Can we use the worst-case efficiency to measure the overall efficiency of an algorithm? O yes o no When we apply the linear search on an array with 12 elements, can we say that the average-case efficiency is 6 comparisons? yes o no It is possible to show that some algorithm is optimal without exhausting all the algorithms that solve the same problem. True False We have an optimal algorithm that solves the Finding the minimum problem for a given array. True O False