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A group consisting of 3 cannibals and 3 missionaries seek to cross a river. A boat is available to hold at most two people at
A group consisting of 3 cannibals and 3 missionaries seek to cross a river. A boat is available to hold at most two people at a time, and it can be rowed by any combination of cannibals and missionaries involving one or two people. However, if the missionaries on either side of the river, or in the boat, are outnumbered at any time by the cannibals, the cannibals will eat the missionaries. This will fail the mission and is not allowed. Please answer the following questions attempting to solve the river-crossing mission 3 cannibals 3 missionaries O OO Side A Boat River Side B (1) One way to solve the problem is to express some invariant property of the solution elegantly (e.g., with a recursive relation), and the solution will emerge. Let fv(m1, n1, m2, n2) denote the maximum number of people on the side B at the end of N stages, starting with ml cannibals and nl missionaries on the side A and m2 and n2 respectively on the side B. One stage of the process consists of sending xl cannibals and yl missionaries from side A to side B and then of sending x2 cannibals and y2 missionaries back to side A. Please write down the recursive relation between fy and fv-1 fy(m1, n1, m2, n2) (1 point)
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