Compilare: user.cpp: In function ‘void update(int, int, int)’: user.cpp:43:36: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] col += (col^(col-1)&col); ^ user.cpp:45:25: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] x+= (x^(x-1)&x); ^ user.cpp: In function ‘int query(int, int)’: user.cpp:59:36: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] col -= (col^(col-1)&col); ^ user.cpp:61:26: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] x -= (x^(x-1)&x); ^