Compilare: user.cpp: In function ‘int main()’: user.cpp:19:12: warning: unused variable ‘x’ [-Wunused-variable] {int n,m,i,x,y,j; ^ user.cpp:19:14: warning: unused variable ‘y’ [-Wunused-variable] {int n,m,i,x,y,j; ^ user.cpp:43:13: warning: ‘q’ may be used uninitialized in this function [-Wmaybe-uninitialized] a[p]=a[q]; ^ user.cpp:42:13: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized] aux=a[p]; ^