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ceilsum.cpp
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ceilsum.cpp
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#include <bits/stdc++.h>
using namespace std;
#define lli long long int
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
// #ifndef ONLINE_JUDGE
// freopen("input.txt","r",stdin);
// freopen("output.txt","w",stdout);
// #endif
lli t,z;
cin>>t;
for(z=1;z<=t;z++)
{
long long int a,b;
cin>>a;
cin>>b;
long long int minimum=min(a,b);
long long int maximum=max(a,b);
if(a==b)
{
cout<<"0"<<endl;
}
else
{
long long int x;
if(a>b)
{
x=a-1;
}
else
{
x=b-1;
}
long long int sol= ceil((b-x)/2.0)+ceil((x-a)/2.0);
cout<<sol<<endl;
}
}
return 0;
}