675A - Infinite Sequence - CodeForces Solution

#include<bits/stdc++.h>
using namespace std;
signed main()
{
 int a=0,b=0,c=0;
 cin>>a>>b>>c;
 if(c==0&&a==b||(c!=0&&(b-a)%c==0&&(b-a)/c>=0))
 cout<<"YES";
 else
 cout<<"NO";
}