Compilare: main.cpp: In function 'll digitdp(ll, ll, ll, ll, std::__cxx11::string)': main.cpp:11:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(idx == s.size()) { ~~~~^~~~~~~~~~~ main.cpp: In function 'll diferenta(std::__cxx11::string, std::__cxx11::string)': main.cpp:35:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < str1.size();i++) ~~^~~~~~~~~~~~~ main.cpp:37:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < str2.size();i++) ~~^~~~~~~~~~~~~