Program for triangular patterns of alphabets

Pattern printing has always been an interesting topic in programming languages. It emphasize on the usage of inner and outer loops in nested loops and create beautiful patterns from it.
Below are given some pattern using alphabets. Our task is to write programs for the below given patterns, such that each pattern should print on the basis of given input ‘n’, when n = count of alphabets.

Recommended: Please try your approach on {IDE} first, before moving on to the solution.

First Pattern :

C++

// C++ code for triangular  
// patterns of alphabets  
#include <bits/stdc++.h> 
using namespace std; 
  
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) 
    { 
        for (j = i; j <= n; j++) 
        { 
            cout << (char)('A' - 1 + j) << " "; 
        } 
        cout << endl; 
    } 
    return 0; 
} 
  
// This code is contributed by 
// shubhamsingh10 

C

#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = i; j <= n; j++) { 
            printf("%c", 'A' - 1 + j); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

class GFG 
{ 
public static void main(String args[]) 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++)  
    { 
        int ch = 65; 
            for (j = i; j <= n; j++)  
            { 
                System.out.print((char)(ch -1 + j) + " "); 
            } 
        System.out.print("\n"); 
    } 
} 
} 
  
// This code is contributed 
// by Akanksha Rai 

Python3

# Python 3 code for triangular  
# patterns of alphabets  
n = 5
for i in range(1, n + 1): 
    for j in range(i, n + 1): 
        print(chr(ord('A') - 1 + j), end = ' ') 
    print() 
  
# This code is contributed 
# by SamyuktaSHegde  

C#

using System; 
class GFG 
{ 
public static void Main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++)  
    { 
        int ch = 65; 
            for (j = i; j <= n; j++)  
            { 
                Console.Write((char)(ch - 1 + j) + " "); 
            } 
        Console.Write("\n"); 
    } 
} 
} 
  
// This code is contributed 
// by Akanksha Rai 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
    for ($i = 1; $i <= $n; $i++) 
    { 
        for ($j = $i; $j <= $n; $j++)  
        { 
            echo chr(65 - 1 + $j)." "; 
        } 
        echo "\n"; 
    } 
  
// This code is contributed by mits  
?> 

Output:

A B C D E 
B C D E
C D E
D E
E

Second Pattern :

C++

#include <bits/stdc++.h> 
using namespace std; 
int main() 
{ 
    int i, j, n = 5; 
    for (i = n; i >= 1; i--) { 
        for (j = 1; j <= i; j++) { 
            cout << (char)('A' - 1 + i) << " "; 
        } 
        cout << endl; 
    } 
    return 0; 
} 
  
// This code is contributed by shubhamsingh10 

C

#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = n; i >= 1; i--) { 
        for (j = 1; j <= i; j++) { 
            printf("%c ", 'A' - 1 + i); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

class GFG  
{ 
      
// Driver code 
public static void main(String[] args) 
{ 
    int i, j, n = 5; 
    for (i = n; i >= 1; i--)  
    { 
        for (j = 1; j <= i; j++)  
        { 
            System.out.printf("%c ", 'A' - 1 + i); 
        } 
        System.out.printf("\n"); 
    } 
    } 
} 
  
// This code is contributed by PrinciRaj1992  

Python3

# Python3 code for triangular 
# patterns of alphabets 
n = 5
for i in range(n, 0, -1): 
    for j in range(1, i + 1, 1): 
        print(chr(ord('A') - 1 + i),     
                         end = ' ') 
    print() 
  
# This code is contributed by Rajput-Ji 

C#

// C# code for triangular 
// patterns of alphabets 
using System; 
      
class GFG  
{ 
      
// Driver code 
public static void Main(String[] args) 
{ 
    int i, j, n = 5; 
    for (i = n; i >= 1; i--)  
    { 
        for (j = 1; j <= i; j++)  
        { 
            Console.Write("{0} ",  
                         (char)('A' - 1 + i)); 
        } 
        Console.Write("\n"); 
    } 
} 
} 
  
// This code is contributed  
// by Princi Singh 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
    for ($i = $n; $i >= 1; $i--)  
    { 
        for ($j = 1; $j <= $i; $j++)  
        { 
            echo chr(65 - 1 + $i)." "; 
        } 
        echo "\n"; 
    } 
  
// This code is contributed by mits  
?> 

Output:

E E E E E
D D D D
C C C
B B
A

Third Pattern :

