disjoint

#include <fstream>
using namespace std;
ifstream in ("disjoint.in");
ofstream out ("disjoint.out");
int i,v[100];
int n,m,c,x,y;
int caut (int i){
if (v[i]!=i) v[i]=caut(v[i]);
return v[i];}

void unire (int x,int y) v[caut(x)]=caut(y);

int main()
{in>>n>>m;
for (i=0;i<n;i++) v[i]=i;
for (i=0;i<n;i++) {
        in>>c>>x>>y;
        if (c==1) unire (x,y);
        if ((c==2)&&(caut(x)==caut(y))) out<<"Da"<<endl;
        else out<<"Nu"<<endl;}
}