KöMaL - Középiskolai Matematikai és Fizikai Lapok
Sign In
Sign Up
 Magyar
Information
Contest
Journal
Articles

 

Problem S. 18. (May 2006)

S. 18. A large binary data file contains at least 200 million, 8-byte floating point numbers. Write a program to sort these numbers into ascending order and write them back into the file. At most 50 megabytes of memory can be used, and only the original file can be opened. Its size can not be altered. The required running time (depending on the size of the file) is about a few minutes.

The name of the data file is given in the command line, for example, issuing

s18.exe adatok.dat

should sort the file data.dat.

The source code and documentation of your program (s18.pas, s18.cpp,\ldots) should be submitted.

(10 pont)

Deadline expired on 15 June 2006.


Statistics:

4 students sent a solution.
10 points:Engedy Balázs, Grósz Dániel, Nikházy László.
7 points:1 student.

Our web pages are supported by:   Ericsson   Cognex   Emberi Erőforrás Támogatáskezelő   Emberi Erőforrások Minisztériuma   Nemzeti Tehetség Program    
MTA Energiatudományi Kutatóközpont   MTA Wigner Fizikai Kutatóközpont     Nemzeti
Kulturális Alap   ELTE   Morgan Stanley