Given a sequence of 19 positive (not necessarily distinct) integers not greater than 93, and a set of 93 positive (not necessarily distinct) integers not greater than 19.
Show that we can find non-empty subsequences of the two sequences
with equal sum.
note one way of making a "sequence of sequences"
93 x 1 = 18 x 5 + 3
93 x 2 = 18 x 10 + 6
93 x 3 = 18 x 15 + 9
So for n = 1,... and f=floor(93 n/18) and r its remainder...
93 x n = 18 x f + r
That's as formal as I'm gonna get :-)