Compilare: user.cpp: In function ‘void bfs()’: user.cpp:34:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int diff = 0; diff < word.size(); ++diff) { ^ user.cpp:35:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int stare = 0; stare + diff < word.size(); ++stare) { ^ user.cpp: In function ‘void initialization()’: user.cpp:114:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < word.size(); ++i) { ^ user.cpp:115:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] letterPositions[word[i]] = i; ^ user.cpp:125:54: warning: array subscript is above array bounds [-Warray-bounds] int index = letterPositions[map[i][j]]; ^