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c program to find out generic root of a number?

+3 votes
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c program to find out generic root of a number?
posted Jun 4, 2015 by Mohammed Hussain

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1 Answer

+1 vote
 
Best answer
#include<stdio.h>
int main(){

  long int num,sum,r;
  printf("\nEnter a number:-");
  scanf("%ld",&num);

  while(num>10){
    sum=0;
    while(num){
      r=num%10;
      num=num/10;
      sum+=r;
    }
    if(sum>10)
      num=sum;
    else
      break;
  }
  printf("\nSum of the digits in single digit is: %ld",sum);
  return 0;
}

Sample output:

Enter any number: 731
Generic root: 2

Meaning of generic root:

It sum of digits of a number unit we don't get a single digit. For example:
Generic root of 456: 4 + 5 + 6 = 15 since 15 is two digit numbers so 1 + 5 = 6
So, generic root of 456 = 6

answer Jun 9, 2015 by Manikandan J
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