Question

In: Computer Science

Write a program called x.c that reads an integer n from standard input, and prints an...

Write a program called x.c that reads an integer n from standard input, and prints an nxn pattern of asterisks and dashes in the shape of an "X".

You can assume n is odd and >= 5. Solve this problem using only while loop.

Solution:

./x
Enter size: 5
*---*
-*-*-
--*--
-*-*-
*---*
./x
Enter size: 9
*-------*
-*-----*-
--*---*--
---*-*---
----*----
---*-*---
--*---*--
-*-----*-
*-------*
./x
Enter size: 15
*-------------*
-*-----------*-
--*---------*--
---*-------*---
----*-----*----
-----*---*-----
------*-*------
-------*-------
------*-*------
-----*---*-----
----*-----*----
---*-------*---
--*---------*--
-*-----------*-
*-------------*

Solutions

Expert Solution

Code For Above Problem:


#include <stdio.h>

int main()
{
    int size;
        //asking user to enter size
    printf("Enter size: ");
    scanf("%d",&size);
        //for 'size' number of rows
        int i=1;
        while(i<=size)
    {
                int j=1;
                //for 'size' number of columns
        while(j<=size)
        {
                        //if it is diagonal print '*' otherwise print '-'
                        //i==j --> for left to right diagonal
                        //(i+j)==(size+1) -->right to left diagonal
            if(i==j || (i+j)==(size+1))
            {
                printf("*");
            }
            else
            {
                printf("-");
            }
                        j++;
        }
                i++;
                //print new after each row
        printf("\n");
    }
    return 0;
}

Sample Runs Results:

./x
Enter size: 5
*---*
-*-*-
--*--
-*-*-
*---*
./x
Enter size: 9
*-------*
-*-----*-
--*---*--
---*-*---
----*----
---*-*---
--*---*--
-*-----*-
*-------*
./x
Enter size: 15
*-------------*
-*-----------*-
--*---------*--
---*-------*---
----*-----*----
-----*---*-----
------*-*------
-------*-------
------*-*------
-----*---*-----
----*-----*----
---*-------*---
--*---------*--
-*-----------*-
*-------------*

Image Of Code:

Image Of Sample Runs Results:


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