Imagine that you are placed on a grid withnspaces in every row andnspaces in every column. You can start anywhere along the bottom row of the grid, and you must move to the top row ofthe grid. Each time you move, you can either move directly up (staying in the same column, butmoving up a row), up and to the left (moving over one column and up one row), or up and to theright (moving over one column and up one row). You cannot move up and to the left if you are inthe leftmost row, and you cannot move up and to the right if you are in the right most row. Each time you move, you are either paid or pay; that is, every legal move from squarextosquareyis assigned a real valuep(x, y). Sure, p(x, y) can also be 0. Give a dynamic programming algorithm to compute your sequence of moves to receive themaximum payoff to move from the bottom of the grid to the top of the grid. (Your maximumpayoff may be negative.) You must calculate thevalueof the optimal solution (i. e., the payoff)andthe solution itself (i. e., the sequence of moves). Again, you can start at any square in the bottomrow and end in any square in the top row.

answer6-9 screws;

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