C++

#include <iostream> 
using namespace std; 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = 1; j <= i; j++) { 
            cout << (char)('A' + j - 1) << " "; 
        } 
        cout << endl; 
    } 
    return 0; 
} 
  
// This code is contributed by shubhamsingh10 

C

#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = 1; j <= i; j++) { 
            printf("%c ", 'A' + j - 1); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

import java.io.*; 
  
class GFG  
{ 
    public static void main (String[] args)  
    { 
        int i, j, n = 5; 
        for (i = 1; i <= n; i++)  
        { 
            int ch = 65; 
            for (j = 1; j <= i; j++)  
            { 
                System.out.print(((char)ch)); 
                ch++; 
            } 
        System.out.println(); 
        } 
    } 
} 
  
//This code is contributed by m_kit 

Python3

# Python3 code for triangular 
# patterns of alphabets 
if __name__ == '__main__': 
      
    n = 5; 
    for i in range(1, n + 1): 
        for j in range(1, i + 1): 
            print(chr(ord('A') + j - 1),  
                             end = " "); 
  
        print(""); 
      
# This code is contributed by 29AjayKumar 

C#

// C# code for triangular 
// patterns of alphabets 
using System; 
  
class GFG 
{ 
    static public void Main () 
    { 
          
        int i, j, n = 5; 
        for (i = 1; i <= n; i++)  
        { 
            int ch = 65; 
            for (j = 1; j <= i; j++)  
            { 
                Console.Write(((char)ch)); 
                ch++; 
            } 
        Console.WriteLine(); 
        } 
    } 
} 
  
// This code is contributed by ajit 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
    for ($i = 1; $i <= $n; $i++)  
    { 
        for ($j = 1; $j <= $i; $j++)  
        { 
              
            //Ascii value of A is 65 
            echo chr(65 + $j - 1)." "; 
        } 
        echo "\n"; 
    } 
  
// This code is contributed by mits  
?> 

Output:

A
A B
A B C
A B C D 
A B C D E

Fourth Pattern :

C++

#include <iostream> 
using namespace std; 
  
int main()  
{  
    int i, j, n = 5;  
    for (i = n; i >= 1; i--) {  
        for (j = i; j <= n; j++) {  
            cout << (char)('A' + j - 1) << " ";  
        }  
        cout << endl;  
    }  
    return 0;  
}  
  
// This code is contributed by Shubhamsingh10 

C

#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = n; i >= 1; i--) { 
        for (j = i; j <= n; j++) { 
            printf("%c ", 'A' + j - 1); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

// Java code for triangular 
// patterns of alphabets 
class GFG 
{ 
    public static void main(String[] args)  
    { 
        int i, j, n = 5; 
        for (i = n; i >= 1; i--)  
        { 
            for (j = i; j <= n; j++) 
            { 
                System.out.printf("%c ", ('A' + j - 1)); 
            } 
            System.out.println(""); 
        } 
    } 
} 
  
// This code is contributed by PrinciRaj1992  

Python3

# Python3 code for triangular 
# patterns of alphabets 
if __name__ == '__main__': 
    n = 5; 
    for i in range(n, 0, -1): 
        for j in range(i, n + 1, 1): 
            print(chr(ord('A') + j - 1),  
                             end = " "); 
  
        print(""); 
  
# This code is contributed by Rajput-Ji 

C#

// C# code for triangular 
// patterns of alphabets 
using System; 
  
class GFG 
{ 
    public static void Main()  
    { 
        int i, j, n = 5; 
        for (i = n; i >= 1; i--)  
        { 
            for (j = i; j <= n; j++) 
            { 
                Console.Write("{0} ",(char)('A' + j - 1)); 
            } 
            Console.WriteLine(""); 
        } 
    } 
} 
  
// This code is contributed by Code_Mech 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
for ($i = $n; $i >= 1; $i--) 
{ 
    for ($j = $i; $j <= $n; $j++) 
    { 
        echo chr(65 + $j - 1)." "; 
    } 
    echo "\n"; 
} 
  
// This code is contributed by mits  
?> 

Output:

E
D E
C D E
B C D E
A B C D E

Fifth Pattern :

C++

#include <iostream> 
using namespace std; 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = n; j >= i; j--) { 
            cout <<(char)('A' - 1 + i)<<" "; 
        } 
        cout << endl; 
    } 
    return 0; 
} 
  
// This code is contributed by shubhamsingh10 

C

#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = n; j >= i; j--) { 
            printf("%c ", 'A' - 1 + i); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

