Compilare: user.cpp: In function ‘void built_match_table(std::vector<int>&, std::string)’: user.cpp:16:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < pattern.size()) { ^ user.cpp: In function ‘void AlgKMP(std::vector<int>&, std::string, std::string)’: user.cpp:38:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (i < text.size()) { ^ user.cpp:43:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == pattern.size()) { ^ user.cpp:48:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (i < text.size() && pattern[j] != text[i]) { ^