C
#include <stdio.h>
int main()
{
int n = 5, x = 1;
int i,j;
for(i = 1; i <= n; i++)
{
for (j = 1; j <= n * 2; j++)
{
if (j >= n - i + 1 && j <= n + i - 1)
printf("%2d", x++);
else
printf(" ");
}
printf("\n");
}
return 0;
}
C++
#include <iostream.h>
#include <iomanip.h>
int main()
{
int n = 5, x = 1;
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= n * 2; j++)
{
if (j >= n - i + 1 && j <= n + i - 1)
cout<<setw(3)<<x++;
else
cout<<setw(3)<<" "; // 2ws
}
cout<<endl;
}
return 0;
}
Java
class PatternProg
{
public static void main(String args[])
{
int n = 5;
int x = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= n * 2; j++)
{
if (j >= n - i + 1 && j <= n + i - 1)
{
System.out.printf("%3d", x++);
}
else
{
System.out.print(" "); //3ws
}
}
System.out.println();
}
}
}
C#
using System;
class PatternProg
{
public static void Main()
{
int n = 5;
int x = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= n * 2; j++)
{
if (j >= n - i + 1 && j <= n + i - 1)
{
Console.Write("{0,3:D}", x++);
}
else
{
Console.Write(" "); //3ws
}
}
Console.WriteLine();
}
Console.ReadKey(true);
}
}
Python
n = 5
d = 1
for x in range(1, n + 1):
for y in range(1, (n * 2) + 1):
if y >= n - x + 1 and y <= n + x - 1:
print("{:3d}".format(d), end="")
d += 1
else:
print(" ", end="") # 3ws
print()