177. SPEED.cpp

#include<bits/stdc++.h>
using namespace std;

//defined my macro functions
#define max3(a,b,c) max(a,max(b,c))
#define min3(a,b,c) min(a,min(b,c))

//defined my macro strings
#define ENDL "\n"
#define SPACE " "

//defined my constants
const int INF = 0x3f3f3f3f;
const int MOD = 1000000007; //9digits
const double EPS = 1e-8;
const long double EULER = 2.71828182845904523536;   //20digits
const long double PI = 3.14159265358979323846;      //20digits
//float = 7digits, double = 15digits, long double = 21 digits precision

//defined my own datatypes
typedef long long ll;
typedef unsigned long long ull;

int gcd(int a, int b)
{
    if(a < b) swap(a, b);
    return (b) ? gcd(b, a % b) : a;
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int t;
    cin>>t;
    while(t--)
    {
        int a, b;
        cin>>a>>b;
        cout<<((abs(a - b)) / (gcd(abs(a), abs(b))))<<endl;
    }

    return 0;
}