The spiral pattern representing letters is as follows-

##The logic used to represent letters in the spiral model is as follows-
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | if (rows<=13 && rows>=1){
for (i=1;i<=rows*2;i+=2){
if (k%2==1){
printf( "%c %c" ,i+64,i+65);
k++;
} else {
printf( "%c %c" ,i+65,i+64);
k++;
}
printf( "</p><p>" );
}
}
else {
printf( "Please Enter from 1 to 13 only</p><p>" );
}
|
Copy after login
Program
The following is a C language program to represent the letters in the spiral pattern-
Live demonstration
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | # include <stdio.h>
main(){
int i,rows,k=1;
printf( "Enter number of Rows for Spiral Alpha Pattern from 1 to 13</p><p>" );
scanf( "%d" ,&rows);
if (rows<=13 && rows>=1){
for (i=1;i<=rows*2;i+=2){
if (k%2==1){
printf( "%c %c" ,i+64,i+65);
k++;
} else {
printf( "%c %c" ,i+65,i+64);
k++;
}
printf( "</p><p>" );
}
} else {
printf( "Please Enter from 1 to 13 only</p><p>" );
}
}
|
Copy after login
Output
When the above program is executed, the following results will be produced-
1 2 3 4 5 6 7 8 9 10 11 12 | Enter number of Rows for Spiral Alpha Pattern from 1 to 13
10
A B
D C
E F
H G
I J
L K
M N
P O
Q R
T S
|
Copy after login
The above is the detailed content of C program to represent letters in spiral pattern. For more information, please follow other related articles on the PHP Chinese website!