I'm studying coding and I'm on project 8 of project euler.
I was able to show the product "5832" for four adjacent digits when I'm using my code however when I use it on 13 digits, it doesn't work. My code is:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace practice
{
class Program
{
static void Main(string[] args)
{
const string number = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
string input1, input2, input3, input4, input5;
string input6, input7, input8, input9, input10;
string input11, input12, input13;
int convert1, convert2, convert3, convert4, convert5;
int convert6, convert7, convert8, convert9, convert10;
int convert11, convert12, convert13;
convert1 = convert2 = convert3 = convert4 = convert5 = convert6 = convert7 = convert8 = 0;
convert9 = convert10 = convert11 = convert12 = convert13 = 0;
int counter;
int product = 0;
int largest = 0;
int length = number.Length - 13;
for (counter = 1; counter <= length; counter++)
{
input1 = number.Substring(counter, 1);
input2 = number.Substring(counter+1, 1);
input3 = number.Substring(counter+2, 1);
input4 = number.Substring(counter+3, 1);
input5 = number.Substring(counter+4, 1);
input6 = number.Substring(counter+5, 1);
input7 = number.Substring(counter+6, 1);
input8 = number.Substring(counter+7, 1);
input9 = number.Substring(counter+8, 1);
input10 = number.Substring(counter+9, 1);
input11 = number.Substring(counter+10, 1);
input12 = number.Substring(counter+11, 1);
input13 = number.Substring(counter+12, 1);
convert1 = Convert.ToInt32(input1);
convert2 = Convert.ToInt32(input2);
convert3 = Convert.ToInt32(input3);
convert4 = Convert.ToInt32(input4);
convert5 = Convert.ToInt32(input5);
convert6 = Convert.ToInt32(input6);
convert7 = Convert.ToInt32(input7);
convert8 = Convert.ToInt32(input8);
convert9 = Convert.ToInt32(input9);
convert10 = Convert.ToInt32(input10);
convert11 = Convert.ToInt32(input11);
convert12 = Convert.ToInt32(input12);
convert13 = Convert.ToInt32(input13);
product = convert1 * convert2 * convert3 * convert4 * convert5 * convert6
* convert7 * convert8 * convert9 * convert10 * convert11
* convert12 * convert13;
if (largest < product) { largest = product; }
}
Console.WriteLine("The largest number is {0}", largest);
Console.ReadKey();
}
}
}
It doesn't show the correct answer which I find daunting. The next steps
I did is:
1. Check the last 13 digits of my variables to check if it loops and multiplies correctly "0420420752963450".
2. Check if it works with the first four numbers and first five numbers which are surprisingly correct.
3. Studied how others have done it.
4. Links used:
Homework in Java. Find the largest product of five consecutive digits
http://www.mathblog.dk/solution-to-problem-8-of-project-euler/
I seem to not get it. Please guide me on seeing my mistake. Thank you.
Your product variable is int and you parse your consecutive numbers to int. Max value for integer is 2,147,483,647. So when you multiply 13 numbers it's quite possible you will exceed the limit and the value will overflow giving incorrect result. Perhaps, consider using BigInteger instead.
What about something like this:
[Test]
public void Test()
{
const string number = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
int index = 0;
int largest = 0;
var largestString = "";
const int length = 13;
while (index + length <= number.Length)
{
var substring = number.Substring(index, length);
var product = ProductOfEachNumber(substring);
if (product > largest)
{
largestString = substring;
largest = product;
}
index++;
}
Console.WriteLine("The largest number is {0}", largest);
Console.WriteLine("The largest number string is {0}", largestString);
}
[Test]
public void TestSubstring()
{
var res = ProductOfEachNumber("9989");
res.Should().Be(5832);
}
private static int ProductOfEachNumber(string substring)
{
return substring.Aggregate(1, (current, c) => current*Int32.Parse(c.ToString()));
}
Gives output:
The largest number is 2091059712
The largest number string is 9781797784617
Try this one, let me know. You have to modify it.
static void Main(string[] args)
{
Stopwatch sw = Stopwatch.StartNew();
int x = Largest();
Console.WriteLine(x);
Console.WriteLine("Time used (float): {0} ms", sw.Elapsed.TotalMilliseconds);
Console.WriteLine("Time used (rounded): {0} ms", sw.ElapsedMilliseconds);
Console.ReadKey();
}
public static int Largest()
{
string p = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
int largest = 0;
int numm = 0;
for (int i = 0; i < p.Length - 4; i++)
{
numm = int.Parse(p.Substring(i, 1)) *
int.Parse(p.Substring(i + 1, 1)) *
int.Parse(p.Substring(i + 2, 1)) *
int.Parse(p.Substring(i + 3, 1)) *
int.Parse(p.Substring(i + 4, 1));
if (numm > largest)
{
largest = numm;
}
}
return largest;
}
Related
I got stuck in creating an algorithm that creates sets of 4 characters from two strings, two characters from one string and two from other string.
