Compilare: main.cpp: In function 'int main()': main.cpp:34:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int j = 0; j < cuv.length(); ++j) { | ~~^~~~~~~~~~~~~~ main.cpp:47:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for(int i = 1; i < v.size(); ++i) { | ~~^~~~~~~~~~