Compilare: main.cpp: In function 'void solve()': main.cpp:84:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(parts == words.size()) ~~~~~~^~~~~~~~~~~~~~~ main.cpp:89:36: warning: 'right' may be used uninitialized in this function [-Wmaybe-uninitialized] out << left << " " << right << '\n'; ^~~~ main.cpp:89:20: warning: 'left' may be used uninitialized in this function [-Wmaybe-uninitialized] out << left << " " << right << '\n'; ^~~