Eroare de compilare: main.cpp: In function 'int main()': main.cpp:13:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(int i = 0;i < s.size();i++) | ~~^~~~~~~~~~ main.cpp:16:5: error: 'cout' was not declared in this scope 16 | cout<<ans; | ^~~~ main.cpp:2:1: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? 1 | #include <fstream> +++ |+#include <iostream> 2 | Non zero exit status: 1