Hello! I have not been able to solve this task and was wondering if somebody could help me solve it.
There is a board n*n, on which real numbers are written, operations are the following:
There is a board n*n, on which real numbers are written, operations are the following:
If the sum of numbers in a column or row is negative, then I have to multiply every single one of the numbers in this column or row on (-1).
I have to prove that it is not possible to carry out infinite number of this operations on the given board.
English is not my first language so I apologize if I have made some mistakes here.
thank you very much.
I have to prove that it is not possible to carry out infinite number of this operations on the given board.
English is not my first language so I apologize if I have made some mistakes here.
thank you very much.