Bronze 2016 The Cow Signal (Code help)

Problems and Contests
#1

I was wondering what this line of python code means? (https://usaco.guide/problems/usaco-665-the-cow-signal/solution)

print(g[i//K][j//K],end=’’)

^ What does that line of code do to print the desired amount of Xs and "."s?

Thanks!

#2

Do you understand what it literally does? As in, what it prints out given the values of i and j?

#3

I think yes, but what does the "i//K’ do?

Thanks!

#4

It performs floor division.