Xây dựng hàm BCNN
Code:
#include <bits/stdc++.h>
using namespace std;
int UCLN(int a , int b)
{
while(1)
{
if(abs(a) > abs(b))
a = abs(a) - abs(b);
if(abs(b) > abs(a))
b = abs(b) - abs(a);
if(abs(a) == abs(b))
break;
if(a == 0 || b == 0)
break;
}
if(a == 0 || b == 0)
return abs(a - b);
else
return abs(a);
}
int BCNN(int a, int b)
{
return (abs(a) * abs(b)) / UCLN(abs(a),abs(b));
}
int main()
{
int a,b;
cin>>a>>b;
cout<<BCNN(a,b);
return 0;
}
