Eroare de compilare: user.cpp: In function ‘void Read()’: user.cpp:21:7: error: ‘n’ was not declared in this scope fin>>n>>m; ^ user.cpp:21:10: error: ‘m’ was not declared in this scope fin>>n>>m; ^ user.cpp:20:6: warning: unused variable ‘M’ [-Wunused-variable] int M, x, y; ^ user.cpp: In function ‘int main()’: user.cpp:45:22: error: ‘n’ was not declared in this scope for(int i = 1; i <= n; i++) ^