The under 100 line challenge!

[Vulpia]

I made Tic Tac Toe in C++ w/ 99 lines.

#include <iostream>#include <string>using namespace std;int main() {	//Set up the board (2D array of chars)	char board[3][3] = { { ' ', ' ', ' ' },						 { ' ', ' ', ' ' },						 { ' ', ' ', ' ' } };	//Instantiate variables	bool xTurn = true;	char currentLetter;	int selectedPosition;	//Output the board	for (int i = 0; i < 3; i++)	{		for (int j = 0; i < 3; i++)		{			cout << board[i][j];		}		cout << endl;	}	//Start the turn	//use a loop for each turn, 9 turns max	for (int i = 0; i < 9; i++){		//Determine current player		//Accept their input (the spot that they choose)		if (xTurn){			cout << "Player 1's Turn, enter 1-9 for box.";			cin >> selectedPosition;			currentLetter = 'x';		}		else{			cout << "Player 2's Turn, enter 1-9 for box.";			cin >> selectedPosition;			currentLetter = 'o';		}		if (selectedPosition == 1 && board[0][0] == ' ')			board[0][0] = currentLetter;		else if (selectedPosition == 2 && board[0][1] == ' ')			board[0][1] = currentLetter;		else if (selectedPosition == 3 && board[0][2] == ' ')			board[0][2] = currentLetter;		else if (selectedPosition == 4 && board[1][0] == ' ')			board[1][0] = currentLetter;		else if (selectedPosition == 5 && board[1][1] == ' ')			board[1][1] = currentLetter;		else if (selectedPosition == 6 && board[1][2] == ' ')			board[1][2] = currentLetter;		else if (selectedPosition == 7 && board[2][0] == ' ')			board[2][0] = currentLetter;		else if (selectedPosition == 8 && board[2][1] == ' ')			board[2][1] = currentLetter;		else if (selectedPosition == 9 && board[2][2] == ' ')			board[2][2] = currentLetter;		//Place either an x or an o in the spot		//depending on which player is active		//Output the board		for (int i = 0; i < 3; i++)		{			for (int j = 0; j < 3; j++)			{				cout << board[i][j];			}			cout << endl;		}		//Check for victory		//Conditional statements		if (board[0][0] == board[0][1] && board[0][1] == board[0][2] && board[0][2] != ' ' || board[1][0] == board[1][1] && board[1][1] == board[1][2] && board[1][2] != ' ' || board[2][0] == board[2][1] && board[2][1] == board[2][2] && board[2][2] != ' '){			cout << currentLetter << " won the game!" << endl; //up and down			return 0;		}		else if (board[0][0] == board[1][0] && board[1][0] == board[2][0] && board[2][0] != ' ' || board[0][1] == board[1][1] && board[1][1] == board[2][1] && board[2][1] != ' ' || board[0][2] == board[1][2] && board[1][2] == board[2][2] && board[2][2] != ' '){			cout << currentLetter << " won the game!" << endl; //across			return 0;		}		else if (board[0][0] == board[1][1] && board[1][1] == board[2][2] && board[2][2] != ' ' || board[0][2] == board[1][1] && board[1][1] == board[2][0] && board[2][0] != ' '){			cout << endl << currentLetter << " won the game!" << endl << endl; //diagnol			return 0;		}				//End the turn		xTurn = !xTurn;	}	cout << "It's a tie!";	return 0;}

[Nineshadow]

Here's a rather simple cypher :

