ith vertex to jth vertex. T is a row vector representing the trip containing list of vertices visited in order. The trip from the last vertex in T to the first one is implicit.