Compilare: user.cpp: In function ‘void citire()’: user.cpp:19:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x, y, pret; ^ user.cpp: In function ‘int valid(int)’: user.cpp:44:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void calcul(int)’: user.cpp:50:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void bkt(int)’: user.cpp:61:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘int main()’: user.cpp:78:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k; ^