Cod sursa(job #2933233)

Utilizator mihnea.cazan15mihnea cazan mihnea.cazan15 Data 4 noiembrie 2022 21:35:02
Problema Paduri de multimi disjuncte Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.93 kb
#include <bits/stdc++.h>
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define ll long long

using namespace std;
unsigned seed=chrono::system_clock::now().time_since_epoch().count();
mt19937 rng(seed);
#define rand() rng()
/*const long long mod = 998244353;
long long fct[200005],invfct[200005],inv[200005];
long long put2[200005];
long long lgput (long long a, long long exp)
{
    long long rz=1;
    while(exp)
        if(exp&1)
            exp^=1,rz=rz*1LL*a%mod;
        else
            exp>>=1,a=a*1LL*a%mod;
    return rz;
}
long long cmb (long long n, long long k)
{
    if(n<k || k<0 || n<0)
        return 0;
    return fct[n]*1LL*invfct[k]%mod*1LL*invfct[n-k]%mod;
}
void init ()
{
    inv[1]=fct[0]=fct[1]=invfct[0]=invfct[1]=put2[0]=1,put2[1]=2;
    for(long long i=2;i<=200000;++i)
        put2[i]=put2[i-1]*2LL%mod,inv[i]=(mod-mod/i)*1LL*inv[mod%i]%mod,fct[i]=i*1LL*fct[i-1]%mod,invfct[i]=inv[i]*1LL*invfct[i-1]%mod;
}
long long v[200005];*/
#include <fstream>
ifstream fin("disjoint.in");
ofstream fout("disjoint.out");
const int N=2e5+5;
int t[N],h[N];
int root(int x)
{
    if(!t[x])
       return x;
    return root(t[x]);
}
bool ok(int x,int y)
{
    return root(x)==root(y);
}
void unite(int x,int y)
{
    int rx=root(x);
    int ry=root(y);
    if(h[rx]<h[ry])
       h[ry]+=h[rx],t[rx]=ry;
    else
        h[rx]+=h[ry],t[ry]=rx;
}
void solve()
{
    int n,q;
    fin>>n>>q;
    for(int i=1;i<=n;i++)
        h[i]=1;
    while(q--)
    {
        int type,x,y;
        fin>>type>>x>>y;
        if(type==1)
           unite(x,y);
        else
        {
            if(ok(x,y))
               fout<<"DA\n";
            else
                fout<<"NU\n";
        }
    }
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t=1;
    //cin>>t;
    while(t--)
        solve();
    return 0;
}