Eroare de compilare: user.cpp: In function ‘void update(int, int, int, int, int)’: user.cpp:17: error: ‘arb’ was not declared in this scope user.cpp: In function ‘int query(int, int, int, int, int)’: user.cpp:29: error: ‘arb’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:80: error: ‘arb’ was not declared in this scope user.cpp:90: warning: suggest parentheses around ‘-’ inside ‘<<’ user.cpp:92: warning: suggest parentheses around ‘+’ inside ‘<<’