[newbie] cant leave the program!

Code:

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#include<stdio.h>
#include<math.h>
#include<time.h>
#include<stdlib.h>


int fnCompare(int luckyNum,int inNum)
    {
    int i;
    if ((inNum <1) || (inNum > 100))
    {i =1;}
    else if (luckyNum > inNum)
    {i =2;}
    else if (luckyNum < inNum)
    {i =3;}
    else 
    {i =4;}
    return(i);
}


int fnLuckyNum()
    {
    int value;
    srand(time(NULL));
    value= 1 + (int) rand()%100;
    return (value);
}


int main()
{
 
    int luckyNum,input,temp,count,bestScore;
    int boolean;
    char choice,enterKey;


   
   
    bestScore=100;
    choice='y';
    fflush(stdin);
    do
    {
    luckyNum=fnLuckyNum();
    count=1;
    {input =1;
      while ((input>0)&&(input<=100))
      {
          printf("\nGuess what is the lucky number< range 1 to 100>: ");
          scanf("%d",&input);
          printf("\n");
          temp=fnCompare(luckyNum,input);
          switch (temp)
          {
                case 1:
                      {printf("The program will be quit...");break;}
                case 2:
                      {printf("  Too small! Guess again < or -ve number to quit>.\n\n");count++;break;}
                case 3:
                      {printf("  Too large! Guess again < or -ve number to quit>.\n\n");count++;break;}
                case 4:
                      {printf("---Lucky! Right. The lucky number is <%d>. \n",luckyNum);
                      printf("---Number of attempts [%d]\n",count);
                      input=-1;
                      if (count<bestScore)
                        bestScore=count;
                      break;}
          }
      }
    }
    printf("\nBest Score so far <%d>.\n",bestScore);
    printf("\nPlay again? Type 'y' for YES [all other characters for No] : ");
    scanf("%c%c",&choice,&enterKey);
    printf("%c",choice);
    } while (choice != 'y'); 
    getchar();
    return 0;
}

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Ask Questions The Smart Way (click!) Or even the wrong way at this point, since you didn't actually ask anything...


Quzah.

First off, fflush(stdin) is undefined behavior. Secondly, you have many newlines still in the buffer after your while loop; read: How to get my program to wait for a keypress-FAQ. Pay particular attention to flushing the input stream.

Now, your implementation defined fflush() is in the wrong place for your loop based on what you want it to do.

Pay close attention to the spacing...

Code:

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    scanf(" %c",&choice);
    } while (toupper(choice) != 'Y'); 
    return 0;

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