Yet Another Two Integers Problem SOLUTION
You are given two whole numbers an and b. In one move, you can pick some whole number k from 1 to 10 and add it to an or deduct it from a. As such, you pick a whole number k∈[1;10] and perform a:=a+k or a:=a−k. You may utilize various estimations of k in various moves.
Your undertaking is to locate the base number of moves needed to acquire b from a.
You need to answer t free experiments.
The main line of the info contains one number t (1≤t≤2⋅104) — the quantity of experiments. At that point t experiments follow.
The main line of the experiment contains two whole numbers an and b (1≤a,b≤109).
For each experiment, print the appropriate response: the base number of moves needed to get b from a.
In the primary experiment of the model, you don’t have to do anything.
In the subsequent experiment of the model, the accompanying arrangement of moves can be applied: 13→23→32→42 (include 10, include 9, include 10).
In the third experiment of the model, the accompanying succession of moves can be applied: 18→10→4 (take away 8, deduct 6).