Sum the digits in c

//program to find the sum of digits:

#include<stdio.h>
int main()
{
  int num,sum=0,r,temp;
  printf("Enter the number:\n ");  //taking input from the user
  scanf("%d",&num);
  
  temp=num;           //assigning num to temporary variable
  
  while(temp!=0)
  {
    r=temp%10;
    sum=sum+r;
    temp=temp/10;
  }
  printf("\nGiven number = %d",num);
  printf("\nSum of the digits = %d",sum);
}

Sum the digits in c

/* C Program to find Sum of Even and Odd Numbers in an Array */
#include<stdio.h>
int main()
{
 int Size, i, j = 0, a[10];
 int Even_Sum = 0, Odd_Sum = 0;
 
 printf("\n Please Enter the Size of an Array : ");
 scanf("%d", &Size);
 
 printf("\nPlease Enter the Array Elements\n");
 for(i = 0; i < Size; i++)
 {
      scanf("%d", &a[i]);
 } 
 while(j < Size)
 {
   if(a[j] % 2 == 0)
   {
 	Even_Sum = Even_Sum + a[j];
   }
   else
   {
 	Odd_Sum = Odd_Sum + a[j];
   }
   j++;
 }

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