1409A - Yet Another Two Integers Problem.cpp

/*
problem link: https://codeforces.com/problemset/problem/1409/A
problem name: 1409A - Yet Another Two Integers Problem
status:ACCEPTED
author :Mohand Sakr.
*/

#include <iostream>
using namespace std;

int main() {
	int t;
	cin>>t;
	
	while(t--){
		int a,b;
		cin>>a>>b;
		
		if(a==b){
			cout<< 0<<endl;
		}
		else {
		
		int diff=abs(a-b);
	
		
		int arr[11]={};
		int answer=0;
		for(int i=10;i>0;i--){
			arr[i]=diff/i;
			diff-=arr[i]*i;
			answer+=arr[i];
		}
		
		cout<<answer<<endl;
		
			
		}
		
		
		
	}
	
	
	
	
	return 0;
}