https://www.codechef.com/viewsolution/29273057
please someone help. its giving WA.
#include<bits/stdc++.h>
using namespace std;
#define lli long long int
#define BIG(a,b) (a>b)?a:b
#define SMALL(a,b) (a<b)?a:b
#define FOR(i,o,n) for(auto i=o;i<n;i++)
int main()
{
ios_base::sync_with_stdio( false );
cin.tie(NULL);
lli t,a,b,c=0;
cin>>t;
while(t--)
{
cin>>a>>b;
if(a==b)
cout<<"-1"<<endl;
else
{
a=abs(a-b);
for(auto i=1;i<=sqrt(a);i++)
{
if(a%i==0)
c+=2;
if(i*(a/i)==a)
c--;
}
}
cout<<c<<endl;
}
return 0;
}
edit: solved
