I'm novice in C# and cause I request help me to implement this:
*
*
***
*
***
*****
*
***
*****
*******
*
***
*****
*******
*********
I just had this code:
class Program
{
static void Main(string[] args)
{
AnotherTriangle ob = new AnotherTriangle();
ob.CreateTriangle();
Console.ReadLine();
}
}
class AnotherTriangle
{
int n;
string result = "*";
public void CreateTriangle()
{
flag1:
Console.Write("Please enter number of triangles of your tree: ");
n = int.Parse(Console.ReadLine());
Console.WriteLine();
if (n <= 0)
{
Console.WriteLine("Wrong data type\n"); goto flag1;
}
string s = "*".PadLeft(n);
for (int i = 0; i < n; i++)
{
Console.WriteLine(s);
s = s.Substring(1) + "**";
for (int j = 0; j < n; j++)
{
Console.WriteLine(s);
}
}
}
}
At now I have only "tower", not equilateral triangle. Please help.
Console.WriteLine("Please enter the number of triangles in your tree: ");
int n = int.Parse(Console.ReadLine());
for (int i = 1; i <= n; i++)
{
for (int j = 0; j < i; j++)
{
string branch = new String('*', j);
Console.WriteLine(branch.PadLeft(n + 3) + "*" + branch);
}
}
A working example.
Related
If I wanted to modify a console app that currently prints:
1
12
123
1234
to print
1
121
12321
1234321
Which loop should i modify?
Below is the code from the original console app.
int altura; string space = ""; int cont2 = 0;
Console.Write("Dar altura: ");
altura = int.Parse(Console.ReadLine());
for (int i = 1; i <= altura; i++)
{
space = "";
for (int j = 1; j <= i; j++)
{
space = space + Convert.ToString(j);
}
Console.WriteLine(space);
}
Console.ReadLine();
Thank you in advance.
Try this
int altura; string space = "";
int cont2 = 0;
Console.Write("Dar altura: ");
altura = int.Parse(Console.ReadLine());
for (int i = 1; i <= altura; i++)
{
space = "";
for (int j = 1; j <= i; j++)
{
space = space + Convert.ToString(j);
}
for (int k = i - 1; k >= 1 ; k--)
{
space = space + Convert.ToString(k);
}
Console.WriteLine(space);
}
Console.ReadKey();
int altura; string space = ""; int cont2 = 0;
Console.Write("Dar altura: ");
altura = int.Parse(Console.ReadLine());
for (int i = 1; i <= altura; i++)
{
var stack = new System.Collections.Generic.Stack<int>();
space = "";
for (int j = 1; j <= i; j++)
{
space = space + Convert.ToString(j);
stack.Push(j);
}
stack.Pop();
while (stack.Count > 0)
{
space = space + Convert.ToString(stack.Pop())
}
Console.WriteLine(space);
}
Console.ReadLine();
Or for fun:
int altura;
Console.Write("Dar altura: ");
altura = int.Parse(Console.ReadLine());
var lines = Enumerable.Range(1, altura).Select(i =>
{
var line = Enumerable.Range(1, i).ToArray();
var reverse = line.Reverse().Skip(1).ToArray();
return String.Join("", line.Concat(reverse).Select(c => c.ToString()).ToArray())
});
foreach(string line in lines)
{
Console.Writeline(line);
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
namespace Rextester
{
public class Program
{
public static void Main(string[] args)
{
int rows=5;
for(int i=1;i<=rows;i++){
for(int j=1;j<=i;j++){
Console.Write(" "+j);
}
for(int k=i-1;k>=1;k--){
Console.Write(" "+k);
}
Console.WriteLine();
}
}
}
}
class Triangle
{
static void Main(string[] args)
{
int i,j,k,odd=1,size,s=0;
Console.Write("Enter the Size:");
size = Convert.ToInt32(Console.ReadLine());
int nofSpaces=size-1;
for (i = 1; i <= size; i++)
{
for (k = 1; k <= nofSpaces; k++)
{
Console.Write(" ");
}
for (j = 1; j <= odd; j++)
{
if (i >= j)
{
s = s + 1;
}
else
{
s = s - 1;
}
Console.Write(s);
}
Console.Write("\n");
odd = odd + 2;
nofSpaces = nofSpaces - 1;
}
Console.ReadKey();
}
}
This is the code and it gives the following result:
1
232
34543
4567654
56789875
But I need the result like this:
1
121
12321
1234321
---------
Any help would be greatly appreciated. Thank you.
