spoj__frirndcircle.cpp

#include <bits/stdc++.h>

#define ll long long

#define ld long double

#define endl '\n'

#define vll vector<ll>

#define vvll vector< vll >

#define Cout(x)        cout << #x << " " << x << endl

#define pll pair<ll ,ll >

#define vpll vector< pll >

#define mp make_pair

#define pb push_back

#define MOD 1000000007

#define inf 1e18;

#define vfind(v,x) (find(all(v),x) != (v).end())

#define clr(c) (c).clear()

#define cres(c,n) (c).clear(),(c).resize(n)

#define ios ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)

#define all(v) v.begin(),v.end()

#define rall(v) v.rbegin(),v.rend()

#define fst first

#define scd second

#define eb(a) emplace_back(a)

#define ef(a) emplace_front(a)

#define fr(i,n) for(ll (i) = 0 ; (i) < (n) ; ++(i))

#define fr1(i,n) for(ll (i) = 1 ; (i) <= (n) ; ++(i))

#define frr(i,n) for(ll (i) = (n)-1 ; (i)>=0 ; --(i))

#define frab(i,a,b,c) for(ll (i) = a ; (i) <= (b) ; (i)+=(c))



#define mst(A) memset( (A) , 0 , sizeof(A) );


using namespace std;


void write(vll &oneD){

	for(ll i=0;i<oneD.size();i++){

		printf("%lld ",oneD[i]);

	}

	printf("\n");

}

void write(vvll &twoD){

	for(ll i=0;i<twoD.size();i++){

		write(twoD[i]);

	}

}

void write(vpll &oneDP){

	fr(i,oneDP.size()){

		printf("%lld %lld\n" , oneDP[i].fst , oneDP[i].scd);

	}
	cout<<"\n";

}

void write(map< ll , ll > &mpp){

	for(map<ll , ll >::iterator it = mpp.begin() ; it != mpp.end() ; it++){

		cout<<it->fst<<" : "<<it->scd<<endl;

	}

	cout<<endl;

}
bool cmp(const pair<ll,ll> &a,const pair<ll,ll> &b)
{
    if(a.first == b.first)
        return (a.scd >= b.scd);

    return (a.first < b.first);
}


vll seive;
vll primes;

void Seive(){

	const ll maxn = 100005;

	seive.resize(maxn);
	fr(i,maxn) seive[i] = 1;

	for(ll i=2;i*i<maxn;i++)
	{
	     if(seive[i]==1 )
            {
                for(ll j = i*i ; j <maxn ; j+=i)
                {
                         seive[j] = 0;
                }
            }
    }
	primes.pb(2);
	for(ll i=3;i<maxn;i+=2)
    {
        if(seive[i])
            primes.pb(i);
    }
}


ll isprime(ll N){
    if(N<2 || (!(N&1) && N!=2))
        return 0;
    for(ll i=3; i*i<=N; i+=2){
        if(!(N%i))
            return 0;
    }
    return 1;
}


ll power(ll x, ll y , ll m){

    long long int res = 1;

    x = x % m;

    while (y > 0)
    {
        // If y is odd, multiply x with result
        if (y & 1)
            res =(res*x)%MOD;

        // y must be even now
        y = y>>1; // y = y/2
        x = (x*x)%MOD;
    }
    return res;
}


ll modinv(ll x , ll mod = MOD){

	return power(x , mod - 2 , mod);

}
////////////////////////////////////////////////////////////////////////////////


ll A[1000005];
ll B[100001];
long long compute_hash(string const& s) {
    const int p = 59;
    const int m = 1e9 + 9;
    long long hash_value = 0;
    long long p_pow = 1;
    for (char c : s) {
        hash_value = (hash_value + (c - 'a' + 1) * p_pow) % m;
        p_pow = (p_pow * p) % m;
    }
    return hash_value;
}
unordered_map<string,string> par;
map<string,ll> siz;
string s[100005];
string s1[100005];
void init(ll n )
{
    fr(i,n)
    {
        siz[s[i]]=1;
        siz[s1[i]]=1;
        par[s[i]]=s[i];
         par[s1[i]]=s1[i];
    }

}


string find_root(string x)
{
    if(x== par[x])
return par[x];
par[x]=find_root(par[x]);
return par[x];

}
void make_union(string n, string m)
{
    par[m]=n;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    #ifndef ONLINE_JUDGE
    freopen("allo.txt","r",stdin);
    #endif
      //  freopen("out.txt","w",stdout);




    ll a,b,c,d;
    ll k,l,m,n,p,q,r,t,x,y;


       cin>>t;while(t--){    map<string,ll> M;



        cin>>n;
        // init(n);
         par.clear();
         siz.clear();
        fr(i,n)
        {

            cin>>s[i]>>s1[i];
            if(!siz[s[i]])
            {
                par[s[i]]=s[i];
                siz[s[i]]=1;

            }
            if(!siz[s1[i]])
            {
                par[s1[i]]=s1[i];
                  siz[s1[i]]=1;
            }
            string pp=find_root(s[i]);
            string qq=find_root(s1[i]);
            if(pp!=qq)
            {
                make_union(pp,qq);
                siz[pp]+=siz[qq];



            }

             cout<<siz[pp]<<endl;







        }




       }




}