The under 100 line challenge!

[fletch to 99]

The goal here is to make a useful program, that an end user is capable of using, that is under 100 lines! Ofcourse anything near 100 lines is awesome too, try to keep it fairly close though!

 

Please either link your source (if using an external site like pastie or github:gist) 

 

or

 

use code tags for example:

[code]Code here[ /code]

Here are some of my programs:

Biology Protein acronym converter: https://gist.github.com/fletchto99/5786050
Official LTT Story generator: https://gist.github.com/fletchto99/5786808

Screen Snapper: https://gist.github.com/fletchto99/5788659

[Guest]

Pinned :)

[fletch to 99]

Pinned :)

Thanks a ton! :) 

[That Ging3r Kid]

Here is my point slope calculator in Pascal. Sorry that I don't have it compiled yet (I'm working on my Windows machine, so I'm using my Linux PC)

 

https://sourceforge.net/projects/gingersmathform/files/?

[HEXiT]

although i like the idea. do we keep copyright?

[mkylem]

This is no issue if you don't care about how readable it is! :P

[deafboy]

Under 100 lines... does that include comments?

 

This might be fun :)

[Nicktendo]

Here is my point slope calculator in Pascal. Sorry that I don't have it compiled yet (I'm working on my Windows machine, so I'm using my Linux PC)

 

https://sourceforge.net/projects/gingersmathform/files/?

 

I love it! I'm thinking of recommending it to my next math teacher I get my senoir year! :)

[xxTigerShark]

At 105 lines, so close, so far away.

 

Edit: Remembered one, Distance Formula, Slope, and Mid Point calculator.

Made for mac. No link because I just don't feel like uploading it tonight.

Edited June 15, 2013 by xxTigerShark

[12355616511651]

I can make the most useful program in 1 line. Remove all white spaces ^-^. 

[coder-guy22296]

here is the pretty version: https://docs.google.com/file/d/0B0N8oqtmHVglbVdyQmJRUWp5bUk/edit?usp=sharing

 

 

------------{asks user for number}-------------print("type a number")      local input = tonumber(io.read())----------{split number into digits within a table}----------- local Digit = {tonumber(string.sub(input, 1, 1)), tonumber(string.sub(input, 2, 2)), tonumber(string.sub(input, 3, 3))}local length = string.len(input)--------------{convert to number}--------------     local lengthNumber = tonumber(length)-----------{writing out the number}------------if lengthNumber == 1 thenif tonumber(input) == 1 thenio.write("One\n")endif tonumber(input) == 2 thenio.write("Two\n")endif tonumber(input) == 3 thenio.write("Three\n")endif tonumber(input) == 4 thenio.write("Four\n")endif tonumber(input) == 5 thenio.write("Five\n")endif tonumber(input) == 6 thenio.write("Six\n")endif tonumber(input) == 7 thenio.write("Seven\n")endif tonumber(input) == 8 thenio.write("Eight\n")endif tonumber(input) == 9 thenio.write("Nine\n")endendif (lengthNumber == 2 and Digit[1] == 1) thenif Digit[2] == 0 thenio.write("Ten\n")endif Digit[2] == 1 thenio.write("Eleven\n")endif Digit[2] == 2 thenio.write("Twelve\n")endif Digit[2] == 3 thenio.write("Thirteen\n")endif Digit[2] == 4 thenio.write("Fourteen\n")endif Digit[2] == 5 thenio.write("Fifteen\n")endif Digit[2] == 6 thenio.write("Sixteen\n")endif Digit[2] == 7 thenio.write("Seventeen\n")endif Digit[2] == 8 thenio.write("Eighteen\n")endif Digit[2] == 9 thenio.write("Nineteen\n")endendif (lengthNumber == 2 and Digit[1] == 2) thenio.write("Twenty")if Digit[2] == 1 thenio.write("One\n")endif Digit[2] == 2 thenio.write("Two\n")endif Digit[2] == 3 thenio.write("Three\n")endif Digit[2] == 4 thenio.write("Four\n")endif Digit[2] == 5 thenio.write("Five\n")endif Digit[2] == 6 thenio.write("Six\n")endif Digit[2] == 7 thenio.write("Seven\n")endif Digit[2] == 8 thenio.write("Eight\n")endif Digit[2] == 9 thenio.write("Nine\n")endend

