题解 | #小乐乐与欧几里得#

#include <stdio.h>

int main() 
{
    long long int n, m, a=0, max, min;
    scanf("%lld %lld", &n, &m);
    /*如果N与M相等，则A为其本身*/
    if(n == m)
        a = n;
    /*区分N与M哪一个大*//*若N更大，将N-M与MIN想比较，若相等,跳出循环，不等，继续*/
    else if(n > m)
    {
        max = n;
        min = m;
        a = max -min;
        while(min != a)
        {
            if(min > a)
            {
                max = min;
                min = a;
            }
            else 
            {
                max = a;
            }
            a = max-min;
        }
    }
    else
    {
        max = m;
        min = n;
        a = max -min;
        while(min != a)
        {
            if(min > a)
            {
                max = min;
                min = a;
            }
            else 
            {
                max = a;
            }
            a = max-min;
        }
    }
    printf("%lld", a+(n*m)/a);
    return 0;
}