#include <cstring>#include <ctype.h>int get_position_alpha(char c){    if(!isalpha©) return -1;    else    {        if(islower©) return c - 'a'+1;        if(isupper©) return c - 'A'+1;        return -1;    }}int abs(int n){    if(n >= 0) return n;    else return -1*n;}void cypher(char *str, int len, int offset){    for(int i = 0; i < len; i++)    {        if(*(str+i) == ' ') ;        else        {            if(!isalpha(*(str+i)));            else            {                char result = *(str+i) + offset;                if(islower(*(str+i)) && result <'a')                {                    result += int('z') - int('a') - 1;                }                else if(islower(*(str+i)) && result > 'z')                {                    result += int('a') - 1 - int('z');                }                else if(isupper(*(str+i)) && result < 'A')                {                    result += int('Z') - int('A') - 1;                }                else if(isupper(*(str+i)) && result > 'Z')                {                    result += int('A') - 1 - int('Z');                }                *(str+i) = result;            }        }    }}void cypher(char *str, int offset){    cypher(str, (int)strlen(str) , offset);}void decypher(char *str, int offset){    cypher(str, -1*offset);}void cypher(char *str, int *key, int key_len){    char *begin = str;    for(int i = 0; i <key_len && *(begin) != '\0'; i++)    {        cypher(begin,abs(*(key+i)), *(key+i));        begin += abs(*(key+i));    }}void cypher(char *str, char *Key){    int len = strlen(Key);    int key[len];    for(int i = 0; i < len; i++)        key[i] = get_position_alpha(*(Key+i));    cypher(str, key, len);}void decypher(char *str, char *Key){    int len = strlen(Key);    int key[len];    for(int i = 0; i < len; i++)        key[i] = -1*get_position_alpha(*(Key+i));    cypher(str, key, len);}

[VulsaviiK]

hehe, nearly any c/c++ program can be squeezed into a single line

 

I'd fail that on it being a formatting mess

[Guest]

although i like the idea. do we keep copyright?

GPL or Apache is preferred

[Nineshadow]

Text editor in C++:

#include <iostream>#include <fstream>#include <string>#include <vector>using namespace std;fstream file;vector<string> v(0);void help(){    cout<<"This is a text editor written in C++.\nYou can open it with the command : editor.exe <file_to_open>./nUsage : \np - Print everything in the file.\np <line_nr> - Print everything in the file found at line nr <line_nr>.\nw <line_nr> <string_to_write> - write <string_to_write> at line nr <line_nr>.\n";}void print(){    for(vector<string>::iterator it = v.begin(); it!=v.end(); it++)cout << *it << '\n';}void printl(int line){    if(line < v.size())        cout << v[line]<<'\n';    else cout << "Line not found.\n";}int main(int argc, char *argv[]){    switch(argc)    {    case 1 :        help();        break;    case 2:    {        file.open(argv[1], ios::in | ios::out);        string str;        while(getline(file,str))v.push_back(str);        str.clear();        file.close();        bool running = 1;        while(running)        {            getline(cin,str);            if(str[0]=='p' && str.length() < 2) print();            else if(str[0]=='p')            {                int line = (int)str[2]-48;                printl(line);            }            else if(str[0]=='w' && str.length() > 4)            {                int line = (int)str[2]-48;                string s = str.substr(4);                v[line] = s;            }            else if(str[0]=='s')            {                ofstream out(argv[1]);                for(vector<string>::iterator it = v.begin(); it!=v.end(); it++)out << *it << '\n';                out.close();            }            else if(str[0]=='q')            {                running = 0;                return 0;            }            else help();        }    }    break;    default :        return 0;    }}

You can open it with the command : editor.exe <file_to_open>.

Usage :
p - Print everything in the file.
p <line_nr> - Print everything in the file found at line nr <line_nr>.
w <line_nr> <string_to_write> - write <string_to_write> at line nr <line_nr>.

.

[rommac100]

A simple Resistance Calculator. Built using C# through the ide Monodevelop.

using System;namespace resistorCalc{	class MainClass	{		public static void Main (string[] args)		{			//bool continue1 = true;			decimal sourceVolts;			decimal outVolts;			decimal current;			decimal resistance;			string continue2;			for (bool continue1 = true; continue1 == true;){			Console.WriteLine ("Resistance Calc");				Console.WriteLine ("Enter your source Voltage.");				sourceVolts = Convert.ToDecimal(Console.ReadLine());				Console.WriteLine ("Enter your desired output voltage.");				outVolts = Convert.ToDecimal (Console.ReadLine ());				Console.WriteLine ("Enter your output's required current. In amps.");				current = Convert.ToDecimal (Console.ReadLine ());				resistance = (sourceVolts - outVolts) / (current / 1000);				Console.WriteLine ("Your required resistance is " + resistance + "ohms, or close to that.");				Console.WriteLine ("Continue?");				continue2 = Console.ReadLine();				switch (continue2) {				case "yes":					continue1 = true;					break;				case "no":					continue1 = false;					break;				default:					continue1 = true;					break;				}			}		}	}}

[Stuff_]

Am I allowed to post some buffer overflow code?

