Compilare: user.cpp: In function ‘std::vector<int> buildSuffixTable(const string&)’: user.cpp:26:50: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int k = 1, lt = 0, rt = 0; k < rP.size(); ++k) { ^ user.cpp:29:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i + k < rP.size() && rP[i] == rP[i + k]; ++i); ^ user.cpp:43:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = rt + 1; i < rP.size() && rP[i] == rP[i - k]; ++i); ^ user.cpp: In function ‘std::pair<int, std::vector<int> > strMatch(const string&, const string&)’: user.cpp:101:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j < P.size()) { ^ user.cpp:112:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (N[i] == i+1) { ^ user.cpp:134:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (numMatches <= matches.capacity()) { ^ user.cpp:140:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (j == P.size() - 1) { ^