Topic Description Given a R rows C 01 column matrix, find one of the largest full-square sub-matrix, and outputs the area of the largest square sub-matrices. [Enter] The first line is given two positive integers R, C, represents the column matrix has R rows C The next R rows C 01 column gives the matrix elements in the two adjacent rows separated by a space. [Output] A number of the largest area of the square sub-matrix (ie the number 1). Input and output sample]

ttt.txt

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