Created
March 8, 2014 04:43
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1094 - Virtual Friends
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#include <iostream> | |
#include <vector> | |
#include <map> | |
using namespace std; | |
char n1[21], n2[21]; | |
int p = 1; | |
map<string, int> mapa; | |
vector<int> namistades; | |
vector<int> padres; | |
int root(int hijo){ | |
int padre = 0; | |
if(padres[hijo] != hijo){ | |
padres[hijo] = root(padres[hijo]); | |
} | |
return padres[hijo]; | |
} | |
int join(int i1, int i2){ | |
int p1 = root(i1); | |
int p2 = root(i2); | |
if(p1 != p2){ | |
padres[p1] = padres[p2]; | |
namistades[p2] += namistades[p1]; | |
} | |
return namistades[p2]; | |
} | |
int main(){ | |
int t, F; | |
cin >> t; | |
while(t--){ | |
cin >> F; | |
namistades.clear(); | |
padres.clear(); | |
mapa.clear(); | |
p = 1; | |
namistades.insert(namistades.end(),0); | |
padres.insert(padres.end(),0); | |
while( F--){ | |
cin >> n1 >> n2; | |
if(mapa[n1] == 0){ | |
mapa[n1] = p; | |
padres.insert(padres.end(),p); | |
namistades.insert(namistades.end(),1); | |
p++; | |
} | |
if(mapa[n2] == 0){ | |
mapa[n2] = p; | |
padres.insert(padres.end(),p); | |
namistades.insert(namistades.end(),1); | |
p++; | |
} | |
cout << join(mapa[n1],mapa[n2]) << endl; | |
} | |
} | |
return 0; | |
} |
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