Compilare: user.cpp: In function ‘int Search(std::string, std::string)’: user.cpp:41:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (answer == string::npos) ^ user.cpp: In function ‘long long int TwoPieces(std::string)’: user.cpp:62:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (secondString.size() > j) ^ user.cpp:66:55: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 0; k < secondString.size(); k++) ^ user.cpp: In function ‘long long int MorePieces(std::string)’: user.cpp:89:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (long long k = value; temp.size() <= n; k++) ^ user.cpp:97:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (index < temp.size()) ^