One key element in the construction of the fully polynomial-time approximation scheme for the knapsack problem was the ability to compute lower and upper bounds for the optimal value that are within a factor of n of each other (using the maximum value piece that fits in the knapsack to get the lower bound). Use the result of the previous exercise to derive a refined approximation scheme that eliminates one factor of n in the running time of the algorithm.

building and maintaining the topology is difficult and time consuming. the chance of redundant connections is high, which adds to the high costs and potential for reduced efficiency.

explanation:

cyberstalking on the internet means to harass or stalk someone, a group, or an organization. this may include defamation, slander, and false accusations. in many jurisdictions, cyberstalking is a criminal offense. 

on the other hand, cyberbullying focuses more on intimidating, threatening or harassing someone. harmful bullying include posting threats, rumors, and sexual remarks.