Write a program to display digit of a five-digit no

 Write a program to receive a five-digit no and display as like 24689:

2

4

6

8

9

Program in C Language

#include<stdio.h>

#include<conio.h>

#include <math.h>

void main()

{

      int num,i;

    printf ("Input a five digit number: ");

    scanf ("%d", &num);

    for (i = 4; num > 0; i--)

    {

        printf ("%d", num / (int)pow (10, i));

        num = num % (int) pow (10, i);

        printf ("\n");

    }

    getch();

}

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Write a program to draw the following figure:

3 2 1

21

1

*

**

***

Program in C Language

#include<stdio.h>
#include<conio.h>
void main()
{
     int i,j;
     for(i=3;i>=1;i--)
     {

           for(j=i;j>=1;j--)
          {
           printf("%d",j);
          }
          printf("\n");
     }
     for(i=1;i<=3;i++)
     {

           for(j=1;j<=i;j++)
          {
           printf("*");
          }
          printf("\n");
     }
getch();
}

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Write a function that return sum of all the odd digits of a given positive no entered through keyboard

#include<stdio.h>

#include<conio.h>

int sumodd(int num)

{

     int sum=0,i;

     for(i=0;i<=num;i++)

     {

          if(i%2!=0)

          {

               sum=sum+i;

               printf("%d,",i);

          }

     }

     return sum;

}

void main()

{

 int n,sum;

printf("enter a number\n");

scanf("%d",&n);

sum=sumodd(n);

printf("\n sum of odd number is %d",sum);

getch();

}

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 Write a program to find sum of Fibonacci series using function.

#include<conio.h>

#include<stdio.h>

int sumfab(int num)

{

     int a=1,b=1,sum=2,i,c;

     printf("%d,%d,",a,b);

     for(i=3;i<=num;i++)

     {

          c=a+b;

          sum=sum+c;

          a=b;

          b=c;

          printf("%d,",c);

     }

     return sum;

}

void main()

{

     int n,sum;

     printf("enter a number \n");

     scanf("%d",&n);

     sum=sumfab(n);

     printf("the sum is %d",sum);

     getch();

}

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 Write a program to calculate the factorial for given number using function.

Factorial for given number without using function

#include<stdio.h>

#include<conio.h>

void main()

{

     int i,n;

     int fact=1;

     printf("enter the number\n");

     scanf("%d",&n);

     for(i=n;i>=1;i--)

     {

          fact=fact*i;

     }

     printf("%d",fact);

}

Factorial for given number using function

#include<stdio.h>

#include<conio.h>

int fact(int num)

{

     int f=1,i;

     for(i=1;i<=num;i++)

     {

          f=f*i;

     }

     return f;

}

void main()

{

     int fa,n;

     printf("\n enter the number \n");

     scanf("%d",&n);

     fa=fact(n);

     printf("\n Factorial of number%d is %d",n,fa);

     getch();

}

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Write a program to print the entire prime no between 1 and 300. 

Program in C language

#include<stdio.h>

#include<conio.h>

int IsPrime(int num)

{

     int i,b=1;

     for(i=2;i<num;i++)

     {

          if(num%i==0)

          {

               b=0;

               break;

          }

     }

     return b;

}

void main()

{

int i;

for(i=2;i<=100;i++)

{

 if(IsPrime(i))

{

     printf("%d\n",i);

}

}

}

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Write a program to generate sum of series 1!+2!+3!+--------------n!

In order generate sum of series 1!+2!+3!+--------------n! there is need to take help of function that can able to calculate the factorial of any number 

Program in C language

#include<stdio.h>

#include<conio.h>

int fact(int n)

{

     if(n==1)

          return 1;

     else

          return n*fact(n-1);

}

void main()

{

     int n,factorial,sum=0,i;

     printf("enter a number \n");

     scanf("%d",&n);

     for(i=1;i<=n;i++)

     {

        factorial=fact(i);

        sum=sum+factorial;

     }

     printf("Sum of the given series is %d",sum);

     getch();

}

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Write a program to print out all the Armstrong number between 100 and 500.

Program in C Language

#include<stdio.h>

#include<conio.h>
int checkams(int num);
void main()
{
     int i;
     for(i=100;i<=500;i++)
     {
          if(checkams(i))
          {
               printf("%d\n",i);
          }
     }
     getch();
}


int checkams(int num)
{

   int digit,sum=0,temp;
  // printf("enter an number\n");
  // scanf("%d",&num);
   temp=num;
   while(num!=0)
   {
        digit=num%10;
        num=num/10;
        sum=sum+digit*digit*digit;
   }
   if(sum==temp)
   {
        return 1;
   }
   else
   {
        return 0;
   }

}

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 Write a program to find the largest of three numbers using nested if else.

INDEX

• Introduction to problem
• Algorithm 
• Flowchart
• Program in C language
• Output

Introduction to Program

In this problem statement, we have three number and out of these three number we have to find, which is bigger or largest. this can be achieve by comparing these three number with each other.

