Compilare: user.cpp: In function ‘std::vector<int> makePrefix(std::string)’: user.cpp:10:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 2; i <= pattern.length(); i++) { ^ user.cpp: In function ‘std::vector<int> kmp(std::string, std::string)’: user.cpp:26:53: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int indexText = 0; indexText < text.length(); indexText++) { ^ user.cpp:33:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(indexPattern == pattern.length()) { ^