[vorticalbox]

I'm making a program to automatically set up the Windows 10 privacy settings. It's functional, but not feature complete!

Github link

http://bgr.com/2015/08/14/windows-10-spying-prevention-privacy-tools/#

 

already quite a few about

[mtbdude641]

I've made another program -- A local screen snapper that can be bound to run when a hotkey is pressed (for use with my blackwidow)

 

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

this sounds really cool, going to check it out

[xiaolongstan]

http://bgr.com/2015/08/14/windows-10-spying-prevention-privacy-tools/#

 

already quite a few about

This was right on the release of Win 10, not 2 months in.

[vorticalbox]

This was right on the release of Win 10, not 2 months in.

sorry did not read the date did you ever finish it?

[xiaolongstan]

sorry did not read the date did you ever finish it?

It's sort of done, only the stuff you can change in the registry though.

[vorticalbox]

 

A simple Resistance Calculator. Built using C# through the ide Monodevelop.

 

 

you can knock a few more lines off, hope you don't mind

using System;namespace Loop{    class Program    {        static void Main(string[] args)        {                        decimal sourceVolts;            decimal outVolts;            decimal current;            decimal resistance;            string cont;            do            {                Console.WriteLine("Resistance Calc\nEnter your source Voltage.");                                sourceVolts = Convert.ToDecimal(Console.ReadLine());                Console.WriteLine("Enter your desired output voltage.");                outVolts = Convert.ToDecimal(Console.ReadLine());                Console.WriteLine("Enter your output's required current. In amps.");                current = Convert.ToDecimal(Console.ReadLine());                resistance = (sourceVolts - outVolts) / (current / 1000);                Console.WriteLine("Your required resistance is " + resistance + "ohms, or close to that.");                Console.WriteLine("Continue? (y or n)");                cont = Console.ReadLine();                cont = cont.ToLower();                switch (cont)                {                    case "n":                                                break;                }                            } while (true);        }    }}

[dannytech357]

Hangman for PowerShell. You can goof off whenever you want now. (The school left PowerShell unlocked, bad idea...)

EDIT: Split it out, exactly 100 lines.

function hangman($word){	[system.reflection.assembly]::loadwithpartialname("System.Windows.Forms");	[System.Windows.Forms.SendKeys]::Sendwait('%{F7 2}');	$cheat=$false;	$word=$word.ToUpper();	$wordfield="";	for($length=0;$length-lt$word.Length;$length++){		if($word.Substring($length,1)-like" "){			$wordfield+=" ";		}else{			$wordfield+="_";		}	}	clear;	Write-Host ("Welcome to Hangman for PowerShell. You have 6 failures to guess the word (or possibly phrase) your friend set for you. The word/phrase is "+$word.Length+" characters long. Good luck!");	if((Read-Host "Press enter to continue...")-like"cheatmode"){		$cheat=$true;	}	clear;	Write-Host "Start!";	drawdeadman($wrongletters);	Write-Host ("Incorrect Letters: "+$wrongletters+". Current word: "+$wordfield);	$word=$word.ToUpper();	$guess="";	$wrongletters="";	while($true){		$guess=(Read-Host "Guess a letter, any letter").ToUpper();		clear;		if($wrongletters.Contains($guess)-Or$wordfield.Contains($guess)){			Write-Host "You already tried that."		}		if(-Not($word.Contains($guess))-And-Not($wrongletters.Contains($guess))){			Write-Host "Wrong.";			$wrongletters+=$guess;		}		if($word.Contains($guess)-And-Not($wrongletters.Contains($guess))-And-Not($wordfield.Contains($guess))){			Write-Host "Yes!";			for($field=0;$field-le($word.Length-1);$field++){				if($word.Substring($field,1)-like$guess){					$sub1=$wordfield.Substring(0,$field);					$sub2=$wordfield.Substring($field+1,$word.Length-($field+1));					$wordfield=($sub1+$guess+$sub2);				}			}		}		drawdeadman($wrongletters);		if($wrongletters.Length-ge6){			$wrongletters="";			$wordfield="";			Write-Host ("You failed! The word/phrase was "+$word+".");			return;		}		if($wordfield.Contains($word)-Or($guess-like$word)-Or($cheat-like$true)){			$wrongletters="";			$wordfield="";			Write-Host ("You Won! The word/phrase was "+$word);			$cheat=$false;			return;		}		Write-Host ("Incorrect Letters: "+$wrongletters+" Current word: "+$wordfield);$guess="";	}}function drawdeadman($wrongletter){	Write-Host "  ___";	if($wrongletters.Length-eq0){		Write-Host "  |";		Write-Host "  |";		Write-Host "  |";	}elseif($wrongletters.Length-eq1){		Write-Host "  |  O";		Write-Host "  |";		Write-Host "  |";	}elseif($wrongletters.Length-eq2){		Write-Host "  |  O";		Write-Host "  |  |";		Write-Host "  |";	}elseif($wrongletters.Length-eq3){		Write-Host "  |  O";		Write-Host "  | /|";		Write-Host "  |";	}elseif($wrongletters.Length-eq4){		Write-Host "  |  O";		Write-Host "  | /|\";		Write-Host "  |";	}elseif($wrongletters.Length-eq5){		Write-Host "  |  O";		Write-Host "  | /|\";		Write-Host "  | /";	}elseif($wrongletters.Length-eq6){		Write-Host "  |  O";		Write-Host "  | /|\";		Write-Host "  | / \";	}	Write-Host " _|_____";	Write-Host "/       \";}

