Compilare: user.cpp: In function ‘int main()’: user.cpp:54:65: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = LSP[BT[i]][BT[i-1]]; k < Txt[BT[i]].length(); ++k) ^ user.cpp: In function ‘void RemoveIntern()’: user.cpp:74:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, k = 0; i < Txt.size(); ++i, ++k) ^ user.cpp: In function ‘int main()’: user.cpp:51:26: warning: ‘ind’ may be used uninitialized in this function [-Wmaybe-uninitialized] MakeBT(ind, (1<<N)-1); ^