Compilare: user.cpp: In function ‘int poza(int, int)’: user.cpp:30:7: warning: statement has no effect [-Wunused-value] ld-+dd; ^ user.cpp: In function ‘int pozb(int, int)’: user.cpp:60:7: warning: statement has no effect [-Wunused-value] ld-+dd; ^ user.cpp: In function ‘int main()’: user.cpp:94:6: warning: unused variable ‘sem’ [-Wunused-variable] int sem; ^