Eroare de compilare: user.cpp:4:11: error: variable ‘std::ifstream f’ has initializer but incomplete type ifstream f("pavare.in"); ^ user.cpp:5:11: error: variable ‘std::ofstream g’ has initializer but incomplete type ofstream g("pavare.out"); ^ user.cpp: In function ‘int main()’: user.cpp:19:64: warning: operation on ‘A[i][j]’ may be undefined [-Wsequence-point] A[i][j] = A[i][j] = A[i][j+1] = A[i+1][j+1] = 1; ^