在Python中找出平铺数字的行

Question

Say I have a grid that looks something like this:

0 1 2 3
4 5 6 7

Imagine that we have aw by h grid, where the tiles are numbered starting at 1 in the top left corner. Imagine someone else has stored the values w (for width) and h (for height), that they have read in from a text file. You have access to these stored values, as long as you call them w and h. Write a program to return: the row number of a tile number given by the user. Use integer division, //, which returns only a whole number and truncates any remainder. Start counting rows at row 0.

sum = ((t - 1) // h) + 1 answers the question if the tiles start at 1, but I can't figure it out when the tiles start at 0.

Answer 1

You just divide the tile number by the number of tiles in a row w : row = t//w

To get the column do: col = t%w

I assume both row and column start at zero. If not, just add 1 where you need.