Compilare: main.cpp: In function 'int simil(std::__cxx11::string, std::__cxx11::string)': main.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(identice <= a.length()-1 && identice <= b.length()-1 && a[a.length()-1-identice] == b[b.length()-1-identice]) ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:34:48: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(identice <= a.length()-1 && identice <= b.length()-1 && a[a.length()-1-identice] == b[b.length()-1-identice]) ~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < cuv.size(); i++) { ~~^~~~~~~~~~~~ main.cpp:45:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i+1; j < cuv.size() ; j++) ~~^~~~~~~~~~~~