Compilare: user.cpp: In function ‘int steps(int, int, int, int, int)’: user.cpp:27:21: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:27:41: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:27:59: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:27:68: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:27:95: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:27:108: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if(x >= x0+(1<<k-1) && y >= y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1)*2 + steps(k-1, x0+(1<<k-1), y0+(1<<k-1), x, y); ^ user.cpp:28:27: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x >= x0+(1<<k-1) && y < y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1) + steps(k-1, x0+(1<<k-1), y0, x, y); ^ user.cpp:28:46: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x >= x0+(1<<k-1) && y < y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1) + steps(k-1, x0+(1<<k-1), y0, x, y); ^ user.cpp:28:64: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x >= x0+(1<<k-1) && y < y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1) + steps(k-1, x0+(1<<k-1), y0, x, y); ^ user.cpp:28:73: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x >= x0+(1<<k-1) && y < y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1) + steps(k-1, x0+(1<<k-1), y0, x, y); ^ user.cpp:28:98: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x >= x0+(1<<k-1) && y < y0+(1<<k-1) ) return (1<<k-1)*(1<<k-1) + steps(k-1, x0+(1<<k-1), y0, x, y); ^ user.cpp:29:26: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x < x0+(1<<k-1) && y < y0+(1<<k-1) ) ^ user.cpp:29:45: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] else if( x < x0+(1<<k-1) && y < y0+(1<<k-1) ) ^ user.cpp:46:24: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] yb = y0 + (1<<k-1); ^ user.cpp:47:24: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] x0 = x0 + (1<<k-1) - 1; ^ user.cpp:59:21: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] return (1<<k-1)*(1<<k-1)*3 + steps(k-1, x0, y0, x, y); ^ user.cpp:59:30: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses]