Nbut 1218 you is my brother

Title Link: https://ac.2333.moe/Problem/view.xhtml?id=1218

#include <cstdio> #include <iostream> #include <sstream> #include <cstdlib> #include < cstring> #include <string> #include <climits> #include <cmath> #include <algorithm> #include <queue> #include <vector> #include <stack> #include <set> #include <map>using namespace    Std;int Main () {int i,fa[2005];    int n,a,b;        while (~SCANF ("%d", &n)) {for (i=0; i<=2005; i++) fa[i]=i;//First let yourself be your father while (n--)            {scanf ("%d%d", &a,&b);        Fa[a]=b;//b is A's father} int h1,h2;        h1=h2=0;        int a=1;            while (Fa[a]!=a) {a=fa[a];        h1++;        } int b=2;            while (fa[b]!=b) {b=fa[b];        h2++;        } if (H1&GT;H2) printf ("You Are my elder\n");        else if (H1&LT;H2) printf ("You Are my younger\n");    else printf ("You Are my brother\n"); } return 0;} 

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Nbut 1218 you is my brother