Compilare: user.cpp: In function ‘void update(int, int, int)’: user.cpp:47:36: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] col += (col^(col-1)&col); ^ user.cpp:49:25: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] x+= (x^(x-1)&x); ^ user.cpp: In function ‘int query(int, int)’: user.cpp:63:36: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] col -= (col^(col-1)&col); ^ user.cpp:65:26: warning: suggest parentheses around arithmetic in operand of ‘^’ [-Wparentheses] x -= (x^(x-1)&x); ^