C
#include <stdio.h>
int main()
{
int n = 5;
int i,j;
for(i = 1; i <= n; i++)
{
for(j = 1; j <= 2 * (n - i + 1); j++)
{
if (j <= n - i + 1)
printf("%c", 64 + j);
else
printf("%c", 65 + (2 * (n - i + 1) - j));
}
printf("\n");
}
return 0;
}
C++
#include <iostream.h>
int main()
{
int n = 5;
for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= 2 * (n - i + 1); j++)
{
if (j <= n - i + 1)
cout<<(char)(64 + j);
else
cout<<(char)(65 + (2 * (n - i + 1) - j));
}
cout<<endl;
}
return 0;
}
Java
class PatternProg
{
public static void main(String args[])
{
int n = 5;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= 2 * (n - i + 1); j++)
{
if (j <= n - i + 1)
{
System.out.print((char)(64 + j));
}
else
{
System.out.print((char)(65 + (2 * (n - i + 1) - j)));
}
}
System.out.println();
}
}
}
C#
using System;
class PatternProg
{
public static void Main()
{
int n = 5;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= 2 * (n - i + 1); j++)
{
if (j <= n - i + 1)
{
Console.Write((char)(64 + j));
}
else
{
Console.Write((char)(65 + (2 * (n - i + 1) - j)));
}
}
Console.WriteLine();
}
Console.ReadKey(true);
}
}
Python
n = 5
for x in range(1, n + 1):
for y in range(1, 2 * (n - x + 1) + 1):
if y <= n - x + 1:
print(chr(64 + y), end="")
else:
print(chr(65 + (2 * (n - x + 1) - y)), end="")
print()