Compilare: main.cpp: In function 'bool comp(punct, punct)': main.cpp:14:109: warning: suggest parentheses around '&&' within '||' [-Wparentheses] return ((a.y-miny)*(b.x-minx) < (b.y-miny)*(a.x-minx) || (a.y-miny)*(b.x-minx) == (b.y-miny)*(a.x-minx) && (a.x-minx)*(a.x-minx) + (a.y-miny)*(a.y-miny) > (b.x-minx)*(b.x-minx) + (b.y-miny)*(b.y-miny)); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:27:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(P[i].y < miny || P[i].y == miny && P[i].x < minx) miny = P[i].y, minx=P[i].x; ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~