C++ Program to Find Sum of Digits of a Number – C++ Program

C++ Program to Find the Sum of Digits of a Number – C++ Program.

Flowchart of Sum of Digits of a Number – C++

C++ Source Code of Program

#include<iostream>
using namespace std;
int main()
{
	int num,i,k=9;
	int sum=0;
	cout<<"Please Enter a number:";
	cin>>num;
	i=1;
	do
	{
		sum=sum+k;
		k=k*10+9;
		i++;
	}
while(i<=num);
cout<<"The sum of series="<<sum;
}

#include<iostream>

using namespace std;

int main()

{

int num,i,k=9;

int sum=0;

cout<<"Please Enter a number:";

cin>>num;

i=1;

{

sum=sum+k;

k=k*10+9;

i++;

}

while(i<=num);

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

}

Output

Please Enter a number: 5

The sum of series = 111105

Exercise

Find the possible mistakes in the following Shamil’s Flow Table of the Program to Find the Sum of Digits of a Number – C++ Program.

Loop

condition

What lines will execute

Actual work to do

i=1

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16

sum=sum +k;

9=0+9

K=k*10+9;

99=9*10+9

1 time

i=2

True

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,

10,11,12,13,14,15,16

sum=sum +k;

108=9+99

K=k*10+9;

999=99*10+9

2 times

i=3

True

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,

10,11,12,13,14,15,16,10,11,12,13,14,15,16

sum=sum +k;

1107=108+999

K=k*10+9;

9999=999*10+9

3 time

i=4

False

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,

10,11,12,13,14,15,16,10,11,12,13,14,15,16,17,18

“sum of series”

C++ Program to Find Sum of Digits of a Number – C++ Program
By: Prof. Dr. Fazal Rehman | Last updated: October 21, 2023

Flowchart of Sum of Digits of a Number – C++

C++ Source Code of Program

Exercise

Related Posts:

Leave a Comment