My while statement is not functioning properly. Please explain why. It doesnt wait for taking my input for char rep.?

Question

#include <stdio.h>
using namespace std;
char rep;
int main()
{ while (rep!='n') {
printf ("the loop is on\n Do you want to repeat? y/n \n");
scanf("%n", &rep);
}
}

it doesnt wait for taking my input into rep, the code repeats automatically. why?

Answer 1

so what should i write instead?

Answer 2

so what should i write instead?

Answer 3

%n bro ...its character scanf mai dekh

Answer 4

%c instead %n ...char:%c