Session expiration Your session is going to expireClick here to extend


Small project <800

Posted on

2012-10-07 13:04:26.0



This project is complete

Someone on twago has already accepted this project. Find a project of your own, sign up today!

Post similar project now


I need a program that will run under Delphi 7, with source code provided, that will remove all duplicate lines from an ASCII text file.

The utility must be able to handle files that contain over 2 million lines of text and that will not exhaust the memory of a PC with 4 gigabytes of RAM.

IOW, assuming the file contains 12 lines of data, like this:

aa ccde aa cxy y ccde huisk aaa ccde huisk huisk xiops rtwpo y

...I would want the output to be in one of two optional formats:


aa aaa ccde cxy huisk rtwpo xiops y  


aa ccde cxy y huisk aaa xiops rtwpo

The program should not be able to perform either of the above tasks with a 2 million line file in less than 10 minutes. Some sort of visual progress indicator should be included so that the user can have an idea of how the task is progressing.