Eroare de compilare: main.cpp:4:1: error: 'ifstream' does not name a type 4 | ifstream cin("trompeta.in"); | ^~~~~~~~ main.cpp:5:1: error: 'ofstream' does not name a type 5 | ofstream cout("trompeta.out"); | ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:43:9: error: 'cin' was not declared in this scope 43 | cin >> n; | ^~~ main.cpp:3:1: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'? 2 | #include <cmath> +++ |+#include <iostream> 3 | main.cpp:70:9: error: 'cout' was not declared in this scope 70 | cout << concert; | ^~~~ main.cpp:70:9: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? Non zero exit status: 1