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You can print something like "Press any key to continue..." before that. Some people will tell you about

system("pause");
But don't use it. It's not portable.
                Note that while cin.get() is supposed to read a single character it's probable that your terminal does line buffering so that you will have to press enter before the call to get() returns.
– Alex Jasmin
                Dec 3, 2010 at 8:54
                Behavior of  those two samples doesn't behave the same, cin.get() waits for ENTER, and system("pause") returns immediately once user presses ANY key.
– SoLaR
                Jun 6, 2021 at 14:30
The function waits for a single keypress and returns its (integer) value.
For example, I have a function that does the same as System("pause"), but without requiring that "pause.exe" (which is a potential security whole, btw):
void pause()
  std::cout << std::endl << "Press any key to continue...";
  getchar();
                Well, I was under the impression that the command pause resulted in running a whole process which is basically the program "pause". For example, system("notepad") (on windows) starts notepad, so this command definitely can launch other executables.
– Mephane
                Dec 8, 2010 at 11:52
                The C++ standard library is incorporated in the ANSI/C++ ISO Language standard and contains std::cin of class istream. This is cross-platform and not "nothing".
– Abel
                Apr 8, 2012 at 15:27
The incorrect solution would be to use system("pause") as this creates security holes (malicious pause.exe in directory!) and is not cross-platform (pause only exists on Windows/DOS). 
There is a simpler solution:
void myPause() {
    printf("Press any key to continue . . .");
    getchar();
This uses getchar(), which is POSIX compliant (see this).
You can use this function like this:
int main() {
    myPause();
This effectively prevents the console from flashing and then exiting.
        
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