Pagini recente » Cod sursa (job #757006) | Cod sursa (job #2180488) | Cod sursa (job #2841695) | Cod sursa (job #2532648) | Cod sursa (job #1744864)
#include <bits/stdc++.h>
#define for0(i,n) for(int i=0; i<n; i++)
#define for1(i,n) for(int i=1; i<=n; i++)
#define pb push_back
#define mp make_pair
#define all(v) v.begin(), v.end()
#define V vector<int>
#define VP vector<pair<int, int> >
#define clr(A,x) memset(A, x, sizeof(A))
#define cpy(A,B) memcpy(A, B, sizeof(B))
#define g(s) getline(cin, s) ///ai grija la fin/cin ///
#define FASTIO ios_base::sync_with_stdio(0)
#define INF 0x3f3f3f3f
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
/*template <typename T>
string to_string(const T& n){
ostringstream os;
os << n;
return os.str();
}
*/
/*struct coord
{
int x,y;
};
bool operator<(const coord &l, const coord &r)
{
return (l.x<r.x || (l.x==r.x && l.y<r.y));
}*/
/*void invers_modular(int a, int b, int& d, int& x, int & y)
{
if(!b)
{
d=a;
x=1;
y=0;
return ;
}
int x0, y0;
invers_modular(b, a%b, d, x0, y0);
x=y0;
y=x0-a/b*y0;
} // daca x<0 se aduna cu mod pana e mai mare, x fiind rezultatul*/
/*ull p(int baze, int exponent)
{
if(exponent==0)
return 1;
if(exponent%2==0)
return p(baze*baze, exponent/2);
else return baze*p(baze, exponent-1);
}*/
//ifstream fin("bellmanford.in"); /// modifica cu numele corespunzator
//ofstream fout("bellmanford.out"); /// modifica cu numele corespunzator
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
int v[100001], lungime[100001];
int radacina;
void compresie(int k)
{
while(v[k])
{
int aux = v[k];
v[k] = radacina;
k = aux;
}
}
int main()
{
FASTIO;
int n, m;
fin>>n>>m;
for1(i, m)
{
int o, x, y;
fin>>o>>x>>y;
int mlcx = x, mlcy = y;
if(o == 1)
{
while(v[x])
x = v[x];
while(v[y])
y = v[y];
if(!lungime[x])
lungime[x] = 1;
if(!lungime[y])
lungime[y] = 1;
if(lungime[x] >= lungime[y])
{
radacina = x;
v[y] = x;
lungime[x] += lungime[y];
lungime[y] = 0;
}
else
{
radacina = y;
v[x] = y;
lungime[y] += lungime[x];
lungime[x] = 0;
}
x = mlcx; y = mlcy;
compresie(x); compresie(y);
}
else
{
while(v[x])
x = v[x];
while(v[y])
y = v[y];
if(x == y)
fout<<"DA\n";
else fout<<"NU\n";
radacina = x;
x = mlcx;
compresie(x);
radacina = y;
y = mlcy;
compresie(y);
}
}
return 0;
}