patterns in c programing

 

Pattern 1: Square of Asterisks

c

#include <stdio.h>

int main() {
    int rows, cols, i, j;

    printf("Enter number of rows and columns: ");
    scanf("%d %d", &rows, &cols);

    for (i = 1; i <= rows; i++) {
        for (j = 1; j <= cols; j++) {
            printf("* ");
        }
        printf("\n");
    }



    return 0;
}
 

Output for Pattern 1:

For input rows = 4 and columns = 4:

markdown

* * * *
* * * *
* * * *
* * * *

Pattern 2: Right Triangle of Asterisks

c

#include <stdio.h>

int main() {
    int rows, i, j;

    printf("Enter number of rows: ");
    scanf("%d", &rows);

    for (i = 1; i <= rows; i++) {
        for (j = 1; j <= i; j++) {
            printf("* ");
        }
        printf("\n");
    }

    return 0;
}

Output for Pattern 2:

For input rows = 5:

markdown

* 
* * 
* * * 
* * * * 
* * * * *

Pattern 3: Inverted Right Triangle of Asterisks

c

#include <stdio.h>

int main() {
    int rows, i, j;

    printf("Enter number of rows: ");
    scanf("%d", &rows);

    for (i = rows; i >= 1; i--) {
        for (j = 1; j <= i; j++) {
            printf("* ");
        }
        printf("\n");
    }

    return 0;
}

Output for Pattern 3:

For input rows = 4:

markdown

* * * * 
* * * 
* * 
*