Compilare: user.cpp: In function ‘void cerinta2()’: user.cpp:71:24: warning: unused variable ‘u’ [-Wunused-variable] int v, i, x, y, p, u, g, k, xn, yn, xs, ys; ^ user.cpp:71:30: warning: unused variable ‘k’ [-Wunused-variable] int v, i, x, y, p, u, g, k, xn, yn, xs, ys; ^ user.cpp:71:33: warning: unused variable ‘xn’ [-Wunused-variable] int v, i, x, y, p, u, g, k, xn, yn, xs, ys; ^ user.cpp:71:37: warning: unused variable ‘yn’ [-Wunused-variable] int v, i, x, y, p, u, g, k, xn, yn, xs, ys; ^