C
#include <stdio.h>
int main()
{
int n = 7; // prefer odd
int i,j;
int x = 1;
for(i = 1; i <= n; i++)
{
for(j = 1; j <= x; j++)
{
if (j == x)
{
printf("%c ", j + 64);
}
else
{
printf(" ");
}
}
printf("\n");
if (i <= n / 2)
x++;
else
x--;
}
return 0;
}
C++
#include <iostream.h>
int main()
{
int n = 7; // prefer odd
int x = 1;
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= x; j++)
{
if (j == x)
{
cout<<(char)(j+64);
}
else
{
cout<<" "; // 2ws
}
}
cout<<endl;
if (i <= n / 2)
x++;
else
x--;
}
return 0;
}
Java
class PatternProg
{
public static void main(String args[])
{
int n = 7; // prefer odd
int x = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= x; j++)
{
if (j == x)
{
System.out.print((char)(j + 64));
}
else
{
System.out.print(" "); //2ws
}
}
System.out.println();
if (i <= n / 2)
{
x++;
}
else
{
x--;
}
}
}
}
C#
using System;
class PatternProg
{
public static void Main()
{
int n = 7; // prefer odd
int x = 1;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= x; j++)
{
if (j == x)
{
Console.Write((char)(j + 64));
}
else
{
Console.Write(" "); //2ws
}
}
Console.WriteLine();
if (i <= n / 2)
{
x++;
}
else
{
x--;
}
}
Console.ReadKey(true);
}
}
Python
n = 7 # prefer odd
d = 1
for x in range(1, n + 1):
for y in range(1, d + 1):
if y == d:
print(chr(y + 64), end="")
else:
print(" ", end="") # 2ws
if x <= n // 2:
d += 1
else:
d -= 1
print()