First of all we all should know what is sum of digits of a number?
Sum of digits of a number is defined as the sum of all the digits present in that number.
Example: 145, 1+4+5=10
PROGRAM
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#include<stdio.h>
int getSum(int);
int main(){
int num,sum;
printf("Enter a number: ");
scanf("%d",&num);
sum = getSum(num);
printf("Sum of digits of number: %d",sum);
return 0;
}
int getSum(int num){
static int sum =0,r;
if(num!=0){
r=num%10;
sum=sum+r;
getSum(num/10);
}
return sum;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #include<stdio.h> int getSum(int); int main(){ int num,sum; printf("Enter a number: "); scanf("%d",&num); sum = getSum(num); printf("Sum of digits of number: %d",sum); return 0; } int getSum(int num){ static int sum =0,r; if(num!=0){ r=num%10; sum=sum+r; getSum(num/10); } return sum; } |
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