Example:
String one: FIRSTNAME
String two: LASTNAME
and the result that I expect is to get 10 sets of 4 characters like this: FILA, RSST, TNNA, AMME, EFLA and so on until we get 10 combinations like this.
this is the code that I made
using System;
public class Program
{
public static void Main()
{
Console.WriteLine("Name");
string name = Console.ReadLine();
Console.WriteLine("Lastname");
string lastname = Console.ReadLine();
int i;
var nchars = name.ToCharArray();
var pchars = lastname.ToCharArray();
for (i = 0; i <= 10; i++){
int ctr0;
int ctr;
int ctr2;
for (ctr = 0, ctr2 = 1, ctr0 = 1;
ctr < 10;
ctr0++, ctr = ctr + 2, ctr2 = ctr2 + 2) {
Console.WriteLine("{0}{1}{2}{3}{4}",
ctr0,
nchars[ctr],
nchars[ctr2],
pchars[ctr],
pchars[ctr2]);
}
}
}
}
and the output is good so far because I get
1FILA
2RSST
3TNNA
4AMME
but it stops when the string ends and instead of getting 10 combinations I get only 4.. what can I do?
Am I doing it wrong?
Or adding some Enumerable love.
public class Program
{
public static void Main(string[] args)
{
Console.WriteLine("Name");
string name = Console.ReadLine();
Console.WriteLine("Lastname");
string lastname = Console.ReadLine();
// set the number of required sets and size
const int sets = 10;
const int size = 2;
// make both inputs long enough
var input1 = string.Concat(Enumerable.Repeat(name, (Math.Abs((sets * size) / name.Length) + 1)));
var input2 = string.Concat(Enumerable.Repeat(lastname, (Math.Abs((sets * size) / lastname.Length) + 1)));
// enumerate the index so we can substring the inputs.
var results = Enumerable.Range(0, sets)
.Select(x => $"{x + 1}{input1.Substring(x * size, size)}{input2.Substring(x * size, size)}");
// optional write to console
foreach(var result in results)
{
Console.WriteLine(result);
}
}
}
Trying to rectify your alogrithm, I think this is what you should try:
public class Program
{
public static void Main(string[] args)
{
Console.WriteLine("Name");
string name = "FIRSTNAME";
Console.WriteLine("Lastname");
string lastname = "LASTNAME";
int i;
var nchars = name.ToCharArray();
var pchars = lastname.ToCharArray();
var ncharsCount = nchars.Length;
var pcharsCount = pchars.Length;
//for (i=0;i<=10;i++){
int ctr0;
int ctr;
int ctr2;
for (ctr = 0, ctr2 = 1, ctr0=1; ctr0 < 10 ;ctr0++, ctr++,ctr2++){
Console.WriteLine("{0}{1}{2}{3}{4}", ctr0,nchars[ctr%ncharsCount],nchars[ctr2%ncharsCount],pchars[ctr%pcharsCount],pchars[ctr2%pcharsCount]);
}
//}
}
}
Let's split the initial problem into several easier ones:
CircularSubstring, e.g. for value = "12345", index = 4, length = 3 we get "512"
MyGemerator which generate "FILA", "RSST" etc.
Final output in the required format
Code:
private static String CircularSubstring(string value, int index, int length) {
StringBuilder sb = new StringBuilder(length);
// + + value.Length) % value.Length -
// .Net can return negative remainder when we want it to be in [0..value.Length)
for (int i = 0; i < length; ++i)
sb.Append(value[((index + value.Length + i) % value.Length + value.Length) % value.Length]);
return sb.ToString();
}
private static IEnumerable<string> MyGenerator(string left, string right, int size) {
for (int i = 0; ; i += size)
yield return CircularSubstring(left, i, size) + CircularSubstring(right, i, size);
}
Then we are ready to generate a report in required format:
string one = "FIRSTNAME";
string two = "LASTNAME";
int size = 2; // chunks of size 2 from each (one, two) strings
int take = 10; // 10 chunks to generate
string report = string.Join(Environment.NewLine, MyGenerator(one, two, size)
.Take(take)
.Select((item, index) => $"{index + 1}{item}")
);
Console.Write(report);
Outcome:
1FILA
2RSST
3TNNA
4AMME
5EFLA
6IRST
7STNA
8NAME
9MELA
10FIST
More demo:
Console.Write(string.Join(Environment.NewLine, MyGenerator("Stack", "Overflow", 3)
.Take(12)
.Select((item, index) => $"{index + 1,2}. {item}")
));
Outcome:
1. StaOve
2. ckSrfl
3. tacowO
4. kStver
5. ackflo
6. StawOv
7. ckSerf
8. taclow
9. kStOve
10. ackrfl
11. StaowO
12. ckSver
So my homework is I have to take two numbers from the user then I have to write out the odd numbers in that interval.But the code under doesn't work. It writes out "TrueFalseTrueFalse".
