100 - The 3n + 1 problem solution

#include<stdio.h>
int cycle(int a)
{
    int i=0;
    while(1)
    {
             i++;

        if(a==1)
            break;
        if(a%2!=0)
            a=(3*a)+1;
        else
            a=a/2;
    }
    return i;

}
int main()
{
    int a,b,c,temp,i;
    while(scanf("%d%d",&a,&b)==2)
    {
        int max=0;
        printf("%d %d ",a,b);
        if(a>b)
        {
            temp=a;
            a=b;
            b=temp;
        }
        for(i=a;i<=b;i++)
        {
            c=cycle(i);
            if(c>=max)
                max=c;
        }
        printf("%d\n",max);
    }
    return 0;
}