Compilare: main.cpp: In member function 'void ManacherCalculator::buildData()': main.cpp:22:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<src.size(); ++i) S += src[i], S += "#"; ~^~~~~~~~~~~ main.cpp: In member function 'void ManacherCalculator::runAlgorithm()': main.cpp:27:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1; i<S.size()-1; ++i) { ~^~~~~~~~~~~ main.cpp:30:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (DP[i] < src.size() && S[i+DP[i]+1] == S[i-DP[i]-1]) ++ DP[i];