Eroare de compilare: main.cpp: In function 'int main()': main.cpp:13:3: error: 'cin' was not declared in this scope 13 | cin.tie(0); | ^~~ main.cpp:2:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'? 1 | #include <fstream> +++ |+#include <iostream> 2 | main.cpp:37:3: error: 'cout' was not declared in this scope 37 | cout<<ans; | ^~~~ main.cpp:37:3: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? main.cpp:15:15: warning: unused variable 'suma' [-Wunused-variable] 15 | int st = 1, suma = 0, ans = 0; | ^~~~ Non zero exit status: 1