Add
s = 0;
at the right line in your code.
class Triangle
{
static void Main(string[] args)
{
int i,j,k,odd=1,size;
Console.Write("Enter the Size:");
size = Convert.ToInt32(Console.ReadLine());
int nofSpaces=size-1;
int s = 0;
for (i = 1; i <= size; i++)
{
int g = 0;
for (k = 1; k <= nofSpaces; k++)
{
Console.Write(" ");
}
for (j = 1; j <= odd; j++)
{
if (i >= j)
{
Console.Write(j);
g = j;
}
else
{
//for (int n = j-1; n >= i; n--)
//{
// Console.Write(n - 1);
//}
Console.Write(--g);
}
}
Console.Write("\n");
odd = odd + 2;
nofSpaces = nofSpaces - 1;
}
Console.ReadKey();
}
}
}
Thank you All!... The above code is working....
You should try this...
This is a simple example with for loops
class Triangle
{
static void Main(string[] args)
{
int size;
Console.Write("Enter the Size:");
size = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < size; i++)
{
for (int j = size ; j > i; j--)
{
Console.Write(" ");
}
for (int x = 1; x <= i; x++)
{
Console.Write(x);
}
for (int j = i-1; j > 0; j--)
{
Console.Write(j);
}
Console.WriteLine();
}
Console.ReadKey();
}
}
Please write as below
static void Main(string[] args)
{
int i, j, k, odd = 1, size, s = 0;
Console.Write("Enter the Size:");
size = Convert.ToInt32(Console.ReadLine());
int nofSpaces = size - 1;
for (i = 1; i <= size; i++)
{
for (k = 1; k <= nofSpaces; k++)
{
Console.Write(" ");
}
s = 0;
for (j = 1; j <= odd; j++)
{
if (i >= j)
{
s = s + 1;
}
else
{
s = s - 1;
}
Console.Write(s);
}
Console.Write("\n");
odd = odd + 2;
nofSpaces = nofSpaces - 1;
}
Console.ReadKey();
}
So I'm trying to do a pyramid in C# but I can't get it to print properly.
I'm doing this for my school's C# class, can't really figure out how to get the spaces in the pyramid properly. I feel like I'm really doing something wrong here.
Instead of a triangle I'm getting something like this:
*
**
***
****
*****
******
*******
********
Here is my code:
using System;
namespace Pyramidi
{
class Ohjelma
{
static void Main()
{
int korkeusMax = 0;
int valit = 0;
do
{
Console.Write("Anna korkeus: ");
korkeusMax = Convert.ToInt32(Console.ReadLine());
if (korkeusMax > 0) {
break;
}
else {
continue;
}
}
while(true);
for (int korkeus = 1; korkeus <= korkeusMax; korkeus++)
{
valit = (korkeusMax - korkeus) / 2;
for (int i = 0; i < valit; i++)
{
Console.Write(" ");
}
for (int leveys = 1; leveys <= korkeus; leveys++)
{
Console.Write("*");
}
Console.WriteLine();
}
Console.ReadLine();
}
}
}
Try this:
for (int korkeus = 0; korkeus < korkeusMax; korkeus++)
{
for (int i = 0; i < (korkeusMax - korkeus - 1); i++)
{
Console.Write(" ");
}
for (int i = 0; i < (korkeus * 2 + 1); i++)
{
Console.Write("*");
}
Console.WriteLine();
}
Alternatively, instead of loops, you can use new String('*', num). Try this:
for (int korkeus = 0; korkeus < korkeusMax; korkeus++)
{
Console.Write(new String(' ', korkeusMax - korkeus - 1));
Console.Write(new String('*', korkeus * 2 + 1));
Console.WriteLine();
}
You are doing the first half right, but what you want to do for the second half is another for loop that does the opposite.
So you probably want to copy your for loop and change the header from
for (int korkeus = 1; korkeus <= korkeusMax; korkeus++)
to
for (int korkeus = kokeusMax; korkeus > 1; korkeus--)
or something along those lines
So I'm attempting to print a multiplication table in C# however I can't quite figure out how to get what I need.
So far my program outputs the following:
1 2 3
2 4 6
3 6 9
However, I need it to output this:
0 1 2 3
1 1 2 3
2 2 4 6
3 3 6 9
I've tried a lot of different ways to get the second output however I can't quite figure it out. I'm not necessarily asking for an answer but if someone could point me in the right direction it would be much appreciated.
This is the code I have as of now:
static void Main(string[] args)
{
for (int i = 1; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
Console.Write(i * j + "\t");
}
Console.Write("\n");
}
Console.ReadLine();
}
for (int i = 0; i <= 3; i++)
{
Console.Write(i + "\t");
for (int j = 1; j <= 3; j++)
{
if (i>0) Console.Write(i * j + "\t");
else Console.Write(j + "\t");
}
Console.Write("\n");
}
int tbl= int.Parse(Console.ReadLine());
int j = int.Parse(Console.ReadLine());
for (int i=1; i<=10; i++)
{
for (int j=1;j<=10; j++)
{
Console.WriteLine("{0}*{1}={2}", i, j, (i * j));`enter code here`
}
}
Console.ReadLine();
You should skip both 0's.
