Programming Forums > Application Development > C

sinix · Nov 8th, 2005, 7:02 AM

Can you figure out what this program is doing?

#include <stdlib.h>
#include <stdio.h>

long a=10000,b,c=2800,d,e,f[2801],g;

main()
{
for(;b-c;)
f[b++]=a/5;
for(;d=0,g=c*2;c-=14,printf("%.4d",e+d/a),e=d%a)
for(b=c;d+=f[b]*a,f[b]=d%--g,d/=g--,--b;d*=b);
}

bivhitscar · Nov 8th, 2005, 7:09 AM

I know what it does, but only because I compiled it. I'd be interested to see if anyone can figure it out without doing that.

sinix · Nov 8th, 2005, 7:17 AM

the man wrote this program is a super maaaan,I think: ( hohoo

zorin · Nov 8th, 2005, 7:18 AM

Do you know what this is doing or are you disguising it as a homework question you have been given?

bivhitscar · Nov 8th, 2005, 7:20 AM

Quote:

Originally Posted by zorin

Do you know what this is doing or are you disguising it as a homework question you have been given?

It's not hard to figure out if you compile it. *shrug*

Although, don't expect an explanation of how it works. :p

Polyphemus_ · Nov 8th, 2005, 7:25 AM

i'm wondering how it works as well

sinix · Nov 8th, 2005, 7:29 AM

It's not my homework.I heard that this is a best program in a programming competition,so i post it here.

Dizzutch · Nov 8th, 2005, 7:31 AM

www.ioccc.org for more obfuscated C code.

zorin · Nov 8th, 2005, 7:46 AM

I was going to comple it but im at college and we dont have any good software. Ill check it out when im home and post back

ivan · Nov 8th, 2005, 7:58 AM

the program output is:

31415926535897932384626433832795028841971693993751058209749445923078164062862089
98628034825342117067982148086513282306647093844609550582231725359408128481117450
28410270193852110555964462294895493038196442881097566593344612847564823378678316
52712019091456485669234603486104543266482133936072602491412737245870066063155881
74881520920962829254091715364367892590360011330530548820466521384146951941511609
43305727036575959195309218611738193261179310511854807446237996274956735188575272
48912279381830119491298336733624406566430860213949463952247371907021798609437027
70539217176293176752384674818467669405132000568127145263560827785771342757789609
17363717872146844090122495343014654958537105079227968925892354201995611212902196
08640344181598136297747713099605187072113499999983729780499510597317328160963185

what is so good there???

Nov 8th, 2005, 7:02 AM	#1
sinix Programmer Join Date: Nov 2005 Location: China Posts: 47 Rep Power: 0	An Amazing Program,come and have a look : ) Can you figure out what this program is doing? (Toggle Plain Text) #include <stdlib.h> #include <stdio.h> long a=10000,b,c=2800,d,e,f[2801],g; main() { for(;b-c;) f[b++]=a/5; for(;d=0,g=c2;c-=14,printf("%.4d",e+d/a),e=d%a) for(b=c;d+=f[b]a,f[b]=d%--g,d/=g--,--b;d=b); } #include <stdlib.h> #include <stdio.h> long a=10000,b,c=2800,d,e,f[2801],g; main() { for(;b-c;) f[b++]=a/5; for(;d=0,g=c2;c-=14,printf("%.4d",e+d/a),e=d%a) for(b=c;d+=f[b]a,f[b]=d%--g,d/=g--,--b;d=b); }

Nov 8th, 2005, 7:09 AM	#2
bivhitscar Hobbyist Programmer Join Date: Oct 2005 Location: Melbourne, Australia Posts: 126 Rep Power: 3	I know what it does, but only because I compiled it. I'd be interested to see if anyone can figure it out without doing that. __________________ it's ironic considerate rarity patron of love higher knowledge engulfs me...

Nov 8th, 2005, 7:31 AM	#8
Dizzutch Professional Programmer Join Date: Dec 2004 Location: Worcester, MA Posts: 441 Rep Power: 4	www.ioccc.org for more obfuscated C code. __________________ naked pictures of you \| PFO F@H stats

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Nov 8th, 2005, 7:17 AM	#3
sinix Programmer Join Date: Nov 2005 Location: China Posts: 47 Rep Power: 0	the man wrote this program is a super maaaan,I think: ( hohoo

Nov 8th, 2005, 7:18 AM	#4
zorin Hobbyist Programmer Join Date: Apr 2005 Posts: 218 Rep Power: 4	Do you know what this is doing or are you disguising it as a homework question you have been given?

Nov 8th, 2005, 7:25 AM	#6
Polyphemus_ Expert Programmer Join Date: Aug 2005 Location: Rotterdam, the Netherlands Posts: 942 Rep Power: 4	i'm wondering how it works as well

Nov 8th, 2005, 7:29 AM	#7
sinix Programmer Join Date: Nov 2005 Location: China Posts: 47 Rep Power: 0	It's not my homework.I heard that this is a best program in a programming competition,so i post it here.

Nov 8th, 2005, 7:46 AM	#9
zorin Hobbyist Programmer Join Date: Apr 2005 Posts: 218 Rep Power: 4	I was going to comple it but im at college and we dont have any good software. Ill check it out when im home and post back

Nov 8th, 2005, 7:58 AM	#10
ivan Professional Programmer Join Date: Sep 2005 Location: serbia & montenegro Posts: 484 Rep Power: 4	the program output is: 31415926535897932384626433832795028841971693993751058209749445923078164062862089 98628034825342117067982148086513282306647093844609550582231725359408128481117450 28410270193852110555964462294895493038196442881097566593344612847564823378678316 52712019091456485669234603486104543266482133936072602491412737245870066063155881 74881520920962829254091715364367892590360011330530548820466521384146951941511609 43305727036575959195309218611738193261179310511854807446237996274956735188575272 48912279381830119491298336733624406566430860213949463952247371907021798609437027 70539217176293176752384674818467669405132000568127145263560827785771342757789609 17363717872146844090122495343014654958537105079227968925892354201995611212902196 08640344181598136297747713099605187072113499999983729780499510597317328160963185 what is so good there???

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > C

An Amazing Program,come and have a look : )