title: Yes/No Prompt in C?
body: <p>I'm using a Yes/No user prompt to determine whether the user wants to go through the program or exit the program...when you type y or Y it will go through the program again. However, any other character, not just n or N, will discontinue the program. I was wondering how I could fix this?</p>
  
  <pre><code>int main() {
      unsigned num;
      char response;
  
      do {
          printf("Please enter a positive integer greater than 1 and less than 2000: ");
          scanf("%d", &amp; num);
          if(num &gt; 1 &amp;&amp; num &lt; 2000) {
              printf("All the prime factors of %d are given below: \n", num);
              printPrimeFactors(num);
              printf("\n\nThe distinct prime factors of %d are given below: \n", num);
              printDistinctPrimeFactors(num);
          } else {
              printf("Sorry that number does not fall within the given range.\n");
          }
          printf("\n\nDo you want to try another number? Say Y(es) or N(o): ");
          getchar();
          response = getchar();
      }
      while (response == 'Y' || response == 'y'); // if response is Y or y then program runs again
          printf("Thank you for using my program. Good Bye!\n\n"); //if not Y or y, program terminates
      return 0;
  }
  </code></pre>