Compilare: main.cpp: In function 'int getNr()': main.cpp:180:28: warning: array subscript has type 'char' [-Wchar-subscripts] while(isDigit[x[crChar]] == 0) ^ main.cpp:184:42: warning: array subscript has type 'char' [-Wchar-subscripts] while(crChar < n && isDigit[x[crChar]] == 1) ^ main.cpp: In function 'void ansQues()': main.cpp:261:23: warning: 'tmp2.std::pair<nod*, nod*>::first' may be used uninitialized in this function [-Wmaybe-uninitialized] rad = join(tmp.first, join(tmp2.first, tmp2.second)); ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~