Compilare: user.cpp: In function ‘int main()’: user.cpp:48:30: warning: unused variable ‘k’ [-Wunused-variable] int sol,x1,x2,y1,y2,a,i, j, k, p, step; ^ user.cpp:48:33: warning: unused variable ‘p’ [-Wunused-variable] int sol,x1,x2,y1,y2,a,i, j, k, p, step; ^ user.cpp:48:36: warning: unused variable ‘step’ [-Wunused-variable] int sol,x1,x2,y1,y2,a,i, j, k, p, step; ^