int szam;
int szam2=0;
int szam3=0;
int szam4=0;
Console.Write("Please give a number:");
szam = Convert.ToInt32(Console.ReadLine());
Console.Write("Please give another number:");
szam2 = Convert.ToInt32(Console.ReadLine());
if (szam>szam2)
{
for (szam3=szam, szam4 = szam2; szam4 < szam3; szam4++)
{
Console.Write(szam2 % 2==1);
}
}
else
{
for (szam3 = szam, szam4 = szam2; szam3 < szam4; szam3++)
{
Console.Write(szam3 % 2 ==1);
}
}
So if the two numbers would be 0 and 10, the program has to write out 1, 3, 5, 7, and 9
I would be careful when naming your variables yes its a small piece of code but it gets confusing to people trying to read it.
Based on the requirement, I would guess you want all the odd numbers given a certain range.
const string comma = ",";
static void Main(string[] args)
{
int start = getNumber();
int end = getNumber();
if(start > end)
{
int placeHolder = end;
end = start;
start = placeHolder;
}
string delimiter = string.Empty;
for(int i = start; i < end; i++)
{
if(i % 2 == 1)
{
Console.Write(string.Concat(delimiter,i.ToString()));
delimiter = comma;
}
}
Console.ReadLine();//otherwise you wont see the result
}
static int getNumber()
{
Console.Write("Please enter a number:");
string placeHolder = Console.ReadLine();
int toReturn = -1;
if (int.TryParse(placeHolder, out toReturn))
return toReturn;
return getNumber();
}
as Juharr mentioned in the comments, you need to check the result to print the actual number.
Width Linq you can write:
int szam = 20;
int szam2= 30;
var odds = Enumerable.Range(szam2 > szam ? szam : szam2, Math.Abs(szam-szam2))
.Where(x=>x % 2 != 0);
outputs:
21
23
25
27
29
// so we create a range from low to high (Enumerable.Range(..)
// take only the odd values (x % 2 != 0)
simply wrap it in string.Join to make a single string:
string text = String.Join(",",Enumerable.Range(szam2 > szam ? szam :
szam2,Math.Abs(szam-szam2))
.Where(x=>x % 2 != 0));
I have a program that is to calculate taxes for payroll. I need a for loop to write the last name, first name, dept, rate, hours, earnings, fica, fedtax, statetax and netpay. I'm not thrown any errors when I run the program and can't seem to find why my output only displays the last name. There are two .txt files, one is blank for output and the other is listed below.
