Posts by Maritimo

Yes, it is perfectly possible to solve that problem in C++.

The memory is measured in bytes.
1k bytes are 1024 bytes (not 1000 bytes). This is because the memory space is expresed in powers of two:

2^0=1
2^1=2
2^2=4
2^3=8
2^4=16
2^5=32
2^6=64
2^7=128
2^8=256
2^9=512
2^10=1024 <--- This is why 1k of memory has 1024 bytes.
2^11=2048
2^12=4096 <--- In your problem, one page of memory is 4k with 4096 bytes.

1kB = 1024 bytes
1MB = 1k x 1k memory = 1024x1024 = 1048576 bytes.
1GB 0 1M x 1k = 1k x 1k x 1k = 1024x1024x1024 = 1073741824 bytes

In the rest (of your live):
"k" means 1024
"M" means 1024 x 1024 = 1048576
"G" means 1024 x 1024 x 1024 = 1073741824

4kB = 4x1024 = 4096 bytes is one page of memory.

2^32 has 4294967296 bytes is your total space for your table.

2^32/1024 = 4194304 k bytes = 4194304x1024.
2^32/1024/1024 = 4096 M bytes = 4096x1024x1024.
2^32/1024/1024/1024 = 4GB = 4 x 1024 x 1024 x 1024.

That is: you have 4GB of total space memory. (The question is wrong because it says 4MB and must say 4GB).

2^32/1024/4 = 2^32/4096 = 1048576 pages of memory.

2^20 = 1048576. That is, you have 2^20 pages of memory.

2^20 = 1048576 = 1024x1024. That is you have 1024 k pages of memory.

You have 1M pages of memory and each page has 4k …

I don't think this web is to teach how to crack a programm. Anyway, if you want to crack a code, you need to know a lot that seems you don't. So I recomend don't try to solve this here, you must study a lot. Your first step shuld be to learn assembler.

I recomend you to use switch...case clause:

for(int i=1; i<=12; i++)
{
   cout << i << ' ',
   switch(i)
   {
     case 1: cout << "My first message\n"; break;
     case 2: cout << "My second\n"; break;
     //...
   }
}

I recomend you to learn C++11 directly. Learning C is the long way to C++98 to C++03 to C++11 and do not have any benefit. As a matter of fact, the style of programming and the way of think has evolved a lot. With C++11 there are many things you must forget from C++03 from C++98 form C. So jump directly to the best.

Note: There are a just new version called C++14 but it is only a very minor upgrade from C++11.

Definitivelly the most powerfull language of all times is...

English.

The most powerfull computer is an...

Engineer.

Explain your problem to an Engineer in English, and he/she will solve it!

Easy, isn't it?