Eroare de compilare: main.cpp: In function 'int main()': main.cpp:12:5: error: 'cin' was not declared in this scope 12 | cin >> n; | ^~~ 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:31:13: error: 'cout' was not declared in this scope 31 | cout << mat[i][j] << " "; | ^~~~ main.cpp:31:13: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? main.cpp:33:9: error: 'cout' was not declared in this scope 33 | cout << '\n'; | ^~~~ main.cpp:33:9: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? Non zero exit status: 1