creation of hard disc's disc defragmenter simulator

You are going to do the creation of hard disc's disc defragmenter simulator. You are going to create a c++ program that simulates disc defragmenter . The simulator should do these operations : 1)to simulate hard disc with a relevant data structure , example an array of sectors/blocks of a specific size :example 1 Byte. 2) show visually the fragmented disc (for this task we can use 2 types of simple characters , where each of characters will show a block when it is free or busy ) 3) to do these operations : write,delete and defragmentation of the disc data(and for these operations we must use the c++ dynamic lists)