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The reform of the Polish national education system started in the school year 1999/2000. One of the main features of it is the plan to integrate Information and Communication Technology (ICT) into almost all school subjects. The second important feature is preparing students to use computers and software in other subjects during separate ICT lessons. The(More)
The bandwidth of a graph G is the minimum of the maximum diier-ence between adjacent labels when the vertices have distinct integer labels. We provide a polynomial algorithm to produce an optimal bandwidth labeling for graphs in a special class of block graphs (graphs in which every block is a clique), namely those where deleting the vertices of degree one(More)