**Differences from Minimal BASIC**

The following modifications are needed for programs written in Minimal BASIC.

These are due to the incompatibilities between the Minimal BASIC standard and the Full BASIC standard.

- When OPTION BASE is not written, option base is assumed to be 1 on Full BASIC while it is assumed to be 0 on Minimal BASIC.

If arrays need indices 0, add

`OPTION BASE 0`

at the beginning.

- Full BASIC demands all arrays to be declared.

For all arrays not declared, add declarations such as

DIM A(10),B(10),C(10)

Refer to Automated Correction