Borderou de evaluare (job #515338)

Compilare: user.cpp: In function 'int main()': user.cpp:97:43: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] user.cpp:199:40: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] user.cpp:11:9: warning: unused variable 'n' [-Wunused-variable] user.cpp:11:12: warning: unused variable 'a' [-Wunused-variable] user.cpp:11:20: warning: variable 'm' set but not used [-Wunused-but-set-variable] user.cpp:11:23: warning: variable 'o' set but not used [-Wunused-but-set-variable]