Eroare de compilare: main.cpp:14:1: error: 'stack' does not name a type; did you mean 'obstack'? 14 | stack<int> q; | ^~~~~ | obstack main.cpp: In function 'int main()': main.cpp:19:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (int i = 0; i < s.size(); i++) { | ~~^~~~~~~~~~ main.cpp:21:13: error: 'q' was not declared in this scope 21 | q.push(i); | ^ main.cpp:23:18: error: 'q' was not declared in this scope 23 | rasp[q.top()] = i; | ^ Non zero exit status: 1