Compilare: main.cpp: In function 'int main()': main.cpp:37:23: 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 i = 1; i < text.size() - lg + 1; i++) | ~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:42:21: warning: use of an operand of type 'bool' in 'operator++' is deprecated [-Wdeprecated] 42 | else M[nrb3]++; | ^~ main.cpp:24:10: warning: unused variable 'ant' [-Wunused-variable] 24 | char ant = 0; | ^~~