To Print Numbers in Triangle Format in C#

sarfaraz ali

I Have Facing problem to print number in triangle format in C# this is just like a print Star (*) in triangle

|1 \

|2 6 \

|3 7 10 \

|4 8 11 13 \

|5 9 12 14 15 \

-------------------

please suggest me how can i resolve this problem

thanks

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Pankaj Kumar Choudhary11y ago
Console.WriteLine("Enter No of Rows");
            n = int.Parse(Console.ReadLine());
           int m=0,cr=0;
           for (int a = 0; a < n; a++)
           {
               Console.Write("|");
                        for (int c = 0; c <= a; c++)
               {
                   if (c == 0)
                   {    if(a<9)
                        Console.Write("{0} ", a + 1);
                   else
                       Console.Write("{0} ", a + 1);
                        m = a + 1;
                   }
                   else
                   {
                        m = n + m - c;
                       if (10<=m && m<90)
                           Console.Write("{0} ", m);
                        else if(m>=91&&m<100)
                           Console.Write("{0} ", m);
                        else
                            Console.Write("{0} ", m);
                   }
               }
               Console.Write("\\");
               cr = Console.CursorLeft + 2;
               Console.WriteLine();
           }

           Console.WriteLine(new string('-',cr));

            Console.ReadKey();

        }
Vulpes11y ago
Try this:

using System;

class Triangle
{
static void Main()
{
int n;

do
{
Console.Write("Enter number of rows : ");
int.TryParse(Console.ReadLine(), out n);
if (n < 1 || n > 20)
{
Console.WriteLine("Must be between 1 and 20.Try Again");
}
}
while( n < 1 || n > 20);

int dashes = 0;

for(int i = 1; i <= n; i++)
{
Console.Write("|");
int k = i;
int d = n - 1;

for(int j = 1; j <= i; j++)
{
int s = -2;

if (k + n - i > 99)
{
s = -4;
}
else if (k + n - i > 9)
{
s = -3;
}

Console.Write("{0," + s + "}", k);
k += d;
d--;
}

if (i == n) dashes = Console.CursorLeft + 3;
Console.WriteLine("\\");
}

Console.WriteLine(new string('-', dashes));
Console.ReadKey();
}
}