[rommac100]

 

you can knock a few more lines off, hope you don't mind

using System;namespace Loop{    class Program    {        static void Main(string[] args)        {                        decimal sourceVolts;            decimal outVolts;            decimal current;            decimal resistance;            string cont;            do            {                Console.WriteLine("Resistance Calc\nEnter your source Voltage.");                                sourceVolts = Convert.ToDecimal(Console.ReadLine());                Console.WriteLine("Enter your desired output voltage.");                outVolts = Convert.ToDecimal(Console.ReadLine());                Console.WriteLine("Enter your output's required current. In amps.");                current = Convert.ToDecimal(Console.ReadLine());                resistance = (sourceVolts - outVolts) / (current / 1000);                Console.WriteLine("Your required resistance is " + resistance + "ohms, or close to that.");                Console.WriteLine("Continue? (y or n)");                cont = Console.ReadLine();                cont = cont.ToLower();                switch (cont)                {                    case "n":                                                break;                }                            } while (true);        }    }}

Except the switch statement won't end the program. I had to change it slightly so the while loop uses a boolean variable which the switch statement changes in order to end the program.

 

Edit: Just rewrote the code to be in c++. https://github.com/rommac100/ResistanceCalc

[Guest]

 

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

 

I'm going to enlighten you on something called for-loops. They're great and makes 99% of that code unneccessary.

http://www.lua.org/pil/4.3.4.html

 

Also, I recommend not to start programming in Lua. I'm assuming you're using it because of ComputerCraft but try to for example write a simple mod instead.

[Nater]

I'm going to enlighten you on something called for-loops. They're great and makes 99% of that code unneccessary.

http://www.lua.org/pil/4.3.4.html

 

Also, I recommend not to start programming in Lua. I'm assuming you're using it because of ComputerCraft but try to for example write a simple mod instead.

 

Even if he did a loop he'd still need to do all of the if statements, the best way would be to use an array.

[rommac100]

Not sure if you are allowed to post multiple applications you have written but I will do so. Here is a c++ calculator, that does allows as many numbers as needed. https://github.com/rommac100/calcCPlusPlus/blob/master/main.cpp Still working on it. But I think it isn't to shabby.

[WEEEEEE]

Calculates a weighted grade average, with separate categories.

I'm still pretty new, so I don't know if this is well formatted or not. I do have comments and everything is well spaced out (under 70 lines). 

 

http://pastebin.com/4fZ2mXub

[NeatSquidYT]

Writing a program for this thread as we speak

[coder-guy22296]

I'm going to enlighten you on something called for-loops. They're great and makes 99% of that code unneccessary.

http://www.lua.org/pil/4.3.4.html

 

Also, I recommend not to start programming in Lua. I'm assuming you're using it because of ComputerCraft but try to for example write a simple mod instead.

yea, when I wrote this code, I was really new to coding. Thanks for the tip, but a bit late, im much more advanced now. I am not familiar with "ComputerCraft", a friend of mine introduced me to Lua, I asked for a practice problem, this was my solution at the time.

[Gregrs]

I'm trying to get into programming, and I just had a question.