/* Java program to find best 
meeting point in 2D array*/
import java.util.*; 
  
public class GFG  
{ 
  
public static void main(String[] args)  
{ 
    int i, j, n = 5;  
    for (i = 1; i <= n; i++)  
    {  
        for (j = n; j >= i; j--)  
        {  
            System.out.printf("%c ", ('A' - 1 + i));  
        }  
        System.out.println("");;  
    } 
} 
}  
  
// This code is contributed by 29AjayKumar 

Python3

# Python3 code for triangular 
# patterns of alphabets 
if __name__ == '__main__': 
    i, j, n = 0, 0, 5; 
    for i in range(1, n + 1): 
        for j in range(n, i - 1, -1): 
            print(chr(ord('A') - 1 + i), end = " "); 
        print(""); 
  
# This code is contributed by Princi Singh 

C#

/* C# program to find best 
meeting point in 2D array*/
using System; 
  
class GFG  
{ 
  
// Driver code 
public static void Main(String[] args)  
{ 
    int i, j, n = 5;  
    for (i = 1; i <= n; i++)  
    {  
        for (j = n; j >= i; j--)  
        {  
            Console.Write("{0} ", (char)('A' - 1 + i));  
        }  
        Console.WriteLine("");;  
    } 
} 
} 
  
// This code contributed by Rajput-Ji 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
    for ($i = 1; $i <= $n; $i++) 
    { 
        for ($j = $n; $j >= $i; $j--)  
        { 
            echo chr(65 - 1 + $i)." "; 
        } 
        echo "\n"; 
    } 
  
// This code is contributed by mits  
?> 

Output:

A A A A A
B B B B
C C C 
D D 
E

Sixth Pattern :

C++

// C++ code for triangular 
// patterns of alphabets 
#include <iostream> 
using namespace std; 
  
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = i; j >= 1; j--) { 
            cout << (char)('A' + j - 1) << " "; 
        } 
        cout << endl; 
    } 
    return 0; 
} 
  
// This code is contributed by SHUBHAMSINGH10 

C

// C code for triangular 
// patterns of alphabets 
#include <stdio.h> 
int main() 
{ 
    int i, j, n = 5; 
    for (i = 1; i <= n; i++) { 
        for (j = i; j >= 1; j--) { 
            printf("%c ", 'A' + j - 1); 
        } 
        printf("\n"); 
    } 
    return 0; 
} 

Java

// Java code for triangular 
// patterns of alphabets 
class GFG 
{ 
  
    public static void main(String[] args)  
    { 
        int i, j, n = 5; 
        for (i = 1; i <= n; i++) 
        { 
            for (j = i; j >= 1; j--)  
            { 
                System.out.printf("%c ", 'A' + j - 1); 
            } 
            System.out.printf("\n"); 
        } 
    } 
} 
  
// This code is contributed by Rajput-Ji 

Python3

# Python3 code for triangular 
# patterns of alphabets 
  
if __name__ == '__main__': 
      
    i, j, n = 0, 0, 5; 
    for i in range(1, n + 1): 
        for j in range(i, 0, -1): 
            print(chr(ord('A') + j - 1),  
                             end = " "); 
  
        print(); 
  
# This code is contributed by Rajput-Ji 

C#

// C# code for triangular  
// patterns of alphabets  
using System; 
  
class GFG  
{  
  
    // Driver code 
    public static void Main(String[] args)  
    {  
        int i, j, n = 5;  
        for (i = 1; i <= n; i++)  
        {  
            for (j = i; j >= 1; j--)  
            {  
                Console.Write("{0} ",  
                    Convert.ToChar('A' + j - 1));  
            }  
            Console.Write("\n");  
        }  
    }  
}  
  
// This code is contributed by PrinciRaj1992 

PHP

<?php 
// PHP code for triangular 
// patterns of alphabets 
  
$n = 5; 
for ($i = 1; $i <= $n; $i++)  
{ 
    for ($j = $i; $j >= 1; $j--)  
    { 
        echo chr(65 + $j - 1)." "; 
    } 
    echo "\n"; 
} 
  
// This code is contributed by mits  
?> 

Output:

A 
B A
C B A
D C B A
E D C B A

My Personal Notes

Recommended: Please try your approach on {IDE} first, before moving on to the solution.

C++

C

Java

Python3

C#

PHP

C++

C

Java

Python3

C#

PHP

C++

C

Java

Python3

C#

PHP

C++

C

Java

Python3

C#

PHP

C++

C

Java

Python3

C#

PHP

C++

C

Java

Python3

C#

PHP

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