Compilare: main.cpp: In member function 'void RollingHash::initHash(const string&)': main.cpp:27:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<s.size(); i++) ~^~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:78:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = pattern.size(); i < text.size(); i++) ~~^~~~~~~~~~~~~ main.cpp: In function 'void afisare()': main.cpp:95:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i<sol.size(); i++) ~^~~~~~~~~~~