Question

Write a program which prompts the user to enter a number of rows, and prints a hollow square star pattern with 2 diagonals. Note: you can assume that the integer will always be > 1 and will be an odd number. For example: Input Result 5 Enter number of rows: 5 ***** ** ** * * * ** ** ***** 9 Enter number of rows: 9 ** ** ** * * * * * * * * * * ** ** *********

Answer 1

#include <stdio.h>
main()
{
int i=0,j=0,n;//n denotes no.of rows
printf("Enter number of rows: ");
scanf("%d",&n); //taking no.of rows from user
for(i=1;i<=n;++i)
{
for(j=1;j<=n;++j)
{   //for 1st and last row we print all stars so we consider 1=1 and i=n
   //for ist column and last column we print all stars so we take j==1 and j==n
   //we print all both diagonal elements so we take i==j for diagonal 1 and j==(n-i+1) for diagonal 2
if((i==1) || (i==n) || (j==1) || (j==n) || (i==j)|| (j==(n - i + 1))) //condition to print star or not
printf("*");//Prints star
else
   printf(" "); //Prints space
}
printf("\n"); // Prints new line
}
}

1 #include <stdio.h> 2 main() 39 4 int i=0,j=0,n;//n denotes no.of rows 5 printf("Enter number of rows: "); 6 scanf("%d",&n); //taking no.of rows from user 7 for(i=1;i<=n; ++i) 8 9 for(j=1;j<=n; ++i) 10 { //for 1st and last row we print all stars so we consider 1=1 and i=n 11 //for ist column and last column we print all stars so we take j==1 and j==n 12 //we print all both diagonal elements so we take i==j for diagonal 1 and j==(n-i+1) for diagonal 2 13 if((i==1) || (i==n) || (j==1) || (j==n) || (i==j)|| (j==(n - i + 1))) //condition to print star or not 14 printf("*");//Prints star 15 else 16 printf(" "); //Prints space 17 18 printf("\n"); // Prints new line 19 20-3 } }

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