Program in c++ to find sum of all prime elements of array

Program in c++ to find sum of all prime elements of array

//https://clanguage0.blogspot.com
#include<stdio.h>
#include<conio.h>
  int PrimeSum(int *a,int n)
   {
    int p=1,j,sum=0,i;
    for(i=0;i<n;i++)
      {
          for(p=1,j=2;j<=a[i]/2;j++)
          {
              if(a[i]%j==0)
              {
                  p=0;
                  break;
              }
          }
          if(p==1)
            sum+=a[i];
      } 
      return sum;
   }
 int main()
  {
      int a[100],n,i;
      printf("Enter sizee of array:-");
      scanf("%d",&n);
      if(n>100)
        {
         printf("Invalid array size.");
         return 0;
  }
   printf("Enter %d numbers:-",n);
   for(i=0;i<n;i++)
     {
   scanf("%d",&a[i]);
  }
   printf("\nSum of the all prime elements of the given array =%d",PrimeSum(a,n));
    getch();
  }

Output :-