
Re: 4 colors problem
Posted:
Mar 4, 2014 2:08 PM


Please keep in mind that if in case the longer country spans the whole row that it happens to be in, then 4 color solution succeeds. Also if the longer country ends at the rightmost boundary of the matrix such that there is no column of countries, then 4 color solution also succeeds.
This is true regardless of whether the longer country is longer by a multiple of odd numbers, or by a multiple of even numbers...