 

What language should I use? I started using C#, but I sort of bailed on it after I learned how to write things like

 

Console.WriteLine("How old are you?"

userValue = Console.ReadLine();

 

string = message "";

 

if (userValue == "17")

   message = "You're a loser";

 

Console.WriteLine(message);

Console.ReadLine();

 

 

w/e. I just want the ability to make basic applications like some of these. Where is the best place to start?

[SilicateWielder]

Okay so here is my submission. This is written in OCaml (functional language) which allows a different style of coding and the ability for short concise instructions (24 lines)

What the program does:

This is a function that sorts a list of non-empty lists increasingly according to the maximum element in the list.

e.g.

[ [7;6;5;4]; [4;3;2]; [1; 2; 3] ]   =   [ [1;2;3]; [4;3;2]; [7;6;5;4] ]

so 3 is the max element in the first list, 4 is the max element in the second, 7 is the max in the third and so on...

 

let rec matchlst l1 l2 = match l1,l2 with   | [],[] -> true   | [],_ -> false   | _,[] -> false   | hd1::tl1,hd2::tl2 -> if hd1=hd2 then matchlst tl1 tl2 else false let rec largestSingle lst max = match lst with   | [] -> max   | hd::tl -> if hd>max then largestSingle tl hd else largestSingle tl max let rec delete elem list = match list with   | [] -> []   | hd::tl -> if(matchlst hd elem) then tl else hd::(delete elem tl) let rec largest lst largeSing largeList = match lst with   | [] -> largeList   | hd::tl -> match hd with      | [] -> largest tl largeSing largeList      | hd'::tl' -> if (largestSingle hd min_int) >= largeSing then largest tl (largestSingle hd min_int) hd else largest tl largeSing largeListlet rec sortll lst = match lst with   | [] -> []   | hd::tl -> let max = (largest lst min_int []) in      (sortll (delete max lst))@([max])

http://try.ocamlpro.com/

^ an online parser for those interested.

Thanks for reading

Ooooh, I'm gonna check this out.

#!/bin/bashscripts = 10stillHasCode = falseif (stillHasCode = false) then{    echo "Oh dear, I had" + $scripts + "now I have none. :("    scripts = 0}exit 

Sadly, the rig I was using died, as did my backups. I had a neat (but redundant) little BGM and SFX management library I wrote for the Spherical Game Engine. (Which is open source, of course) It's based on javascript.

 

I also had a few scripts written in Python, BASH, and BATCH but those went out the window along with my spherical backups.

 

So for now, have a look at my experiments with Scratch (A great tool for introducing programming)

https://scratch.mit.edu/projects/75498498/#editor

[devianthead]

Don't know how useful you'd consider this, but here's an implementation of Bogosort written in Java just for fun, https://en.wikipedia.org/wiki/Bogosort. It's absolutely horrible, but it does sort the list  . Lol I'd love to write Bogobogosort, guaranteed to only complete after the inevitable heat death of the universe .

 

The program takes a list of space delimited integer arguments when called and sorts the list and comes in at 54 lines, but could definitely be shorter.

import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.Random;public class Bogosort {		public static void main(String[] args){		ArrayList<Integer> list = new ArrayList<Integer>();		for(String s : args){			list.add(Integer.parseInt(s));		}		while(!isSorted(list)){			System.out.print("Unsorted list: ");			print(list);			shuffle(list);					}				System.out.print("Sorted list:   ");		print(list);			}		public static boolean isSorted(ArrayList<Integer> list){		int previous = list.get(0);		for(int i = 1; i < list.size(); i++){			if(previous <= list.get(i)){				previous = list.get(i);			} else {				return false;			}		}		return true;				}		public static void shuffle(ArrayList<Integer> list){		Collections.sort(list, new Comparator<Integer>() {			public int compare(Integer o1, Integer o2) {				Random r = new Random();				return r.nextInt(2) - 1;			}		});	}		public static void print(ArrayList<Integer> list){		for(int i = 0; i < list.size(); i++){			if(i < list.size() - 1)				System.out.print(list.get(i) + ",");			else				System.out.print(list.get(i));		}		System.out.println();	}}

[VulsaviiK]

Hmmm, can I lift part of the sudoku solver I'm working on to dump in here. Maybe challenge myself to do it in 100 line blocks