Compilare: user.cpp: In function ‘void add(int, int)’: user.cpp:2:30: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define bit(x) ((x ^ (x - 1) & x)) ^ user.cpp:9:25: note: in expansion of macro ‘bit’ for(int i=x;i<=n;i+=bit(i)) ^ user.cpp: In function ‘int suma(int)’: user.cpp:2:30: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] #define bit(x) ((x ^ (x - 1) & x)) ^ user.cpp:14:24: note: in expansion of macro ‘bit’ for(int i=x;i>0;i-=bit(i)) ^