Program to Find the sum of series 3+33+333.....+N

 Problem statement:- Program to Find the sum of series 3+33+333+3333.....+N.

 Data requirement:-

   Input Data:- n

  Output Data:-Sum

  Additional Data:- i, p

Program in C
  

Here is the source code of the C Program to Find the sum of series 3+33+333+3333.....+N.

Code:

#include<stdio.h>

int main()

{

    int n;

    int sum=0,i;

    printf("Enter the range of number:");

    scanf("%d",&n);

    int p=3;

    for(i=1;i<=n;i++)

    {

            sum+=p;

            p=(p*10)+3;

    }

    printf("The sum of the series = %d",sum);

}

Input/Output:

Enter the range of number:4

The sum of the series = 3702

Program in C++

Here is the source code of the C++ Program to Find the sum of series 3+33+333+3333.....+N.

Code:

#include<iostream>

using namespace std;

int main()

{

    int n;

    int sum=0,i;

    cout<<"Enter the range of number:";

    cin>>n;

    int p=3;

    for(i=1;i<=n;i++)

    {

            sum+=p;

            p=(p*10)+3;

    }

   cout<<"The sum of the series = "<<sum;

}

Input/Output:

Enter the range of number:8

The sum of the series = 37037034

Program in Java

Here is the source code of the Java Program to Find the sum of series 3+33+333+3333.....+N.

Code:

import java.util.Scanner;

public class Sum_Of_Series8 {

public static void main(String[] args) {

Scanner cs=new Scanner(System.in);

int n;

int sum=0,i;

     System.out.println("Enter the range of number:");

     n=cs.nextInt();

     int p=3;

     for(i=1;i<=n;i++)

     {

             sum+=p;

             p=(p*10)+3;

     }

     System.out.println("The sum of the series = "+sum);

     cs.close();

}

}

Input/Output:

Enter the range of number:

5

The sum of the series = 37035

Program in Python

Here is the source code of the Python Program to Find the sum of series 3+33+333+3333.....+N.

Code:

n=int(input("Enter the range of number:"))

sum=0

p=3

for i in range(1,n+1):

    sum += p

    p=(p*10)+3

print("The sum of the series = ",sum)

Input/Output:

Enter the range of number:10

The sum of the series =  3703703700

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