Q21

#include <stdio.h>

int main()
{
 int array123 [100];
    long int N,i;
    long long int prod;
    scanf("%li",&N);
    long int a[N];
    long int big,bigger,biggest,temp;
    for(i=0;i<N;i++)
    {
    scanf("%li",&a[i]);
    }
    printf("-1\n-1\n");
    big=a[0];
    bigger=a[1];
    if(a[0]>bigger)
    {
    bigger=a[0];
    big=a[1];
    }
    biggest=a[2];
    if(biggest<bigger && biggest>=big)
    {
    temp=bigger;
    bigger=biggest;
    biggest=temp;
    }
    if(biggest<big)
    {
    temp=big;
    big=biggest;
    biggest=bigger;
    bigger=temp;
    }
    prod=big*bigger*biggest;
    printf("%lli\n",prod);
    for(i=3;i<N;i++)
    {
if(a[i]>biggest)
{
big=bigger;
bigger=biggest;
biggest=a[i];
}
else if(a[i]>bigger)
{
big=bigger;
bigger=a[i];
}
else if(a[i]>big)
{
big=a[i];
}
prod=big*bigger*biggest;
printf("%lli\n",prod);
    }
    return 0;
}