摘要： Joe works in a maze. Unfortunately, portions of the maze havecaught on re, and the owner of the maze neglected to create a reescape plan. Help Joe esc 阅读全文

摘要： Given a m-by-n (0,1)-matrix, of all its submatrices of all 1’s which is the largest? By largest we mean that the submatrix has the most elements. Inpu 阅读全文