Compilare: user.cpp: In function ‘int fcmp(const void*, const void*)’: user.cpp:24:55: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(((pp)a)->x>((pp)b)->x || (((pp)a)->x==((pp)b)->x) && (((pp)a)->y>((pp)b)->y)) ^ user.cpp:26:55: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(((pp)a)->x<((pp)b)->x || (((pp)a)->x==((pp)b)->x) && (((pp)a)->y<((pp)b)->y)) ^ user.cpp: In function ‘int fcmp2(const void*, const void*)’: user.cpp:32:57: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if((((pp)a)->y>((pp)b)->y) || (((pp)a)->y==((pp)b)->y) && (((pp)a)->x>((pp)b)->x)) ^ user.cpp:34:57: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if((((pp)a)->y<((pp)b)->y) || (((pp)a)->y==((pp)b)->y) && (((pp)a)->x<((pp)b)->x)) ^ user.cpp: In function ‘int main()’: user.cpp:143:21: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(k==nr || k<nr && vp[k].x>nx){ ^