2125 6 25* 49 012345 j=021 2525* 49 08 2345 temp j=-1 6 21目252549 08 2 3 4 5 temp25 25* 16 16 21 25 49 25* 08 0 1 2 3 4 5 0 1 2 3 4 5 temp 21 49 25* 08 0 1 2 3 4 5 temp 21 25 25* 49 16 08 16 16 25 21 i = 4 j = 1 i = 4 j = 0 i = 4 j = -1 16