Half Diamond Pattern in C

Flow Control
If-else Statement in C
Programs on if-else
Switch Case in C
Switch case Programs
Conditional Operator
While loop in C
Do-while loop in C
While vs do-while
For loop in C
Break keyword in C
Continue keyword in C
Break vs Exit in C
Goto keyword in C
☕️ Flow Control Programs
Largest in 3 Numbers
Find Grade of student
Find the absolute value
Vowel or Consonant
Leap Year Program
Simple calculator in C
Check Odd or Even 
Roots of Quadratic Equation
Find Reverse of Number
Factors of a number in C
Generate Multiplication table
Find Power of a Number
Find GCD and LCM
Find factorial of Number
Count Number of Digits
Sum of digits in Number
Sum of N Natural Numbers
Sum of Squares of Natural No.
Find Sum of Odd Numbers
Find the Sum of Series
Find Fibonacci series in C
Sum of the Fibonacci series
Sum until enters +ve numbers
Sum of max 10 no. & Skip -ve
☕️ C Conversion Programs
Celsius to Fahrenheit
Fahrenheit to Celsius
Decimal ↔ Binary
Decimal ↔ Octal
Octal ↔ Binary in C
☕️ Number Programs in C
Prime Number in C
Strong Number in C
Krishnamurthy Number
Neon Number in C
Palindrome number
Perfect Number in C
Armstrong Number
☕️ Pattern Programs in C
Pattern programs in C
Printing pattern using loops
Floyd’s triangle Program
Pascal Triangle Program
Pyramid Star Pattern in C
Diamond Pattern Programs
Half Diamond pattern in C
Print Diamond Pattern
Hollow Diamond Pattern
Diamond Pattern of Numbers

There are many pattern programs are written by programmers for practice purposes. The diamond pattern programs are one of them. Here we will write half diamond pattern in the C programming language.

C Program to Print Half Diamond Star Pattern

Write a C program to print the half diamond using stars. If the input n=5, the output is:-

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

For input n, there are 2*n-1 rows. For row (say i) if i<n then rows having i stars, else it has -(2*n-i) rows.

In the below program, the star variable holds the number of stars in the nth row. In every row, the star variable is updated. When i>n then (2*n-i) will be negative so, the abs() function is used to find the absolute value of (2*n-i).

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int n, star;

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

  for(int i=1; i< 2*n; i++)
  {
    if(i < n) star=i;
    else star = abs(2*n-i);

    for(int j=1; j<=star; j++)
    printf("*"); 

    printf("\n"); //next line
  }
  return 0;
}

C Program to Print Mirrored Half Diamond Star Pattern

Write a C program to display mirrored half diamond using the stars. For input n=5 the output is,

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

For input n there are 2*n-1 rows. In the ith row, there are n-i (positive value) spaces, after that there are i stars are present.

Program to display mirrored half diamond star pattern using the C programming language.

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int n;

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

  for(int i=1; i<= 2*n; i++)
  {
    for(int j=1; j<=n; j++)
    if(j<= abs(n-i)) printf(" ");
    else printf("*");

    printf("\n"); //next line
  }

  return 0;
}

Half Diamond Pattern Programs Using Numbers

Write a C program to display the given below half diamond using numbers. For input n = 4 the output is,

1
2*2
3*3*3
4*4*4*4
3*3*3
2*2
1

For input n there are 2*n-1 rows are there. In ith row up to 2*i-1 places, on every even place, there is a star and on odd places the value of i is present.

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int n, place;

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

  for(int i=1; i< 2*n; i++)
  {
    if(i < n) place=i;
    else place = abs(2*n-i);

    for(int j=1; j< 2*place; j++)
    if(j%2==0) printf("*"); //stars
    else printf("%d",place); //numbers

    printf("\n"); //next line
  }

  return 0;
}

Write a C program for the given below number pattern. The input n=5, the output is,

1
12
123
1234
12345
1234
123
12
1

Code for the above pattern,

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int n, place, a;

  printf("Enter number of rows: ");
  scanf("%d",&n);
  
  for(int i=1; i< 2*n; i++)
  {
    a=1;

    if(i < n) place=i;
    else place = abs(2*n-i);
    
    for(int j=1; j<=place; j++)
    printf("%d",a++);

    printf("\n"); //next line
  }

  return 0;
}

Similar Pattern

Write a C program for the given below pattern. For the input n=5, the output is:-

1
123
12345
1234567
123456789
1234567
12345
123
1

Code for the above pattern,

#include<stdio.h>
#include<stdlib.h>
int main()
{
  int n, place, a;

  printf("Enter number of rows: ");
  scanf("%d",&n);
  
  for(int i=1; i< 2*n; i++)
  {
    a=1;

    if(i < n) place=i;
    else place = abs(2*n-i);
    
    for(int j=1; j<=2*place-1; j++)
    printf("%d",a++);

    printf("\n"); // next line
  }

  return 0;
}

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Flow Control
If-else Statement in C
Programs on if-else
Switch Case in C
Switch case Programs
Conditional Operator
While loop in C
Do-while loop in C
While vs do-while
For loop in C
Break keyword in C
Continue keyword in C
Break vs Exit in C
Goto keyword in C
☕️ Flow Control Programs
Largest among 3 Numbers
Find Grade of student
Find the absolute value
Check Vowel or Consonant
Leap Year Program
Simple calculator in C
Check Odd or Even 
Roots of Quadratic Equation
Find Reverse of Number
Factors of a number in C
Generate Multiplication table
Find Power of a Number
Find GCD and LCM
Find factorial of Number
Count Number of Digits
Sum of digits in Number
Sum of N Natural Numbers
Sum of Squares of Natural No.
Find Sum of Odd Numbers
Find the Sum of Series
Find Fibonacci series in C
Sum of the Fibonacci series
Sum until enters +ve numbers
Sum of max 10 no. & Skip -ve
☕️ C Conversion Programs
Celsius to Fahrenheit
Fahrenheit to Celsius
Decimal ↔ Binary
Decimal ↔ Octal
Octal ↔ Binary in C
☕️ Number Programs in C
Prime Number in C
Strong Number in C
Krishnamurthy Number
Neon Number in C
Palindrome number
Perfect Number in C
Armstrong Number
☕️ Pattern Programs in C
Pattern programs in C
Printing pattern using loops
Floyd’s triangle Program
Pascal Triangle Program
Pyramid Star Pattern in C
Diamond Pattern Programs
Half Diamond pattern in C
Print Diamond Pattern
Hollow Diamond Pattern
Diamond Pattern of Numbers

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