word counter

This will extract words from a file and keep track how many times word occurs.After inputting all the words in decending order of their frequency and output the words and thier frequency.This also do rehashing ,every time program does a insertion it check to see whether the table is more than 50% full after the insertion and if it is ,it reallocate a table of approximately twice the table size as before.Each time it rehash it print out the table-size the average number of probes and max number of probes for that table.It uses Quick Sort.