C
#include <stdio.h>
int main()
{
int n = 7; // prefer odd
int i,j;
int x = n / 2, y = 1;
for(i = 1; i <= n; i++)
{
for (j = 1; j <= x; j++)
{
printf(" "); // 2ws
}
for (int k = 1; k <= y; k++)
{
printf("%2d", k);
}
if (i <= n / 2)
{
x--;
y += 2;
}
else
{
x++;
y -= 2;
}
printf("\n");
}
return 0;
}
C++
#include <iostream.h>
int main()
{
int n = 7; // prefer odd
int x = n / 2, y = 1;
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= x; j++)
{
cout<<" "; // 2ws
}
for (int k = 1; k <= y; k++)
{
cout<<k<<" ";
}
if (i <= n / 2)
{
x--;
y += 2;
}
else
{
x++;
y -= 2;
}
cout<<endl;
}
return 0;
}
Java
class PatternProg
{
public static void main(String args[])
{
int n = 7; // prefer odd
int x = n / 2;
int y = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= x; j++)
{
System.out.print(" "); //2ws
}
for (int k = 1; k <= y; k++)
{
System.out.print(k+" ");
}
if (i <= n / 2)
{
x--;
y += 2;
}
else
{
x++;
y -= 2;
}
System.out.println();
}
}
}
C#
using System;
class PatternProg
{
public static void Main()
{
int n = 7; // prefer odd
int x = n / 2;
int y = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= x; j++)
{
Console.Write(" "); //2ws
}
for (int k = 1; k <= y; k++)
{
Console.Write(k + " ");
}
if (i <= n / 2)
{
x--;
y += 2;
}
else
{
x++;
y -= 2;
}
Console.WriteLine();
}
Console.ReadKey(true);
}
}
Python
n = 7 # odd
d = n // 2
e = 1
for x in range(1, n + 1):
for y in range(1, d + 1):
print(" ", end="") # 2ws
for z in range(1, e + 1):
print(z, end=" ")
if x <= n // 2:
d -= 1
e += 2
else:
d += 1
e -= 2
print()