C Program to find the sum of digits and reverse of a number with Algorithm

11-07-2020
C, Programing

This is the C program code and algorithm for finding the sum of digits and reverse of a number.

Aim:

Write a C program to find the sum of digits and the reverse of a number.

Algorithm:

Step 1: Start
Step 2: Read number num
Step 3: Set sum=0 and rev=0
Step 4: Repeat step 5 to 8 while num
Step 5: Set d=num mod 10
Step 6: Set num=num/10
Step 7: Set sum=sum+d
Step 8: Set rev=rev*10+d
Step 9: Print sum
Step 10: Print rev
Step 11: Stop

Program code

#include<stdio.h>
#include<conio.h>

void main( )
{
clrscr( )
 int num,sum=0,rev=0,d;
 printf("Enter the number: ");
 scanf("%d",&n);

while(num){
  d=num%10;
  num=num/10;
  sum=sum+d;
  rev=rev*10+d;
}

printf("Sumof digits = %d",sum);
printf("\nReverse of the number = %d",rev);
getch( );
}

Output

Enter the number : 123

Sum of digits = 6

Reverse of the number = 321

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