Compilare: user.cpp: In function ‘void qsort(int, int)’: user.cpp:8:19: warning: unused variable ‘n’ [-Wunused-variable] int i=p,j=u,m,n; ^ user.cpp: In function ‘int main()’: user.cpp:42:13: warning: unused variable ‘k’ [-Wunused-variable] int i,n,k;double r; ^ user.cpp: In function ‘void qsort(int, int)’: user.cpp:17:21: warning: array subscript is above array bounds [-Warray-bounds] swap(v[2][i],v[2][j]); ^ user.cpp:17:29: warning: array subscript is above array bounds [-Warray-bounds] swap(v[2][i],v[2][j]); ^ user.cpp:17:21: warning: array subscript is above array bounds [-Warray-bounds] swap(v[2][i],v[2][j]); ^ user.cpp:17:29: warning: array subscript is above array bounds [-Warray-bounds] swap(v[2][i],v[2][j]); ^ user.cpp: In function ‘void divide(int, int, double&)’: user.cpp:27:56: warning: array subscript is above array bounds [-Warray-bounds] if(u-p==1) r=sqrt(pow((v[1][p]-v[1][u]),2)+pow((v[2][p]-v[2][u]),2)); ^ user.cpp:27:64: warning: array subscript is above array bounds [-Warray-bounds] if(u-p==1) r=sqrt(pow((v[1][p]-v[1][u]),2)+pow((v[2][p]-v[2][u]),2)); ^