Alphabet Pattern

C program triangle alphabet pattern using while loop

C program triangle alphabet pattern using while loop

In this tutorial, we will discuss C 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 pyramid triangle program with coding using nested while loop and also we get input from user using scanf() function in C language

Pattern programs

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

Triangle alphabet pattern 1

Program 1

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            j=1;
        while(j<=i){
        printf("%c",'A'-1+i);
        j++;
    }
    i++;
    printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            j=1;
        while(j<=i){
        printf("%c",'A'-1+j);
        j++;
    }
    i++;
    printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            j=rows;
        while(j>=i)
{
    printf("%C",'A'-1+i);
    j--;
}
i++;
printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=rows;
    while(i>=1){
            j=i;
        while(j<=rows)
{
    printf("%c",'A'+j-1);
    j++;
}
i--;
printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            j=i;
        while(j>=1)
{
    printf("%c",'A'+j-1);
    j--;
}
i++;
printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    i=rows;
    printf("\n");
    while(i>=1){
            j=rows;
        while(j>=i)
{

    printf("%c",'A'+j-1);
    j--;
}
i--;
printf("\n");
}
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter te  number of rows: 6

F
FE
FED
FEDC
FEDCB
FEDCBA

Triangle alphabet pattern 7

Program 7

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    i=rows;
    printf("\n");
    while(i>=1){
            j=rows;
        while(j>=i)
{

    printf("%c",'A'-1+i);
    j--;
}
i--;
printf("\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 8

Program 8

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    i=rows;
    printf("\n");
    while(i>=1){
            j=1;
        while(j<=i)
{

    printf("%c",'A'-1+i);
    j++;
}
i--;
printf("\n");
}
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows: 6

FFFFFF
EEEEE
DDDD
CCC
BB
A

Triangle alphabet pattern 9

Program 9

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    printf("\n");
    i=1;
    while(i<=rows){
            j=rows;
        while(j>=i)
{

    printf("%c",'A'-1+j);
    j--;
}
i++;
printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    printf("\n");
    i=rows;
    while(i>=1){
            j=i;
        while(j>=1)
{

    printf("%c",'A'-1+j);
    j--;
}
i--;
printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    char ch='A';
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
        j=1;
        while(j<=i){
        printf("%c ",ch++);
        j++;
    }
    i++;
    printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows,num,count;
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            num=rows-1;
    count=i;
j=1;
        while( j<=i){
        printf("%2c",(char)(count+64));
        count=count+num;
        num--;
         j++;
    }
    i++;
    printf("\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 <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows: \n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
        j=1;
        while(j<=(i*2-1)){
        printf("%c",(char)(j+64));
        j++;
    }
    i++;
    printf("\n");
    }

    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6
A
ABC
ABCDE
ABCDEFG
ABCDEFGHI
ABCDEFGHIJK

Triangle alphabet pattern 14

Program 14

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int i,j,rows;
    printf("Enter the number of rows\n");
    scanf("%d",&rows);
    i=1;
    while(i<=rows){
            j=i;
        while(j<=rows){
            printf("%c",(char)(j+64));
            j++;
        }
        i++;
        printf("\n");
    }
    getch();
    return 0;
}

When the above code executed, it produces the following results

Enter the number of rows
6
ABCDEF
BCDEF
CDEF
DEF
EF
F

 

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