having problem on getting TWO inputs

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?

Code:

---

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?

Code:

---

#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.

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

Code:

---


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?