On Apr 6, 4:48 am, Glazner <yoavglaz...@gmail.com> wrote: > > > def invert(p): > > > inverse = [None] * len(p) > > > for (i, j) in enumerate(p): > > > inverse[j] = i > > > return inverse > > > Elegant. This seems like the best solution, although it isn't as much > > fun to write as a "one-liner". Thanks > >>> invert([1, 2, 3, 1]) > > [None, 3, 1, 2] #blah
I'm not sure if your post was meant to be serious, but if it was note that [1,2,3,1] isn't a list which represents a permutation of 0,1,...,n-1 (where n is the length of the list). Ian Kelly's code works correctly for input of the specified form. -- http://mail.python.org/mailman/listinfo/python-list
