x=2
v[0]=0
v[1]=1
v[2]=2
v[3]=3
v[4]=4
a[0]=1.01709e+265
a[1]=2.94168e+264
a[2]=9.11727e+301
a[3]=1.42107e-309
a[4]=8.48802e-314
sizeof(v)/sizeof(v[0])=5
ann[400]=1