Work with array,no functions

#include <stdio.h>
#include <math.h>
#define SIZE 50
//is it appropriate to use this style? maybe not in main, but in some major function, which does few different zadacha
int main()
{
    int i,j,start,finish,temp,flag,arr[SIZE],multipl,rest ,zero_count,count=0;
    multipl=1;zero_count = j = 0;
    int arr3[SIZE]={76,809,395,333,66,2323,999,22,10,0,76,809,395,333,66,2323,999,22,10,0,76,809,395,333,66,2323,999,22,10,0,76,809,395,333,66,2323,999,22,10,0,76,809,395,333,66,2323,999,22,10,0};
    for(i=0;i<SIZE;i++)arr[i]=rand()%5;//populate array
    for(i=0;i<SIZE;i++)printf("%d\t",arr[i]);//print array
    for(i=0;i<SIZE;i++)if(arr[i]==0){start=i;break;}//find start
    for(i=start+1;i<SIZE;i++)if(arr[i]==0){finish=i;break;}//find finish
    for(i=start+1;i<finish;i++){count++;multipl*=arr[i];}//calculate multiplication
    //of all elements between first and second zeros, and count those elms
    for(i=0;i<SIZE;i++)if(arr[i]==0)zero_count++;

    int arr2[zero_count];
    for(i=0;i<SIZE;i++)if(arr[i]==0)arr2[j++]=i;//populate arr2 with indexes of zero els
    for(j=0;j<zero_count;j++)printf("%d\t",arr2[j]);//print array

    for(i=0;i<SIZE;i++)
    {temp=arr3[i];flag =1;rest=temp%10;
        while(temp/10)    //check if temp consists of the same digits 333,66...
        {
            temp/=10;
            if(temp%10!=rest)
                {flag=0;break;}
        }
        if(flag)
            printf("%d are great!\n",arr3[i]);
    }
//printf("\nstart %d finish %d count %d multipl %d\n",start,finish,count,multipl);

    return 0;
}