Compilare: user.cpp: In function ‘int main()’: user.cpp:13:9: warning: unused variable ‘v’ [-Wunused-variable] int v[60][60], n, x, y, i, j, d, a, pas=1; ^ user.cpp:13:32: warning: unused variable ‘j’ [-Wunused-variable] int v[60][60], n, x, y, i, j, d, a, pas=1; ^ user.cpp:13:41: warning: unused variable ‘pas’ [-Wunused-variable] int v[60][60], n, x, y, i, j, d, a, pas=1; ^ user.cpp:15:9: warning: unused variable ‘dx’ [-Wunused-variable] int dx[]={-1, 0, 1, 0}; ^ user.cpp:16:9: warning: unused variable ‘dy’ [-Wunused-variable] int dy[]={0, 1, 0, -1}; ^