Compilare: user.cpp: In function ‘int main()’: user.cpp:40:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,T,x1,x2,y1,y2,minim,x; ^ user.cpp:40:27: warning: unused variable ‘minim’ [-Wunused-variable] int i,j,T,x1,x2,y1,y2,minim,x; ^ user.cpp:40:33: warning: unused variable ‘x’ [-Wunused-variable] int i,j,T,x1,x2,y1,y2,minim,x; ^ user.cpp: In function ‘int memo(int, int, int, int)’: user.cpp:36:1: warning: control reaches end of non-void function [-Wreturn-type] } ^