How to search faster in c++?

[ZimCa]

Here is my code :

#include <iostream>
#include <windows.h>

using namespace std;

int main()
{
for(int n = 0;n <= 500000;n+=4) // from 0 to 500000 4 bytes
{
system("cls");
cout << n << hex << endl; // print memory addres of n(int)
}
system("cls");
cout << "finish" << endl;
system("pause");
return 0;
}

When run program wait a long time to finish

[Peter87]

Not sure what you want the program to do.

You could make the program output "finish" much quicker by simply removing the loop.

[ZimCa]

I wont to make memory address Search(like Cheat Engine) this is not full code but this take Long time to finish

[Thomas1965]

It will be faster when you remove system("cls"); inside the for loop.

[ZimCa]

Ty,maybe more way :D

[SamuelAdams]

It's slow because it's printing to the screen

Remove these lines and it will finish very fast.

system("cls");
cout << n << hex << endl; // print memory addres of n(int) 

[dhayden]

system() runs a separate program. It has to find the program, allocate memory for it, load the program into the memory, run it, and then free up the memory. That's really expensive. If I reduce to loop count to 5,000, the program takes 22 seconds to run.

Changing system("cls") to instead print out the escape sequence to clear the screen (ESC [2J) the runtime drops to 19ms.

#include <iostream>
#include <windows.h>

using namespace std;

int
main()
{
    const char esc = 27;
    for (int n = 0; n <= 5000; n += 4)   // from 0 to 500000 4 bytes
    {
        // system("clear");
        cout << esc << "[2J";
        cout << n << hex << endl;                // print memory addres of n(in\
t)
    }
    cout << esc << "[2J";
    // system("clear");
    cout << "finish" << endl;
    return 0;
}