This is the data content of my .txt file:
Adams Paul 3 9.75 40.00
Allen Cindy 2 11.45 48.00
Allen Sarah 4 10.30 40.00
Baker John 1 22.00 43.25
Baker Toni 1 12.65 40.00
Baldwin Cindy 2 7.90 25.50
Carson Robert 1 8.35 52.50
Freeman Sally 4 15.25 40.00
Garfield James 3 22.00 40.00
Grimes Kerri 3 16.50 35.00
Harris Joan 2 18.65 51.00
Harris John 2 9.00 47.50
Lawson LeAnn 4 17.85 40.00
Mason Debbie 4 22.00 41.50
Masters Kenneth 3 16.10 40.25
Patterson Roseanne 2 13.70 38.00
Peterson Paul 2 22.00 44.00
Randall Michael 3 8.00 41.00
Rogers Sherry 1 16.50 30.00
Shepard Steven 3 10.90 45.50
This is my code:
using System;
using System.IO;
using System.Text.RegularExpressions;
using LibUtil;
classPayRoll
{
const double FICA_RATE = 0.07;
const double FED_TAX_RATE = 0.22;
const double STATE_TAX_RATE = 0.05;
const string INPUT_FILE_NAME = "PayrollDat.Txt";
const string OUTPUT_FILE_NAME = "PayrollReport.Txt";
static uint numOfEmployees;
static string[] lastNameArray = new string[51], firstNameArray = new string[51];
static uint[] deptArray = new uint[51];
static double[] rateArray = new double[51], hoursArray = new double[51];
static double[] earningsArray = new double[51], ficaArray = new double[51];
static double[] fedTaxArray = new double[51], stateTaxArray = new double[51];
static double[] netPayArray = new double[51];
static StreamReader fileIn;
static StreamWriter fileOut;
static void Main()
{
OpenFiles();
InputData();
CalcDetailPayroll();
PrintReport();
CloseFiles();
}
static void OpenFiles()
{
if (File.Exists(INPUT_FILE_NAME))
{
fileIn = File.OpenText(INPUT_FILE_NAME);
Console.WriteLine("{0} was opened", INPUT_FILE_NAME);
}
else
{
Console.WriteLine("Error: {0} does not exist\n", INPUT_FILE_NAME);
ConsoleApp.Exit();
}
fileOut = File.CreateText(OUTPUT_FILE_NAME);
if (File.Exists(OUTPUT_FILE_NAME))
Console.WriteLine("{0} was created\n", OUTPUT_FILE_NAME);
else
{
Console.WriteLine("Error: {0} could not be created\n", OUTPUT_FILE_NAME);
ConsoleApp.Exit();
}
}
static void ParseLineIn(string lineIn, uint i)
{
string[] words = new string[5];
lineIn = lineIn.Trim();
while (Regex.IsMatch(lineIn, "[ ]{2}"))
lineIn = lineIn.Replace(" ", " ");
words = lineIn.Split(' ');
lastNameArray[i] = words[0];
i = 0;
while (i <= numOfEmployees)
{
lastNameArray[i] = words[0];
firstNameArray[i] = words[1];
deptArray[i] = uint.Parse(words[2]);
rateArray[i] = double.Parse(words[3]);
hoursArray[i] = double.Parse(words[4]);
i++;
}
//Add code to read in data into remaining arrays
}
static void InputData()
{
uint i;
string lineIn;
i = 0;
while ((lineIn = fileIn.ReadLine()) != null)
{
i++;
ParseLineIn(lineIn, i);
}
numOfEmployees = i;
}
static void CalcDetailPayroll()
{
uint i;
double basePay, ovtPay;
for (i = 1; i <= numOfEmployees; i++)
{
if (hoursArray[i] <= 40.0)
{
basePay = Math.Round(hoursArray[i] * rateArray[i]); //Calculate base pay
ovtPay = 0.00;
}
else
{
basePay = Math.Round(40 * rateArray[i]); //Calculate base pay
ovtPay = Math.Round(rateArray[i] * (hoursArray[i] - 40.0) * 1.5); //Calculate overtime pay
}
//Calculate earnings, fica, fedTax, stateTax, and netPay
earningsArray[i] = basePay + ovtPay;
ficaArray[i] = earningsArray[i] * FICA_RATE;
fedTaxArray[i] = earningsArray[i] * fedTaxArray[i];
stateTaxArray[i] = earningsArray[i] * STATE_TAX_RATE;
netPayArray[i] = earningsArray[i] - (ficaArray[i] + fedTaxArray[i] + stateTaxArray[i]);
}
}
static double Total(double[] doubleArray)
{
uint i;
double total = 0.0;
for (i = 1; i <= numOfEmployees; i++) ;
total += earningsArray[i];
return total;
}
static double Mean(double[] doubleArray)
{
uint i;
double sum = 0.0;
for (i = 1; i <= numOfEmployees; i++)
sum += doubleArray[i];
return sum / numOfEmployees;
}
static double Max(double[] doubleArray)
{
uint i;
double max;
max = doubleArray[1];
for (i = 2; i <= numOfEmployees; i++)
if (doubleArray[i] > max)
max = doubleArray[i];
return max;
}
static double Min(double[] doubleArray)
{
uint i;
double min;
double max;
