Compilare: user.cpp: In function ‘int main()’: user.cpp:17:9: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>A+1>>B+1; ^ user.cpp:17:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>A+1>>B+1; ^ user.cpp:15:18: warning: unused variable ‘i’ [-Wunused-variable] register int i,j; ^ user.cpp:15:20: warning: unused variable ‘j’ [-Wunused-variable] register int i,j; ^