having problem on getting TWO inputs

[probug]

frens, i am new to c programming and am having problem how to handle two inputs seperately by scanf() or getchar().

I mean, I want to get Y or N first time, and then, i again, i want know whether the value is h ( high) or l (low) if the answer is N.

do you any idea?

while((response=getchar())!='y')
{
    printf("h or l");
    getchar(ch);
    if(ch=='h')
           do something;
    else
         do something;
    printf("Y or N");
}

Am i missing something here?

[mariocatch]

#include <iostream>
using namespace std;

int main()
{
	
	char ch;
	char response;
	do
	{
		system("cls");
		printf("You may quit at anytime by entering 'Y'\n");
		
		printf("Select h or l (y to quit): _\b");
		ch = getchar();
		tolower(ch);
		if(ch == 'l')
			printf("You've selected 'l'\n");
		else if(ch == 'h')
			printf("You've selected 'h'\n");
		else if(ch == 'y')
		{
			system("cls");
			printf("Quitting\n\n");
			break;
		}

		getchar();
		printf("\n");
		printf("Would you like to quit?\n");
		printf("(Y)es or (N)o: _\b");
		response = getchar();
		tolower(response);
		if(response == 'y') 
		{
			system("cls");
			printf("Quitting\n\n");
			break;
		}
		
		printf("Press enter/return to continue\n");

	}while((response=getchar())!='y');

	return 0; 
}

do while loop works better in your scenario.

[probug]

what i am trying to guess the number you've imagined between 1 ~ 100 in binary search way.

int main(void)
{
	int guess=50;
	char response;

	printf("Pick a number between 1~100.\n ");
	printf("I will guess then. Type y for if matched, n otherwise.\n");	

	printf("Is your number %3d? ",guess);

	while((response=getchar())!='y')
                {
                     printf("Is the number high \"h\" or low \"l\" : ");
                    scanf("%c",&ch);
                    if(ch=='h')
                                guess/=2;
                    else if(ch=='l')
                        guess=(guess+100)/2;
                    else
                        printf("Wrong choice, h or l only");
                    printf("Well, then, is is %d?\n",guess);
                    while(getchar()!='\n');      // not sure, whether we need or not
                                  continue;
        }
        printf("I know I could do it.\n");

   return 0;
}

=============
OUTPUT
Pick a number between 1~100.
I will guess then. Type y for if matched, n otherwise.
Is your number 50? n
<b>
Is the number high "h" or low "l" : Wrong choice, h or l onlyWell, then, is is 5
0?</b>

I am having problem here, i just want to print "Is the number high or low". But it comes Wrong choice, h or I only welll...etc too. How can I correct?