Bob, the builder, has a set n of n nuts and a set b of n bolts, such that each nut inn has a unique matching bolt in b. unfortunately, the nuts in n all look the same, and the bolts in b all look the same as well. the only kind of comparison that bob can make is to take a nut-bolt pair (a; b), such that a 2 n and b 2 b, and test it to see if the threads of a are larger, smaller, or a perfect match with the threads of b. describe an efficient algorithm for bob to match up all the nuts in n with the corresponding bolts in b. what is the average running time of this algorithm in terms of nut-bolt comparisons that bob must do?

This isn’t really school related, but like where the heck can you find manga, to read to where you don’t have to pay money, for points? my friend wants me to read bj alex, and i can’t find it anywhere for free.

If the polar bear were taken out of the food chain what would happen to the seal population the seal population would diminish the seal population would grow dramatically the seal population would stay the same the seal population would decrease slightly

Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?