Borderou de evaluare (job #658448)

Eroare de compilare: main.cpp: In function 'int main()': main.cpp:10:11: error: 'cin' was not declared in this scope 10 | while(cin >> x){ | ^~~ main.cpp:2:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'? 1 | #include <fstream> +++ |+#include <iostream> 2 | using namespace std; main.cpp:22:5: error: 'cout' was not declared in this scope 22 | cout << expresie; | ^~~~ main.cpp:22:5: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? main.cpp:8:9: warning: unused variable 'k' [-Wunused-variable] 8 | int k, numar = 0, expresie = 0; | ^ main.cpp:9:10: warning: unused variable 'last' [-Wunused-variable] 9 | char last, x; | ^~~~