FIND SUM OF DIGITS OF A NUMBER USING RECURSION USING C PROGRAM
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12 comments:
write a program to add the following
¼+2/4+3/4+5/3+6/3+………
You should declare function int findsum(int) and line 18 (else) shouldn't be included, because the output is incorrect...here is the right source code:
#include
int findsum(int);
int main(){
int num,x;
printf("\nEnter a number: ");
scanf("%d",&num);
x=findsum(num);
printf("Sum of the digits of %d is: %d",num, x);
return 0;
}
int r, s;
int findsum(int n){
if(n){
r=n%10;
s=s+r;
findsum(n/10);
}
return s;
}
s should be initialized with 0
No need as it is global so already initialized with 0.
initialize with zero
ya u r right...
The variable s treats as a external variable.the default value of s is automatically initialized to 0.
what's the meaning of if (n) ??
how will you find the sum of the digits of the resulting sum of digits if it is more than 10?
int sum = 0;
if (num < 10)
return num;
else
{
sum = num % 10;
num = num / 10;
num = num + sum;
return Add_Digits(num);
}
its global variable
its initialize with 0 by default
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