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