Program to print half pyramid a using numbers

1

1 2

1 2 3

1 2 3 4

1 2 3 4 5

#include
#includeonio.h>
void main()
{
    int i, j, rows;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=1; i<=rows; i++)
    {
        for(j=1; j<=i; j++)
        {
            printf("%d ",j);
        }
        printf("\n");
    }
    getch();
}

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OUTPUT : -

Print Triangle Shape in C like this..

               *

               ***

               *****

               ******

               *********


#include
#include
void main()
{
    int i,j,k,n=6;
    for(i=0;i    {
        for(j=0;j        {
            printf("*");
        }
        printf("\n");
    }
getch();
}
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OUTPUT : -

 

Print Reverse Triangle shape in C like this..

               ********

               ******

               ***

               **

               *
 #include
#include
void main()
{
    int i,j,k,n=6;
    for(i=0;i    {
        for(j=n;j>i;j--)
        {
            printf("*");
        }
        printf("\n");
    }
getch();
}
--------------------------------------------------------------------------------------------------------------------------------
OUTPUT :-

Print Square Shape in C like this..

                    *******

                    *******

                    *******

                    *******

#include
#include
void main()
{
    int i,j,k,n=6;
    for(i=0;i    {
        for(j=0;j        {
            printf("*");
        }
        printf("\n");
    }
getch();
}
-----------------------------------------------------------------------------
OUTPUT :-

C Program to Check Armstrong Number of N digits

Armstrong Number : In case of an Armstrong number of 3 digits, the sum of cubes of each digits is equal to the number itself. 

For example:

             153 = 1*1*1 + 5*5*5 + 3*3*3  // 153 is an Armstrong number.

#include
#include
#include
int main()
{
    int number, originalNumber, remainder, result = 0, n = 0 ;
    printf("Enter an integer: ");
    scanf("%d", &number);
     originalNumber = number;
// here originalnumber and number are equal to each other
    while (originalNumber != 0)
    {
        originalNumber /= 10;
        ++n;
    }
    originalNumber = number;
    while (originalNumber != 0)
    {
        remainder = originalNumber%10;
        result += pow(remainder, n);
        originalNumber /= 10;
    }
    if(result == number)
        printf("%d is an Armstrong number.", number);
    else
        printf("%d is not an Armstrong number.", number);

    getch();
}
---------------------------------------------------------------------------
OUTPUT :

C Program to check number is polindrome or not

Palindrome Number : An integer is a palindrome if the reverse of that number is equal to the original number.
 
#include
int main()
{
    int n, reversedInteger = 0, remainder, originalInteger;
    printf("Enter an integer: ");
    scanf("%d", &n);
    originalInteger = n;
    // reversed integer is stored in variable
    while( n!=0 )
    {
        remainder = n%10;
        reversedInteger = reversedInteger*10 + remainder;
        n /= 10;
    }
    // palindrome if orignalInteger and reversedInteger are equal
    if (originalInteger == reversedInteger)
        printf("%d is a palindrome.", originalInteger);
    else
        printf("%d is not a palindrome.", originalInteger);

    getch();
}
------------------------------------------------------------------------------
OUTPUT :

 

C Program to Check Whether a Number is Prime or Not

Prime Number : A prime number is a positive integer which is divisible only by 1 and itself. For example: 2, 3, 5, 7, 11, 13

#include
int main()
{
    int n, i, temp = 0;

    printf("Enter a positive integer: ");
    scanf("%d",&n);

    for(i=2; i<=n/2; ++i)
    {
        // condition for non prime number
        if(n%i==0)
        {
            temp=1;
            break;
        }
    }

    if (temp==0)
        printf("%d is a prime number.",n);
    else
        printf("%d is not a prime number.",n);

    getch();
}

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  OUTPUT :-

Accept a Number from user and print its equivalent Binary Number

#include
#include
void main()
{
    int n,i,temp=1;
    printf("Enter the Number = ");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
       if(n%i==0)
       {
           printf("%d\n",i);
       }
    }
getch();
}
-----------------------------------------------------------------------------
OUTPUT :

Accept a Number from user and print its equivalent Binary Number

#include
#include
void main()
{
    int n,a,i,temp=1;
    printf("Enter the Number = ");
    scanf("%d",&n);
    printf("Binary Number is = ");
    for(i=n;i>=0;i--)
    {
       while(n!=0)
       {
        a=n%2;
        n=n/2;
        printf("%d",a);
       }
    }
getch();
}
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OUTPUT :