min = doubleArray[1];
for (i = 2; i <= numOfEmployees; i++)
if (doubleArray[i] < min)
max = doubleArray[i];
return min;
}
static void PrintReport()
{
uint i;
fileOut.WriteLine(" Payroll Report ");
fileOut.WriteLine();
fileOut.WriteLine(" Last Name First Name Dept Rate Hours Earnings FICA Fed Tax State Tax Net Pay ");
fileOut.WriteLine("--------------- --------------- ---- ----- ----- --------- --------- --------- --------- ---------");
for (i = 1; i <= numOfEmployees; i++)
{
fileOut.WriteLine("{0,-9} {1,9} {2,9} {3,9} {4,9} {5,9} {6,9} {7,9} {8,9} {9,9}",
lastNameArray[i], firstNameArray[i], deptArray[i], rateArray[i],hoursArray[i],earningsArray[i],
ficaArray[i],fedTaxArray[i],stateTaxArray[i],netPayArray[i]);
}
//Create for loop to display last name, firstname, dept, rate, hours, earnings, fica, fedTax, stateTax, and netPay
fileOut.WriteLine(" --------- --------- --------- --------- ---------");
fileOut.WriteLine("{0,-49}{1,9:n} {2,9:n} {3,9:n} {4,9:n} {5,9:n}",
"Total", Total(earningsArray), Total(ficaArray),
Total(fedTaxArray), Total(stateTaxArray), Total(netPayArray));
fileOut.WriteLine("{0,-49}{1,9:n} {2,9:n} {3,9:n} {4,9:n} {5,9:n}",
"Mean", Mean(earningsArray), Mean(ficaArray),
Mean(fedTaxArray), Mean(stateTaxArray), Mean(netPayArray));
fileOut.WriteLine("{0,-49}{1,9:n} {2,9:n} {3,9:n} {4,9:n} {5,9:n}",
"Maximum", Max(earningsArray), Max(ficaArray),
Max(fedTaxArray), Max(stateTaxArray), Max(netPayArray));
fileOut.WriteLine("{0,-49}{1,9:n} {2,9:n} {3,9:n} {4,9:n} {5,9:n}",
"Minimum", Min(earningsArray), Min(ficaArray),
Min(fedTaxArray), Min(stateTaxArray), Min(netPayArray));
}
static void CloseFiles()
{
fileIn.Close(); fileOut.Close();
}
}
You should change the ParseLineIn method to use the index passed from the caller. Actually you are setting always the same index when you set the i to zero
static void ParseLineIn(string lineIn, uint i)
{
string[] words = new string[5];
lineIn = lineIn.Trim();
while (Regex.IsMatch(lineIn, "[ ]{2}"))
lineIn = lineIn.Replace(" ", " ");
words = lineIn.Split(' ');
lastNameArray[i] = words[0];
// i = 0;
// No loop needed, you are reading one line of data and setting
// the appropriate index in the arrays
// while (i <= numOfEmployees)
//{
lastNameArray[i] = words[0];
firstNameArray[i] = words[1];
deptArray[i] = uint.Parse(words[2]);
rateArray[i] = double.Parse(words[3]);
hoursArray[i] = double.Parse(words[4]);
// i++;
//}
}
Also notice that your Total method has an error in this line
for (i = 1; i <= numOfEmployees; i++) ;
remove the semicolon at the end of the for loop to allow the execution of the line the makes the sum.
Said all this, I really suggest you to discard this array approach and build a proper class that represent your data and collect the information in a List of such data. Actually your code allows only files with 50 lines and please remember that array in NET start at index zero.
I'm currently creating a simple single layer perceptron algorithm. It should take in a .txt file and the algorithm runs over it. At the moment, I have the algorithm and just hard coded sample data values to test if it works (which it does), but I need it to feed off existing data values from a file. I have tried to make it work, but due to my inexperience in coding, I haven't succeeded. It would be awesome if someone could help me get this code working with external data as I've been pulling my hair out. The data is formatted like below (obviously without the bullet numbers).
0.651769
0.651604
0.651609
0.651679
0.651667
0.651699
Current Code:
using System;
using System.IO;
using System.Collections.Generic;
namespace Network
{
public class Network
{
static void Main()
{
// Load sample input patterns.
double[,] inputs = new double[,] {
{0.99, 0.99}, {0.99, 0.99}, {0.99, 0.99}, {0.99, 095}};
// Load sample output patterns.
int[] outputs = new int[] {0, 1, 0, 0 };
int patternCount = inputs.GetUpperBound(0) + 1;
// Randomise weights.
