Compilare: user.cpp: In function ‘int main()’: user.cpp:86:70: warning: value computed is not used [-Wunused-value] for(int i=min(s1.x,t.x)+(dx1/d1), j=min(s1.y,t.y)+(dx1/d1); i<=max(s1.x,t.x),j<=max(s1.y,t.y); i+=(dx1/d1),j+=(dy1/d1)) ^ user.cpp:92:70: warning: value computed is not used [-Wunused-value] for(int i=min(s2.x,t.x)+(dx2/d2), j=min(s2.y,t.y)+(dx2/d2); i<=max(s2.x,t.x),j<=max(s2.y,t.y); i+=(dx2/d2),j+=(dy2/d2)) ^