please help, give me some exemples
if
descendant(A,B)==true, if A is descendant for B
int level(int X) == level of vertex with number X,
level(root)==0

my code:
...

    for (i=0;i<L;i++)
    {
        int a,b;
        scanf("%i %i",&a,&b);
        if (a==b){printf("0\n");continue;}
        if (level(a)<level(b))
        {
            if (descendant(b,a)) printf("1\n");
            else printf("0\n");
        }
        else
        {
            if (descendant(a,b)) printf("2\n");
            else printf("0\n");
        }
    }

WHY I got WA14?
please help me