Random rdm = new Random();
// Setting randomly generated weights between -0.5 and +0.5
double[] weights = {rdm.NextDouble()-0.5, rdm.NextDouble()-0.5, rdm.NextDouble()};
// Set learning rate.
double learningRate = 1;
// Start iteration at 0
int iteration = 1;
double ErrorRate;
do
{
// Global error set to 0
ErrorRate = 0;
for (int j = 0; j < patternCount; j++)
{
// Calculate output.
int output = Output(weights, inputs[j, 0], inputs[j, 1]);
// Calculate error.
double localError = outputs[j] - output;
//if the localError is not equal to zero
if (localError != 0)
{
// Update weights.
for (int i = 0; i < 2; i++)
{
weights[i] += learningRate * localError * inputs[j, i] / 2;
}
}
// Convert error to absolute value.
ErrorRate += (localError);
}
Console.WriteLine("Iteration {0}\tError {1}", iteration, ErrorRate);
iteration++;
// If the Error is equal to zero then calculate
} while (ErrorRate != 0);
// Convergence
Console.WriteLine();
Console.WriteLine("[Input1] [Input2] [Output]");
// Input1 values
for (double input1 = 0; input1 <= 1; input1 += 1)
{
// Input2 values
for (double input2 = 0; input2 <= 1; input2 += 1)
{
// Calculate output with the inputs and the randomly generated weights
int output = Output(weights, input1, input2);
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine(" {0} {1} {2}", input1, input2, (output == 1) ? "1" : "0");
}
}
Console.Read();
}
private static int Output(double[] weights, double input1, double input2)
{
// Output = input1 * weight1 + input2 * weight2 + bias * weight3
double sum = input1 * weights[0] + input2 * weights[1] + 1 * weights[2];
// If the first condition is true, then it becomes the result. If not, the second condition becomes the result
return (sum >= 0) ? 1 : 0;
}
}
}
Are you looking for
using System.Globalization;
using System.IO;
using System.Linq
...
double[] data = File
.ReadLines(#"C:\MyFile.txt") //TODO: put actual file here
.Select(line => Double.Parse(line, CultureInfo.InvariantCulture))
.ToArray();
Sorry if this may be not explained in the best manner, but what I basically want to do is display the output of the calculation that I have created. The calculation is ancient egyptian multiplication (I was given a story to create a program where a user has the choice to calculate values using this method and note that we were not aloud to use the * and / operators) and I want to be able to show the powers that are being used, the values being calculated and the overall result. I want to return all of these outputs into a pop up box if possible but I'm not sure about how I will go about it seeing as I'm new to C# (Apprentice).
Here is an example of how I want the output
Powers: 1 + 4 + 8 = 13
Values: (1 * 238) + (4 * 238) + (8 * 238)
Result: 238 + 952 + 1904 = 3094
Here is the code I have at the minute for the ancient egyption multiplication:
Note iReturnP = Power, iReturnN = Values, iReturn = Result
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace SimpleMath
{
public class AEM : IOperation
{
public int Calculate(int i, int j)
{
int[] ints = new int[] { i, j };
Array.Sort(ints);
List<int> powers = new List<int>();
int power = 1;
int first = ints[0];
int iReturn = 0;
int iReturnP = 0;
int iReturnN = 0;
do
{
powers.Add(power);
power = new Multiply().Calculate(power, 2);
} while (power <= first);
iReturnP += first;
while (first > 0)
{
int next = powers.LastOrDefault(x => x <= first);
first -= next;
int powertotal = new Multiply().Calculate(next, i);
iReturnN += next;
iReturn += powertotal;
}
return iReturnP;
return iReturnN;
return iReturn;
}
}
}
Once you run a return statement the method will be exited. This means your 2nd and 3rd return statement will never happen. If you really want to use the return statement I suggest you return an int[] containing all 3 values. There are a bunch of other ways to go about this too. Note that this will only provide you with the totals. I'll get you on your way, but you'll have to do some work yourself.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace SimpleMath
{
public class AEM : IOperation
{
public static int[] Calculate(int i, int j)
{
int[] ints = new int[] { i, j };
Array.Sort(ints);
List<int> powers = new List<int>();
int power = 1;
int first = ints[0];
int iReturn = 0;
int iReturnP = 0;
int iReturnN = 0;
do
{
powers.Add(power);
power = new Multiply().Calculate(power, 2);
} while (power <= first);
iReturnP += first;
while (first > 0)
{
int next = powers.LastOrDefault(x => x <= first);
first -= next;
int powertotal = new Multiply().Calculate(next, i);
iReturnN += next;
iReturn += powertotal;
}
return new int[]{iReturnP, iReturnN, iReturn};
}
}
}
And then in your method where you call calculate:
int[] results = AEM.Calculate(i, j);
MessageBox.Show("Powers: " + results[0] + "\r\n Values: " + results[1] + "\r\n Results: " + results[2]);