Compilare: user.cpp: In function ‘void citire()’: user.cpp:11:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, x, y, pret; ^ user.cpp: In function ‘int valid(int)’: user.cpp:36:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void bkt(int)’: user.cpp:42:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘int main()’: user.cpp:64:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, k; ^ user.cpp:64:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, k; ^ user.cpp:64:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k; ^