Compilare: user.cpp: In function ‘void add(var, var)’: user.cpp:22:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(Pos[father] == Paths[In[father]].size() - 1) ^ user.cpp: In function ‘int main()’: user.cpp:48:15: warning: unused variable ‘type’ [-Wunused-variable] var n, m, type, x, y, cur = 0; ^ user.cpp:48:27: warning: unused variable ‘cur’ [-Wunused-variable] var n, m, type, x, y, cur = 0; ^ user.cpp:55:9: warning: unused variable ‘root’ [-Wunused-variable] var root = 1; ^