C Program To Print Rhombus Star Pattern

                                      C Program

C Program To Print Rhombus  Star Pattern

Example 

#include <stdio.h>

int main()

{

    int i, j, rows;

 

    printf("Enter rows: ");

    scanf("%d", &rows);

    for(i=1; i<=rows; i++)

    {

   

        for(j=1; j<=rows - i; j++)

        {

            printf(" ");

        }

       

        for(j=1; j<=rows; j++)

        {

            printf("*");

        }

       

        printf("\n");

    }

    return 0;

}

C Program To Print Rhombus  Star Pattern

Explain Program

Step :1

#include <stdio.h>

  input/output library to printf() and scanf().

 Step :2

int main()

every C program. Execution starts  

Step :3

int i, j, rows;

Variable declarations:

 i: Loop variable for rows.

 j: Loop variable for spaces and stars.

rows: Number of rows for the rhombus

Step :4

printf("Enter rows: ");

scanf("%d", &rows);

user to input an integer (rows)

 The height of the rhombus.

Step :5

for(i = 1; i <= rows; i++)

Outer loop control the number of rows to be printed.

It runs from 1 to rows.

 iteration prints one row of the rhombus.

Step :6

for(j = 1; j <= rows - i; j++)

{

    printf(" ");

}

This inner loop prints spaces before the stars on each line.

 The number of spaces decreases as i increase

 For row 1: rows - 1 space

 For row 2: rows - 2 space

 Step :7

for(j = 1; j <= rows; j++)

{

    printf("*");

}

 loop prints a fixed number of stars: exactly rows stars on each line.

 Step :8

printf("\n");

 next line after printing . 

Program Exit:

return 0;

C Program To Print Rhombus  Star Pattern

 Program Output :- 

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C Program to Display Floyd’s Triangle Pyramid Pattern

C Program to Display Floyd’s Triangle Pyramid Pattern

Example 

#include<stdio.h>

int main()

{

int row,i,j,number=1;

clrscr();

printf("enter the number");

scanf("%D",&row);

for(i=1;i<=row;i++)

{

for(j=1;j<=i;j++)

{

printf("%d",number);

++number;

}

printf("\n");

}

getch();

return 0;

}

C Program to Display Floyd’s Triangle Pyramid Pattern

Explain Program

Step :1

#include <stdio.h>

• Standards Input/Output Library.

•  using printf() and scanf().

Step :2

int main()

•  entry point of the program.

Step :3

int row, i, j, number = 1;

Declares variables:-

• row :- User input for number of rows in Floyd's Triangle.
• i :- Loop variable for rows.
• j :- Loop variable for elements in each row.
• number :- Holds the current number to print; starts at 1.

Step :4

printf("Enter the number of row ");

•  input how many rows they want in the triangle.

Step :5

scanf("%d", &row);

•  user input and stores  variable row.

• format specifier for integers.

Step :6

for(i = 1; i <= row; i++)

•  number of rows in the triangle.

• Runs from 1 to row 

Step :7

for(j = 1; j <= i; j++)

• Control  the number of element  row.

• Each row i contains exactly i numbers.

Step :8

printf("%d ", number);

• Prints a space.

Step :9

printf("\n");

• next line after each row is printed

Step :10

return 0;

successful termination of the program

C Program To Print Floyd's Triangle Pyramids  Pattern

 Program Output :- 

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C Program to Display Pascal’s Triangle Using Loops

C Program

C Program to Display Pascal’s Triangle Using Loops

Example 

#include<stdio.h>

int main()

{

    int  row,coef=1,space,i,j;

    printf("enter the number");

    scanf("%d",&row);

    for (i=0;i<row;i++)

    {
    for(space=1;space<=row -i;space++)

    printf(" ");

    for(j=0;j<=i;j++)

    {

    if(j==0||i==0)

    coef =1;

    else

    coef=coef * (i-j+1)/j;

printf("%4d",coef);

    }

    printf("\n");

    }

return 0;

}

C Program to Display Pascal’s Triangle Using Loops

Explain Program

Step :1

#include <stdio.h>

•  standard input/output library for printf() and scanf() function

Step :2

int main()

• Starting point of the program.

Step :3

Variable Declarations

int row, coef = 1, space, i, j;

• row: Number of rows to print (user input).

• coef: Coefficient in Pascal’s Triangle, initialized to 1. It holds the binomial coefficient.

• space: Used to align the triangle by printing leading spaces.

• i: Outer loop counter (represents the current row).

• j: Inner loop counter (represents the position in the row).

