Pagini recente » Cod sursa (job #2505) | Monitorul de evaluare | Cod sursa (job #2815966)
#include <fstream>
using namespace std;
ifstream cin("disjoint.in");
ofstream cout("disjoint.out");
int tt[100001];
int ef(int x)
{
if(tt[x]==x)
return x;
else
return tt[x]=ef(tt[x]);
}
void unire(int x, int y)
{
tt[ef(y)]=ef(x);
}
int main()
{
int n,m,x,y,i,c;
cin>>n>>m;
for(i=1;i<=n;i++)
{
tt[i]=i;
}
for(i=1;i<=m;i++)
{
cin>>c>>x>>y;
if(c==1)
{
unire(x,y);
}
else
{
if(ef(x)==ef(y))
cout<<"DA"<<'\n';
else
cout<<"NU"<<'\n';
}
}
return 0;
}