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C program to Print Alphabet N star pattern 
C program to Print Alphabet N star pattern
Example
#include <stdio.h>
int main()
{
int a,b;
int n = 7; // height of the N (can be adjusted)
for (a = 0; a < n; a++)
{
for (b = 0; b < n; b++)
{
// Print * for the first column, last column, and diagonal
if (b == 0 || b == n - 1 || b == a)
printf("*");
else
printf(" ");
}
printf("\n");
}
return 0;
}
This C Program Print a pattern in the shape of the capital letter R using asterisks (*)
Explain Program
Step :1
#include <stdio.h>
This includes the Standard Input Output library. It is necessary to use
functions like printf() for output.
Step :2
int main()
This is the main function from where the execution of the program
Step :3
int a, b;
These are loop variables:
- a: for controlling rows
- b: for controlling columns
Step :4
int n = 7;
defines the height (and width) of the pattern. The 'N' pattern will be print in a 7x7 grid. You can change n to any positive integer to scale the size of the 'N'
Step :5
Outer Loop:
for (a = 0; a < n; a++)
This controls the rows of the pattern.
- a = 0 to a = 6 ( n = 7)
- For each value of a, one full line (row) of output is printed
Step :6
Inner Loop:
for (b = 0; b < n; b++)
This controls the columns within each row.
- b = 0 to b = 6 for each row
Step :7
Conditional:
if (b == 0 || b == n - 1 || b == a)
This is the heart of the logic. It decides where to print an asterisk *.
- b == 0: First column → left vertical line of the 'N'
- b == n - 1: Last column → right vertical line of the 'N'
- b == a: Diagonal top-left to bottom-right (row index == column index)
If any of the three conditions is true, print a *. Otherwise, print a space
( ).
Step :8
printf("*");
printf(" ");
- Print a * when the condition is met (position of vertical or diagonal part of 'N')
- Print a space otherwise
Step :9
printf("\n");
After each row is completed move courser next line to start the next
C program to Print Alphabet N star pattern
Output
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