two dimensional array
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local dio = require "dio"
print("Hello World!");
arr = {};
for i=1,5 do
row = {}
for j = 1,4 do
row[j] = i*10+j
end
arr[i] = row;
end
print(#arr.."r"..#arr[1].."c")
dio.PrintTable(arr)
Lua
INFO