| 2 | #and column are set to 0. |
| 3 | |
| 4 | class MatrixProcessor: |
| 5 | |
| 6 | def __init__(self, matrix): |
| 7 | self.n=len(matrix) |
| 8 | self.m=len(matrix[0]) |
| 9 | self.matrix = matrix |
| 10 | |
| 11 | def __str__(self): |
| 12 | rowstring="" |
| 13 | for row in self.matrix: |
| 14 | rowstring = rowstring + "[" |
| 15 | for cell in row: |
| 16 | rowstring = rowstring + " " + str(cell) + " " |
| 17 | rowstring = rowstring + "]\n" |
| 18 | return rowstring |
| 19 | |
| 20 | def zeroProcess(self): |
| 21 | columnstozero=[] |
| 22 | rowstozero=[] |
| 23 | for rowcount,row in enumerate(self.matrix): |
| 24 | for cellcount, cell in enumerate(row): |
| 25 | if cell == 0: |
| 26 | columnstozero.append(cellcount) |
| 27 | rowstozero.append(rowcount) |
| 28 | for rownum in rowstozero: |
| 29 | self.zeroRow(rownum) |
| 30 | for colnum in columnstozero: |
| 31 | self.zeroColumn(colnum) |
| 32 | |
| 33 | def zeroRow(self, rownum): |
| 34 | newRow=[] |
| 35 | for x in range(0, self.m): |
| 36 | newRow.append(0) |
| 37 | self.matrix[rownum]=newRow |
| 38 | |
| 39 | def zeroColumn(self, colnum): |
| 40 | for row in self.matrix: |
| 41 | row[colnum]=0 |
| 42 | |
| 43 | #testing |
| 44 | |