Step :4

Input Prompt

printf("enter the number");

scanf("%d", &row);

•  rows of Pascal's Triangle they want to display

Step :5

Outer Loop: Iterates through rows

for (i = 0; i < row; i++)

• i  from 0 to row - 1 (0-based index).

• Each iteration corresponds to one row of Pascal’s Triangle.

Step :6

Printing Leading Spaces

for (space = 1; space <= row - i; space++)

    printf(" ");

• Aligns the triangle by printing spaces before numbers.

• As i increases, fewer spaces are printed.

Makes the triangle centered

Step :7

Inner Loop: Calculates and Prints Coefficients

for (j = 0; j <= i; j++)

• Print  value  the current row (row i has i+1 value).

Step :8

if (j == 0 || i == 0)

    coef = 1;

else

    coef = coef * (i - j + 1) / j;

• This is an efficient iterative formula to calculate binomial coefficients without using factorials:

Step :9

printf("%4d", coef);

• %4d ensures that each number takes at least 4 spaces, which helps align the triangle neatly.

Step :10

printf("\n");

•  starts the next one.

return 0

C Program to Display Pascal’s Triangle Using Loops

 Program Output :- 

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C Program to Print Full Pyramid of star pattern

C Program 

C Program  to Print Full Pyramid of star pattern

Example 

#include<stdio.h>
void main ()
{
int i,space,r,k=0;
   
printf("enter the number");
scanf("%d",&r);
for(i=1;i<=r;i++,k=0)
{
for(space=1;space<=r-i;space++)
{
printf(" ");
}
while(k !=2*i-1){
printf("*");
++k;
}
printf("\n");
}
return 0;
}

C Program  to Print Full Pyramid of star pattern

Explain Program

Step :1

#include <stdio.h>

• Standard Input Output header file.

• using printf() and scanf() functions.

Step :2

void main()

• The program execution starts 

Step :3

Variable Declarations

int i, space, r, k = 0;

• i: loop counter for rows.

• space: counter for printing leading spaces in each row.

• r: number of rows in the pyramid (user input).

k: used to control the number of asterisks (*) printed in each row

Step :4

printf("enter the number");

scanf("%d", &r);

•  enter how many rows they want in the pyramid.

Step :5

for(i = 1; i <= r; i++, k = 0)

• Runs from i = 1 to r

•  iteration correspond to one row of the pyramid.

• k = 0 resets the asterisk counter for each row.

Step :6

Inner Loop 1: Printing Leading Spaces

for(space = 1; space <= r - i; space++)

{

    printf(" ");

}

• This prints leading spaces before the stars in each row.

•  row number (i) increases, the number of spaces decreases.

• centers the pyramid.

Step :7

. Inner Loop 2: Printing Stars

while(k != 2 * i - 1)

{

    printf("*");

    ++k;

}

•  print the asterisks (*) in each row.

•  number of stars increases by 2 with each row.

• The formula 2 * i - 1 gives an odd number of stars (1, 3, 5, ...), forming a full pyramid.

Step :8

printf("\n");

• After printing spaces and stars for a row, it moves the cursor to the next line.

Step :9

return 0;

C Program  to Print Full Pyramid of star pattern

 Program Output :- 

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C Program to Print Inverted half Pyramid of Number

C Program to Print Inverted half Pyramid  of Number

Example 

#include<stdio.h>

void main ()

{

int i,j,r;

printf("enter the number");

scanf("%d",&r);

for(i=r;i>=1;i--)

{

for(  j=1;j<=i;j++)

{

printf("%d",j);

}

printf("\n");

}

return 0;

}

C Program to Print Inverted half Pyramid  of Number

Explain Program

Step :1

#include <stdio.h>

 standard input/output library.

Step :2

void main()

 main function where the program starts.

Step :3

Variable Declarations

int i, j, r;

r: The number of rows (user input).

i: Controls the outer loop (rows).

 j: Controls the inner loop (columns/numbers per row).

Step :4

printf("enter the number");

scanf("%d", &r);

 user to enter an integer value r

 the number of rows in the pattern

Step :5

Outer Loop (Row Control)

for(i = r;  i >= 1;  i--)

Start  from i = r and decrements down to 1.

Each iteration represent one row in the output.

 number of values printed in a row equals i.

Step :6

for(j = 1; j <= i; j++)

{

    printf("%d", j);

}

each row, this loop prints numbers starting from 1 up to i.

Step :7

printf("\n");

row move the cursor to the next line.

Step :8

return 0;

C Program to Print Inverted half Pyramid  of Number

 Program Output :- 

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