Compilare: user.cpp: In function ‘void Find(int)’: user.cpp:19:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Vec.size(); ++ i) ^ user.cpp:20:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < Vec.size(); ++ j) ^ user.cpp:26:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = j + 1; k < Vec.size(); ++ k) ^ user.cpp: In function ‘int main()’: user.cpp:65:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < G[Node].size(); ++ j) ^ user.cpp:71:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Vec.size(); ++ j) ^