Compilare: main.cpp: In function 'std::vector<int> build_lps(const string&, const string&)': main.cpp:8:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1, m = 0; i < pattern.size(); ++i) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> kmp(const string&, const string&)': main.cpp:25:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0, j = 0; j < text.size();) { ~~^~~~~~~~~~~~~ main.cpp:34:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == pattern.size()) { ~~^~~~~~~~~~~~~~~~~