How to make a 2d slice with dynamic sizing?

Question

Here, I created a 2d slice with a size of var m.
This code gives a ERROR
How to solve it?
https://code.sololearn.com/cSEedWB60P0B/?ref=app

Answer 1

˜”*°•.˜”*°• Mohan 333 •°*”˜.•°*”˜ You need to also initialize each slice of the 2d-slice:

slice2d := make([][]int,m)
for i:=0;i<m;i++{
slice2d[i] = make([]int,m)
}

Answer 2

Giorgos D
It really works! Thank you.