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
Console.Write((i == 0? j : (j == 0? i : i*j)) + "\t");
}
Console.Write("\n");
}
You could try one of this three solutions.
Solution 1 (without if else statement):
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
Console.Write("{0}\t", i);
for (int j = 1; j <= 3; j++)
{
Console.Write("{0}\t", i * j);
}
Console.WriteLine();
}
Console.ReadLine();
}
Solution 2 (With if else statement):
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
if (i == 0)
{
Console.Write("{0}\t", i);
}
else
{
Console.Write("{0}\t", i * j);
}
}
Console.WriteLine();
}
Console.ReadLine();
}
Solution 3 (With short-hand if else statement):
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
Console.Write("{0}\t", (i == 0) ? i : i * j);
}
Console.WriteLine();
}
Console.ReadLine();
}
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
if (i == 0)
{
Console.Write(j);
}
else
{
if(j == 0)
{
Console.Write(i);
}
else
{
Console.Write(i * j);
}
}
}
Console.Write("\n");
}
Console.WriteLine("Enter A Number");
int j = Convert.ToInt32(Console.ReadLine());
for (int i = 0 ; i <= 10; i++) {
Console.WriteLine("{1} X {0} = {2}",i,j,i*j);
Console.ReadLine();
}
public class Program
{
//int num;
public static void Main(string[] args)
{
int num,num1;
Console.WriteLine("enter a any number num");
num = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("enter any second number num1");
num1 = Convert.ToInt32(Console.ReadLine());
for(int i = num;i <= num1; i++)
{
for (int j = 1; j <= 10; j++)
{
Console.Write(i *j+ "\t");
}
}
Console.Write("\n");
}
}
using System;
/*
* Write a console-based application that displays a multiplication table of the product of
* every integer from 1 through 10 multiplied by every integer from 1 through 10. Save the
* file as DisplayMultiplicationTable.cs.
*/
namespace MultiplicationTable
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("\t\t\t\t\t\t\t\t\tMultiplication Table");
Console.WriteLine("------------------------------------------------------------------------------------------------------------------------------------------------------------");
const int END = 11;
for(int x = 1; x < END; x++)
{
for(int y = 1; y < END; y++)
{
int value = x * y;
Console.Write("{0} * {1} = {2}\t", y, x, value);
}
Console.WriteLine();
}
Console.ReadLine();
}
}
}
Output
Output of Code
I am attempting to complete the above code in a GUI. So far I have come up with the following code; but the output is not like the above output.
My Code for the GUI is as follows:
using System;
using System.Windows.Forms;
namespace DisplayMultiplicationTableGUI
{
public partial class Form1:Form
{
public Form1()
{
InitializeComponent();
}
private void ShowTableButton_Click(object sender, EventArgs e)
{
int a;
int b;
const int STOP = 11;
for(a = 1; a < STOP; a++)
{
for(b = 1; b < STOP; b++)
{
int value = a * b;
multiplicationTableLabel.Text += String.Format("{0} * {1} = {2} ", b, a, value);
}
multiplicationTableLabel.Text += "\n";
}
}
}
}
Hello everyone
I try to solve asterisk tree problem
and found my code is not work correctly and can be improved.
This is output that expected
input : 5
*
* * *
* * * * *
* * *
*
input : 4
* * * *
* *
* * * *
and this is my code
static void Main(string[] args)
{
Console.Write("input:");
char input = Console.ReadKey().KeyChar;
if (char.IsDigit(input))
{
int couter = (int)char.GetNumericValue(input);
Console.WriteLine();
if (couter % 2 != 0)
{
for (int i = 1; i <= couter; i++)
{
for (int j = 3; j > i; j--)
{
Console.Write(" ");
}
for (int k = 1; k <= i; k++)
{
Console.Write(" *");
}
Console.WriteLine();
}
for (int i = couter - 1; i >= 3; i--)
{
for (int j = 1; j <= i; j++)
{
if (j <= couter - i)
{
Console.Write(" ");
}
else
{
Console.Write("* ");
}
}
Console.WriteLine();
}
}
else
{
for (int i = couter; i > 3; i--)
{
for (int j = 1; j <= i; j++)
{
if (couter - i >= j)
{
Console.Write(" ");
}
else
{
Console.Write("* ");
}
}
Console.WriteLine();
}
for (int i = couter - 1; i <= couter; i++)
{
for (int j = 0; j < i; j++)
{
Console.Write("* ");
}
Console.WriteLine();
}
}
}
}
Please could you help me to solve this problem.