Algorithm

Step1: declare three variable named A, B and C

Step2: Read the value of A, B and C from user

Step3: if A>B then

                if A > C then

                print A is greater

                   otherwise

                print C is greater

            otherwise

                 if B > C then

                print B is greater

                   otherwise

                print C is greater

Step4: Exit

Flow chart

Program in C language

#include<stdio.h>
#include<conio.h>
void main()
{
     int num1,num2,num3;
     printf("enter any three number\n");
     scanf("%d %d %d",&num1,&num2,&num3);
     if(num1>num2)
     {
          if(num1>num3)
          {
            printf("%d is greater than %d ,%d",num1,num2,num3);
          }
          else
          {
            printf("%d is greater than %d ,%d",num3,num1,num2);
          }
     }
     else
     {
         if(num2>num3)
         {
             printf("%d is greater than %d ,%d",num2,num1,num3);
         }
         else
         {
             printf("%d is greater than %d ,%d",num3,num1,num2);
         }
     }
}

OutPut

enter any three number

23 

3

24

24 is greater than 23, 3

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Write a program in C to find whether the number is Armstrong number.

 Write a program to find whether the number is Armstrong number

Index

• Introduction
• Algorithm of Problem 
• Flow Chart 
• Program in C 
• Out Put

Introduction 

Armstrong number is the number whose digits cube is sum together we get the same number ex 370 in this number we have three digits 3 , 7 , 0, if we calculate the cube of each digit cube of 3 is 27, similarly cube of 7 is 343 and 0 is 0. if we add the resulted value 343+27+0=370 as answer is same as number so number is Armstrong number.

Algorithm of solving given problem

Step 1: Declare three variable digit, sum , num  

Step 2: Take  a number as input from user

Step 3: initialize the value of sum = 0 and set temp = num

Step 4: Repeat step 5 to 7  until num !=0

Step 5: Set digit = num %10;

Step 6: Set num=num / 10;

Step 7: Set sum=sum + digit * digit * digit.

Step 8: If sum == temp than

           print number is arm strong

           otherwise

           print number is not arm strong 

Step 9: Exit

Flow Chart

Flow chart 

Program in C language

#include<stdio.h>

#include<conio.h>

void main()

{

int digit,sum=0,temp,num;

  printf("enter an number\n");

  scanf("%d",&num);

   temp=num;

   while(num!=0)

   {

        digit=num%10;

        num=num/10;

        sum=sum+digit*digit*digit;

   }

   if(sum==temp)

   {

       printf("number is Armstrong");

   }

   else

   {

        printf("number is not Armstrong");

   }

}

OUTPUT

enter an number

370

number is Armstrong

enter an number

370

number is not Armstrong

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Write a Program in C to calculate the Net Salary if basic salary is given

Basic salary of an employee is input through the keyboard. The DA is 25% of the basic salary while the HRA is 15% of the basic salary. Provident Fund is deducted at the rate of 10% of the gross salary (BS+DA+HRA). Program to calculate the Net Salary.

Index

• Introduction to Problem
• Algorithm to solve the Problem
• Flow chart 
• Program in C language 
• Out Put

Introduction to Problem

Basic salary of an employee is input through the keyboard. The DA is 25% of the basic salary while the HRA is 15% of the basic salary. Provident Fund is deducted at the rate of 10% of the gross salary (BS+DA+HRA). Program to calculate the Net Salary.

as per the instruction calculate the gross salary there is need to calculate DA and HRA is need to be calculated. after that Net Salary is calculated by deducting the PF from it.

Algorithm to solve the problem

Step 1: Take Basic salary as a Input from the user.

Step 2: then calculate the DA of basic salary using below formula 

 DA = (Basic salary * 25)/100

Step 3: then calculate the HRA of basic salary using below formula

HRA= (Basic salary * 15) / 100

Step 4: then we are going to calculate Gross Salary using below formula

            GS = BS + DA + HRA

Step 5: after that Provident fund is deducted using below formula

             Net Salary=GS - (GS*10)/100;

Step 6: Print the value of Net Salary

Step 7: Exit

Flow Chart

Program in C language 

#include<stdio.h>

#include<conio.h>

void main()

{

     double BS;

     double DA,HRA,GS,NS,PF;

     printf("Enter yours salary\n");

     scanf("%lf",&BS);

     DA= (BS * 25)/100;

     HRA= (BS * 15)/100;

     GS= BS+DA+HAR;

     PF= (GS * 10)/100;

     NS=GS-PF;

     Print("Yours Net Salary is %lf",NS);

     getch();

} 

            Out put

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 Write a program to calculate the area of triangle using formula at=√s(sa)(s-b)(s-c)

Index 

• Introduction 
• Algorithm of give Problem 
• Flow Chart
• Program in C language 
• Out put 

Introduction 

In this Problem Statement we have to calculate the area of triangle using Heron’s Formula

at=√s(s-a)(s-b)(s-c)

where a, b , c are the side of triangle

S =(a+b+c)/2 it is semi Perimeter

There logic is that first of all we are going to take input from the user in order to calculate the value of area of triangle

so see the algorithm for above problem statement

Algorithm of give Problem

Input: Three side of triangle 

Output: Area of triangle using given formula

Step1: Take the side of triangle as input from user let a, b, s.

Step2: Now Calculate the value of S using below formula

            S =(a+b+c)/2

 Step3: Now calculate the value of area of triangle using below formula

          Area = sqrt(S * (S-a) * (S-b) * (S-c));

Note: in order to calculate Square Root we make use of Function Sqrt

from header file math.h

Step4: Print the value of Area

Step5: Exit.

Flow Chart

Program in C language

#include<stdio.h>

#include<conio.h>

#include<math.h>

void main()

{

     double a,b,c,at,temp,S;

     printf("Enter the size of side of triangle\n");

     scanf("%lf %lf %lf",&a,&b,&c);

     S=(a+b+c)/2;

     temp=S*(S-a)*(S-b)*(S-c);

     at=sqrt(temp);

     printf("Area of triangle is %3.2lf",at);

     getch();

}

Out Put

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