Compilare: main.cpp: In function 'int main()': main.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(int i=a.size()+1;i<s.size();++i) | ~^~~~~~~~~ main.cpp:26:12: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | if(z[i]==a.size()) poz.push_back(i-a.size()-1);