#include <bits/stdc++.h>
using namespace std;
int main()
{
unsigned long long a,b;
cin>>a>>b;
cout<<lcm(a,b);
return 0;
}
直接用c++的内置函数lcm(m,n)
注意审题,题目中的范围是264−1(unsignedlonglong范围内)
#include <bits/stdc++.h>
using namespace std;
int main()
{
unsigned long long a,b;
cin>>a>>b;
cout<<lcm(a,b);
return 0;
}