Another solution


#1

Another solution can be:
first cut: cut the bar horizontally first. And then move the lower half one block left.
the second cut: cut it so that now you have 1,2,1.5 and 2.5 blocks.
Then the solution is the same as with 1,2,4.
Yes, the original solution is better than this one. But this one is would sound more original in an interview.