Enter i to quit or i to continue

[onecbeginner]

Hi all, I have a c programming question I am stuck on.
The question first asks to write a program that takes multiple values and stores the numbers in an array. The array should not be more than 10. Then sort the array in ascending order.


once the array is sorted, the next job is to get user command:


user command: i for insertion, q for quit


typing 'i' prompts for one additional number
typing 'q' quits program


this is the problem i cant solve, i have figured out the whole program accept how to insert a user command to quit or continue after sorting the first array.


if the user types 'i' the program gets a number input from the user and insert one additional number in the correct (ascending order) position of the array.


i tried inserting this after the first array is sorted but did not work:

printf("Enter 'q' to quit or 'i' to continue\n");
  scanf_s("%c", &command);
	  while(command!='q' || command!='Q')
	  {
		  while((command='i')|| (command='I'))
		  {

i also tried an if statement on the quit or insert and couldnt get it to work?


Any help will be greatly appreciated, I've been stuck on this for a few days.


here's what I have so far:

 
#include<stdio.h>
int main()
{
	
	int s,x,j,temp,a[20]; 


  printf("Please enter the array size of no greater than 10:\n ");//Prompt
  scanf_s("%d",&s);//Obtain array size from user
  while(s>10)
  { printf("Please enter the array size, LESS than 10\n");//Prompt
  scanf_s("%d",&s);}//Re-enter array size less than 10


  printf("Please enter %d elements, to sort into ascending order: \n",s);//Prompt
  for(x=0;x<s;x++)
      scanf_s("%d",&a[x]);//Obtain array elements


  for(x=0;x<s;x++){
      for(j=x+1;j<s;j++){
           if(a[x]>a[j]){
               temp=a[x];
              a[x]=a[j];
              a[j]=temp;
           }//Sort array into ascending order
      }
  }


  printf("the strings are: \n");
  for(x=0;x<s;x++)
  { printf(" %d\n",a[x]);}//Print array in ascending order






//Problem section -
  //where i need to prompt user "Enter 'q' to quit or 'i' to continue




			  printf("Enter a number to insert into the array in its corresponding position:\n");//Prompt
			  for(x=s;x<(s+1);x++)
			  {
				  scanf_s("%d",&a[x]);
			  }//Obtain 1 additional number and insert into array
				  for(x=0;x<(s+1);x++)
				  {
					  for(j=x+1;j<(s+1);j++)
					  {
						  if(a[x]>a[j])
						  {
							  temp=a[x];
							  a[x]=a[j];
							  a[j]=temp;
						  }//Sort new array into ascending order
					  }
				  }


		 


			  printf("The new string is: \n");
			  for(x=0;x<(s+1);x++)
			  
			  {
				  printf(" %d\n",a[x]);//Print new array into ascending order
			  
			  }
		  
		  
	  
  return 0;
  
}

[Vsky]

char c; 
c = getch(); // You might need <conio.h> library to use getch();
while( c != 'i' && c != 'q' ) // If you don't enter q or i it will keep asking you to press new key.
    c = getch();
while( c == 'i' ) { //when you press i
    // This code executes.
    c = getch(); // Press new key for another addition to array or quit
    while( c != 'i' && c != 'q' ) // If you don't enter q or i it will keep asking you to press new key.
        c = getch();
}
// Goes here if you press q.

I assumed that you allow user to make insertion as much as they want. If you want to do it once you gotta delete what I wrote inside 2nd while loop and just put your code there and at the end don't forget to type c = 'q'; or it will loop forever.

[jimblumberg]

          while((command='i')|| (command='I'))

Do you know that there's a difference between the assignment operator= and the comparison operator==?

By the way I wouldn't use Vsky's method since it relies on a non-standard function like getch().


Jim

[Vsky]

By the way I wouldn't use Vsky's method since it relies on a non-standard function like getch().
Jim

I'm also begginer He can use scanf too instead of getch() it doesn't matter.

Btw what's wrong with getch()

[jimblumberg]

He can use scanf too instead of getch() it doesn't matter.

But it does matter. Using non-standard functions that were introduced by a long obsolete compiler is really not a good idea when learning to program. Stick with standard C functions until you are familiar with the language.

Btw what's wrong with getch()

It's a non-standard function that is only available with a few compilers and operating systems.


Jim