• On September 10, 2021
• By Karmehavannan
• 0 Comment
• Categories: Alphabet Pattern, Floyd's triangle
• Tags: C++ patterns, Cpp language, Pattern

Cpp program triangle alphabet pattern using while loop

Cpp program triangle alphabet pattern using while loop

In this tutorial, we will discuss the Cpp program triangle alphabet pattern using while loop

In this post, we will learn how to displayed  Floyd’s triangle alphabet pattern  using while loop or nested while loop in C++ programming language

here, we displayed some alphabet Floyd’s triangle program with coding using nested while loop and also we get input from the user using cin() function in C++ language

the user can provide numbers as they wish and get the alphabet pattern according to their input

Triangle alphabet pattern 1

Program 1

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
   cout<<"\n";
    i=1;
   while(i<=rows){
        j=1;
    while(j<=i){
        cout<<(char)(i+64);
        j++;
    }
    i++;
    cout<<"\n";
    }
getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

A 
BB
CCC
DDDD
EEEEE
FFFFFF

Triangle alphabet pattern 2

Program 2

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
   cout<<"\n";
    i=1;
   while(i<=rows){
        j=1;
    while(j<=i){
        cout<<(char)(j+64);
        j++;
    }
    i++;
    cout<<"\n";
    }
getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

A
AB
ABC
ABCD
ABCDE
ABCDEF

Triangle alphabet pattern 3

Program 3

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
cout<<"\n";
    i=1;
    while(i<=rows){
        j=i;
        while(j<=rows){
          cout<<((char)(i+64));
          j++;
        }
        i++;
        cout<<"\n";
    }

getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

AAAAAA
BBBBB
CCCC
DDD
EE
F

Triangle alphabet pattern 4

Program 4

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=rows;
    while(i>=1){
        j=i;
        while(j<=rows){
          cout<<((char)(j+64));
          j++;
        }
        i--;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

F
EF
DEF
CDEF
BCDEF
ABCDEF

Triangle alphabet pattern 5

Program 5

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=1;
    while(i<=rows){
        j=i;
        while(j>=1){
          cout<<((char)(j+64));
          j--;
        }
        i++;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

A
BA
CBA
DCBA
EDCBA
FEDCBA

Triangle alphabet pattern 6

Program 6

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=1;
    while(i<=rows){
        j=1;
        while(j<=i){
          cout<<((char)(rows-i+1+64));
          j++;
        }
        i++;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

F
EE
DDD
CCCC
BBBBB
AAAAAA

Triangle alphabet pattern 7

Program 7

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=rows;
    while(i>=1){
        j=rows;
        while(j>=i){
          cout<<((char)(j+64));
          j--;
        }
        i--;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

F
FE
FED
FEDC
FEDCB
FEDCBA

Triangle alphabet pattern 8

Program 8

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=rows;
    while(i>=1){
        j=1;
        while(j<=i){
          cout<<((char)(i+64));
          j++;
        }
        i--;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter te number of rows
6

FFFFFF
EEEEE
DDDD
CCC
BB
A

Triangle alphabet pattern 9

Program 9

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=1;
    while(i<=rows){
        j=rows;
        while(j>=i){
          cout<<((char)(j+64));
          j--;
        }
        i++;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

FEDCBA
FEDCB
FEDC
FED
FE
F

Triangle alphabet pattern 10

Program 10

#include <iostream>
#include <conio.h>

using namespace std;

int main()
{
    int i,j,rows;
    cout << "Enter the number of rows" << endl;
    cin>>rows;
     cout<<"\n";
    i=rows;
    while(i>=1){
        j=i;
        while(j>=1){
          cout<<((char)(j+64));
          j--;
        }
        i--;
        cout<<"\n";
    }
getch();

    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6

FEDCBA
EDCBA
DCBA
CBA
BA
A

Triangle alphabet pattern 11

Program 11

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,j,rows;
    char ch='A';
    cout<<"Enter the number of rows: ";
    cin>>rows;
    i=1;
    while(i<=rows)
    {
        j=1;
        while(j<=i){
            cout<<ch++<<" ";
            j++;
        }
        i++;
        cout<<"\n";
    }
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows: 6
A
B C
D E F
G H I J
K L M N O
P Q R S T U

Triangle alphabet pattern 12

Program 12

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,j,rows,num,count1;
    cout<<"Enter the number of rows: ";
    cin>>rows;
    i=1;
    while(i<=rows)
    {
        num=rows-1;
        count1=i;

        j=1;
        while(j<=i){
            cout<<(char)(count1+64)<<" ";
            count1=count1+num;
            num--;
            j++;
        }
        i++;
        cout<<"\n";
    }
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows: 6
A
B G
C H L
D I M P
E J N Q S
F K O R T U

Triangle alphabet pattern 13

Program 13

#include <iostream>
#include <conio.h>
using namespace std;

int main()
{
    int i,j,rows;
    char ch='A';
    cout<<"Enter the number of rows: ";
    cin>>rows;
    i=1;
    while(i<=rows)
    {
        j=1;
        while(j<=(i*2-1)){
            cout<<((char)(j+64))<<" ";
            j++;
        }
        i++;
        cout<<"\n";
    }
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows: 6
A 
A B C
A B C D E
A B C D E F G
A B C D E F G H I
A B C D E F G H I J K

 

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