Compilare: main.cpp: In function 'int simil(std::__cxx11::string, std::__cxx11::string)': main.cpp:27:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < a.length(); i++) ~~^~~~~~~~~~~~ main.cpp:29:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j <= b.length(); j++) ~~^~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < cuv.size(); i++) { ~~^~~~~~~~~~~~ main.cpp:44:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i+1; j < cuv.size() ; j++) ~~^~~~~~~~~~~~