Write a C program to print X star pattern series using loop. How to print the X star pattern series using for loop in C programming. Logic to print X using stars in C program.
Example:
Input N: 5
Output:
C program to print hollow pyramid star pattern.
C program to print hollow inverted pyramid star pattern.
If you bisect the pattern horizontally you will get two pattern.
X star pattern is a combination of both of these patterns. Where the first one is similar to the hollow inverted pyramid and second one to hollow pyramid star pattern. Hence if you haven't gone through these two posts I recommend you to go through them before continuing. As I won't be getting in detail about these two patterns here.
![X star pattern in C]()
Happy coding ;)
Example:
Input N: 5
Output:
Required knowledge:
Basic C programming, If else, LoopLogic to print X star pattern
Logic to print the X star pattern can really be complex and confusing if you haven't gone through two previous star pattern programs.C program to print hollow pyramid star pattern.
C program to print hollow inverted pyramid star pattern.
If you bisect the pattern horizontally you will get two pattern.
X star pattern is a combination of both of these patterns. Where the first one is similar to the hollow inverted pyramid and second one to hollow pyramid star pattern. Hence if you haven't gone through these two posts I recommend you to go through them before continuing. As I won't be getting in detail about these two patterns here.
Program to print X star pattern
/**
* C program to print X star pattern series
*/
#include <stdio.h>
int main()
{
int i, j, N;
printf("Enter N: ");
scanf("%d", &N);
// Print first upper hollow inverted pyramid
for(i=N; i>=1; i--)
{
//Prints trailing spaces
for(j=i; j<N; j++)
{
printf("");
}
//Prints upper hollow triangular part
for(j=1; j<=(2*i-1); j++)
{
if(j==1 || j==(2*i-1))
{
printf("*");
}
else
{
printf("");
}
}
printf("\n");
}
// Prints the lower half hollow pyramid
for(i=2; i<=N; i++)
{
//Prints trailing spaces
for(j=i; j<N; j++)
{
printf("");
}
//Prints lower hollow triangular part
for(j=1; j<=(2*i-1); j++)
{
if(j==1 || j==(2*i-1))
{
printf("*");
}
else
{
printf("");
}
}
printf("\n");
}
return 0;
}
Output
Enter N: 5
* *
* *
* *
* *
*
* *
* *
* *
* *
Snapshot
Happy coding ;)