Submission #2545169

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Source Code Expand

#include<iostream>
using namespace std;
int main()
{
	long long a,b;
	cin>>a>>b;
	if(a==b)cout<<-1<<endl;
	else if(a!=b)
	{
	for(long long i=a+1;i<=1000000000000000000;i++)
	{
	    if(i%a==0&&i%b!=0)
		{
		    cout<<i<<endl;
		    return 0;
	    }
    }
	return 0;
    }
}

Submission Info

Judge Result