C++求两个整数的最大公约数和最小公倍数

 1 #include <iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     int a,b,tmp,m;
 6     cin>>a>>b;
 7     m=a*b;
 8     if(a<b)
 9     {
10         tmp=b;
11         b=a;
12         a=tmp;
13     }
14     while(b!=0)
15     {
16         tmp=a%b;
17         a=b;
18         b=tmp;
19     }
20     cout<<"LCD:"<<a<<endl;
21     cout<<"LCM:"<<m/a<<endl;
22 }

 1 #include <iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     int a,b,tmp,m;
 6     cin>>a>>b;
 7     m=a*b;
 8     while(a!=b)
 9     {
10         if(a>b) a=a-b;
11         else b=b-a;
12     }
13     cout<<"LCD:"<<a<<endl;
14     cout<<"LCM:"<<m/a<<endl;
15 }