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Question

Look at the Comments in the Programm
https://code.sololearn.com/c9JkXUv68Fs6/#cpp

Answer 1

You could use "cin.get()" but make sure that the buffer is empty.
https://code.sololearn.com/c9ifYeqtwa8Q/?ref=app

Answer 2

You could look into stdio.h and getchar() from the c Standart Library