a2

#include <stdio.h>
#include <ctype.h>
#include <string.h>

int main() // main function
{
		const int measurement = 100;
		char num[50];
		char option;


			getchar(num, measurement);
			displaychar(num, measurement);


		do
	{

		printf(" Enter another value? Type Y to enter or type N to exit/n : " );
		scanf( "%c%*c", &option);
		option=tolower(option);

		switch (option)
		{
			case 'y' : getchar(num,measurement);
							displaychar(num, measurement);
							break;

								case 'n': printf(" Good Bye have a nice day \n");
								break;

									default: printf(" invalid selection \n");
		}

		} while(option!='n');
		  getchar();

		 return(0);
		 }