c program to display alphabet pattern L with asterisk

                                            C program

C program to Print  Alphabet  L star pattern 

Example 

#include <stdio.h>

int main() {

    int a,b;

    int n = 7; // height of the L

    for (a = 0; a < n; a++)

{

        for (b = 0; b < n; b++)

{

            // Print * for the left vertical line and the bottom horizontal line

            if (b == 0 || (a == n - 1 && b < n))

{

                printf("*");

            } else {

                printf(" ");

            }

        }

        printf("\n");

    }

    return 0;

}

This C Program Print a pattern in the shape of the capital letter L using asterisks "*"

Explain Program

Step :1

Header

#include <stdio.h>

•  standard input-output library use functions like printf().

Step :2

Main Function Declaration

int main() {

• The entry point of the program. Execution starts 

Step :3

Variable Declarations

int a, b;

int n = 7; // height of the L

• a and b are loop counters.

• n is the height of the letter L and also the number of rows in the output

Step :4

Outer Loop 

for (a = 0; a < n; a++)

• Runs from a = 0 to a = 6 

 iteration of this loop correspond to one row of the output

Step :5

Inner Loop (Controls Columns)

for (b = 0; b < n; b++)

• Run  b = 0 to b = 6 (7 iteration).

• Each iteration of this loop correspond to one column in the current row

Step :6

.Logic to Print 

if (b == 0 || (a == n - 1 && b < n))

• b == 0   

• This is true for the first column in every row, Explanation we print a * in the first column of every row — forming the vertical line of the "L".

• (a == n - 1 && b < n):

• This is true only we are on the last row (a == 6) and b < 7 for all columns of the last row.

• So on the last row, it prints * across the entire row — forming the bottom horizontal line of the "L".

c

Step :7

printf("*");

Prints an asterisk  the condition is true.

Step :8

printf(" ");

Prints a space

Step :9

printf("\n");

•  cursor to the next line after printing each row.

C program to Print  Alphabet  L star pattern 

Output

Summary

• Outer loop: controls rows.

• Inner loop: controls what to print in each column of the row.

• Two conditions decide where to print *:

  1. First column (b == 0)

  2. Entire last row (a == n - 1)

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