Here are all the variables I use in my program
Var A,B : Byte;
    I,N : Longint;
    SUM : Array[1..1000000]of Byte;

And the limit is 1000K. Why do I get "Memory Limit
Exceeded"?????? Is the limit 10^6 Bytes?

> Here are all the variables I use in my program
> Var A,B : Byte;
>     I,N : Longint;
>     SUM : Array[1..1000000]of Byte;
>
> And the limit is 1000K. Why do I get "Memory Limit
> Exceeded"?????? Is the limit 10^6 Bytes?
No. It's really 1000K. The real problem is not to use 1MB
of memory. This solution exists.