 

LUA

 

this is my first real world application program, however it is not finished it only accepts integers 1-29., it probably could be under 100 lines, but i like to make my code readable. had trouble with the if, else, elseif and a few other small mistakes, but my friend Austin helped me out like the good friend that he is

[fletch to 99]

I can make the most useful program in 1 line. Remove all white spaces ^-^. 

 

[Nathan4567a]

Here is a converter that takes any US measurement (like feet or miles) and converts it into inches, feet, yards, and miles and displays them all to the user. Its really useful to do quick and easy conversions. It could easily be adapted to metric also.

 

https://gist.github.com/LernerProductions/5786703

 

[fletch to 99]

I've updated one of my other programs making it more user friendly. Its the official LTT story maker! Found on this thread: http://linustechtips.com/main/topic/20796-continue-the-story-by-adding-5-words-results/

 

Source: https://gist.github.com/fletchto99/5786808

[Antoin315]

calculates monthly payment for a loan, given loan amount, APR, and loan term. Source: https://gist.github.com/anonymous/5787834

[JonnyCapOne]

[deleted]

[Cheesebaron]

Is it allowed to use external libraries? Also, how do you count lines? For instance you can just cramp up all your code on one line if the language uses delimiters such as ;{}()[]

[Guest Gazzer96]

Does a program which says "hi" in the command prompt count as useful?

[lone]

Stuck for ideas but here's one that converts text to phonetic alphabet 

[MikeD]

The usefulness of this program is very debatable, but here it is: https://gist.github.com/migueldferreira/e634a8c80bb4af5c258b

 

It's a love calculator that gives you a percentage of the love one person feels for another based on their first name! Silly childhood games!

[UselessBread]

I did this script for opening a random gif. That is my third program or so. Currently only works on OSX, however as you can see there is some stuff for windows, however unfinished.

http://pastebin.com/9RGEcAuY

[SenpaiSilver]

I had to use a program to launch another program (that I wrote) and that sent commands to it.

Since the STDOUT and STDERR were catched in a pipe and used by the host program, I wrote this script to create named pipe to do real time debugging.

I just had to have it launched in another console.

Then is my program I just had to open the named pipe like a regular file and close it.

The code: http://pastebin.com/THNuTDDp

This was for Linux, I don't think Windows has named pipes.

[Joe4evr]

This is a program I made in C# that allows a user to either search for 2 files that have the same name but have different extensions OR has a file with the first extension but not with the second one. Very useful when you're working with files that are (to be) converted from one format to another and the directory tree is huge.

using System;using System.IO;using System.Linq;namespace matchfinder{	class Program	{		static void Main(string[] args)		{			if (args.Length < 3)			{				Console.WriteLine("Not enough arguments supplied.");				return;			}			else if(!Directory.Exists(args[0]))			{				Console.WriteLine("Target directory doesn't exist.");				return;			}			int i = 0;			if (args.Length == 4 && (args[3] == "and" || args[3] == "not"))			{				FindMatchingFiles(args[0], args[1], args[2], ref i, args[3]);			}			else			{				FindMatchingFiles(args[0], args[1], args[2], ref i);			}			Console.WriteLine("Found a total of " + i + " matches.");		}		static void FindMatchingFiles(string basedir, string ext1, string ext2, ref int count, string op = "and")		{			string[] f;			try			{				f = Directory.GetFiles(basedir);			}			catch(UnauthorizedAccessException)			{				Console.WriteLine("Permission denied in " + basedir);				return;			}			foreach (string file in f)			{				string match = basedir + Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(file) + ext2;				if (op == "and")				{					if (Path.GetExtension(file) == ext1 && f.Contains(match))					{						Console.WriteLine(String.Format("Found {0} and {1}",Path.GetFullPath(file),Path.GetFullPath(match)));						count++;					}				}				else if (op == "not")				{					if (Path.GetExtension(file) == ext1 && !f.Contains(match))					{						Console.WriteLine(String.Format("Found {0} without {1}", Path.GetFullPath(file), Path.GetFullPath(match)));						count++;					}				}			}			string[] d = Directory.GetDirectories(basedir);			foreach (string dir in d)			{				FindMatchingFiles(dir, ext1, ext2, ref count, op);			}		}	}}

