Educational Codeforces Round 6

প্রবলেমটি পড়ুন এবং বুঝুন

#include<iostream>
#include<cmath>

using namespace std;

int main()
{
    long int x1,y1,x2,y2;
    while(cin>>x1>>y1>>x2>>y2)
    {
        x2=abs(x2-x1);
        y2=abs(y2-y1);
        if(x2>y2)
            cout<<x2<<endl;
        else
            cout<<y2<<endl;
    }
    return 0;
}