Equal Stacks

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <limits.h>
int main()
    {
    int n,m,o,sum=0,sum1=0,sum2=0,d1=0,d2=0,d3=0,h=0,i;
    scanf("%d %d %d",&n,&m,&o);
    int arr[n],arr1[m],arr2[o];
    for(i=0;i<n;i++)
    scanf("%d",&arr[i]),sum+=arr[i];
    for(i=0;i<m;i++)
    scanf("%d",&arr1[i]),sum1+=arr1[i];
    for(i=0;i<o;i++)
    scanf("%d",&arr2[i]),sum2+=arr2[i];
    
   while(1) {
        if(sum==0 || sum1==0 || sum2==0) {
            h = 0;
            break;
        }

        if(sum == sum1 && sum1 == sum2) {
            h = sum1;
            break;
        }
     if(sum>=sum1&&sum>=sum2)
        sum-=arr[d1++],h=sum;
     else if(sum1>=sum&&sum1>=sum2)
      sum1-=arr1[d2++],h=sum1;
   else 
     sum2-=arr2[d3++],h=sum2;
   }
    printf("%d",h);
    return 0;

}