E1 - Divisible Numbers (easy version)(hard version)
Thisisaneasyversionoftheproblem.Theonlydifferencebetweenaneasyandahardversionistheconstraintsonaa,bb,ccanddd.Youaregiven44positiveintegersaa,bb,cc,ddwitha#defineintlonglongusingnamespacestd;intgcd(int