Eroare de compilare: user.cpp: In function ‘void Union(int, int)’: user.cpp:25:5: error: ‘c’ was not declared in this scope c[x] += c[y]; ^ user.cpp: In function ‘int main()’: user.cpp:61:9: error: ‘c’ was not declared in this scope c[i] = 1; ^ user.cpp:76:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1;i < v.size();++i) ^