Compilare: main.cpp: In function 'int main()': main.cpp:37:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (int j=0; j<s.size(); j++) | ~^~~~~~~~~ main.cpp:54:15: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] 54 | memset(vf,0,205); | ~~~~~~^~~~~~~~~~