[CeRi]

here is mine: it is a small, simple paint program. it is written in assembly and it compiles to a 197 byte .com file(runs on dos and win32 and under dos-box on 64 bit windows). you can change the color by using the letter c and then pressing any of the numbers(1-8), you can also change the unit you're drawing whit by pressing r and then the letter you want to draw whit.

 

I also created a version that you can boot into(tested on virtualbox). it compiles to a .bin file and you need to make that .bin file to a .img file by using

cmd: copy /b whatever.bin  whatever.img, then you can boot using the floppy drive :D

 

herez the codez:

.com version: http://pastebin.com/RF1TBuAj(97 lines long)

boot version: http://pastebin.com/bmTT8HJS (103 lines long)

 

EDIT:

Here's another one I created, it's like the cpu-z Instructions part, but instead of giving you short list like:

"MMX,SSE,EM64T,AES jne..", Mine gives you the whole list. it is a 64-bit program , written in c++ and assembly:

https://gist.github.com/MRCeRi/62e872efed534af7c74d

Might come in handy:D

[rufidmonki]

I call this program: "Delete everything.. EEVERYTHING!!!". I can use dirent.h, right?  :)

 

I haven't tested the remove function before, so I'm not sure if this program actually works. But it does a pretty goddamn job at listing the files at least!

It will list all the directories and files that are in the working directory (and then continue to those directories recursively). So basically, it doesn't go to the "..\" and ".\" folders, because it just goes infinitely.

 

Here is the code. 51 lines yo!

#include "dirent.h"#include <iostream>#include <string>#include <vector>std::string get_working_directory() {    static size_t workdir_size = 500;    static wchar_t* workdir = new wchar_t [ workdir_size ]; // Yes, here's a memory leak. I was aware of this when I first wrote this function.    workdir = _wgetcwd(workdir, workdir_size);    std::wstring workdir_wstr = workdir;    std::string workdir_str;    workdir_str.assign(workdir_wstr.begin(), workdir_wstr.end());    return (workdir_str);}void read_directory(std::string _Directory) {    std::vector<std::string> readlater;    dirent* ent = NULL;    DIR* dir = opendir(_Directory.c_str());    if (dir == NULL) {        std::cout << "dir = NULL" << std::endl;        return;    }    while ((ent = readdir(dir))) {        switch (ent->d_type) {        case (DT_REG): {            // remove((_Directory + std::string("\\") + ent->d_name).c_str()); // UNCOMMENT AT OWN RISK - I did not even test this part. I'm too afraid, lol.            std::cout << _Directory + "\\" << ent->d_name << std::endl;            break;        }        case (DT_DIR): {            if (ent->d_name[0] != '.') {                readlater.push_back(_Directory + "\\" + ent->d_name);                std::cout << readlater[readlater.size()-1] << std::endl;            }            break;        }        }    }    closedir (dir);    for (unsigned int i = 0; i < readlater.size(); i++) {        read_directory(readlater[i]);    }}int main(int argc, char** argv) {    std::string directory = get_working_directory();    read_directory(directory);    std::cin.get();    return (0);}

What's my prize?  B)