Lately, I think I'm poor at algorithms and a little complex problem. Is anybody know useful link or how I can improve this skill, please let me know.
Thanks,
Check this page for input 5 (diamond) : http://www.dreamincode.net/forums/topic/126715-diamond-asterisk/
I've translated it to C# - now it displays diamonds with size that you set in variable 'rows':
int rows = 5;
StringBuilder sb = new StringBuilder();
// top part
for (int i = 1; i <= rows; i++)
{
for (int j = 1; j <= rows - i; j++)
sb.Append(' ');
for (int k = 1; k <= 2 * i - 1; k++)
sb.Append('*');
sb.AppendLine();
}
//bottom part
for (int n = rows - 1; n > 0; n--)
{
for (int l = 1; l <= rows - n; l++)
sb.Append(' ');
for (int m = 1; m <= 2 * n - 1; m++)
sb.Append('*');
sb.AppendLine();
}
Console.Write(sb.ToString());
I was initially reluctant to post it because it definitely smells like homework...
Anyway, here's a piece of working code:
static void Main(string[] args)
{
Console.Write("input:");
char input = Console.ReadKey().KeyChar;
if (char.IsDigit(input))
{
int couter = (int)char.GetNumericValue(input);
Console.WriteLine();
if (couter % 2 != 0)
PrintDiamond(couter);
else
PrintHourGlass(couter);
}
Console.ReadLine();
}
private static void PrintDiamond(int couter)
{
bool moreAsterisks = true;
for (int row = 0; row < couter; row++)
{
int nAsterisks = moreAsterisks ? (2 * row) + 1 : 2 * (couter - row - 1) + 1;
int nSpaces = (couter - nAsterisks) / 2;
if (row == (couter - 1) / 2)
moreAsterisks = false;
for (int i = 0; i < nSpaces; i++)
Console.Write(" ");
for (int i = 0; i < nAsterisks; i++)
Console.Write("*");
for (int i = 0; i < nSpaces; i++)
Console.Write(" ");
Console.WriteLine();
}
}
private static void PrintHourGlass(int couter)
{
bool moreAsterisks = false;
for (int row = 0; row < couter - 1; row++)
{
int nAsterisks = moreAsterisks ? couter - 2 * (couter - row - 2) : couter - (2 * row);
int nSpaces = (couter - nAsterisks) / 2;
if (row == (couter - 2) / 2)
moreAsterisks = true;
for (int i = 0; i < nSpaces; i++)
Console.Write(" ");
for (int i = 0; i < nAsterisks; i++)
Console.Write("*");
for (int i = 0; i < nSpaces; i++)
Console.Write(" ");
Console.WriteLine();
}
}
P.S.:
it works with any number, not just 4-5...
Here's a minified LINQ solution for your problem:
class Program
{
static void Main(string[] args)
{
Console.Write("input: ");
string line = Console.ReadLine();
int n;
if (!int.TryParse(line, out n))
{
Console.WriteLine("Enter a valid integer number.");
return;
}
for (int i = 0; i < n; i++)
{
int l = Math.Abs(n - i * 2 - 1) + 1;
if (n % 2 != 0) l = n - l + 1;
Console.Write(Enumerable.Repeat(" ", n - l).DefaultIfEmpty("").Aggregate((a, b) => a + b));
Console.WriteLine(Enumerable.Repeat("* ", l).DefaultIfEmpty("").Aggregate((a, b) => a + b));
}
}
}
It's pretty simple; inside the loop, first line calculates length of the i-th diamond row if input is even, second one corrects the calculation for odd input. The remaining two lines print i-th row using some LINQ tricks. If you don't like showing off with LINQ, you can replace thoose lines with regular for loops (which is probably going to be faster). Then the code would look like:
class Program
{
static void Main(string[] args)
{
Console.Write("input: ");
string line = Console.ReadLine();
int n;
if (!int.TryParse(line, out n))
{
Console.WriteLine("Enter a valid integer number.");
return;
}
for (int i = 0; i < n; i++)
{
int l = Math.Abs(n - i * 2 - 1) + 1;
if (n % 2 != 0) l = n - l + 1;
//Console.Write(Enumerable.Repeat(" ", n - l).DefaultIfEmpty("").Aggregate((a, b) => a + b));
//Console.WriteLine(Enumerable.Repeat("* ", l).DefaultIfEmpty("").Aggregate((a, b) => a + b));
for (int c = 0; c < n - l; c++) Console.Write(" ");
for (int c = 0; c < l; c++) Console.Write("* ");
Console.WriteLine();
}
}
}