Thread: newbie assignment help

hey im working on an assignment and am not sure where i went wrong.

Code:

#include <stdio.h>
int main()
{
	int data[99];
	int val;
	int i;
	
	for(i=0;i<=99;i++)
	{
		printf("Enter an integer value (0 to quit): ");
		scanf("&#37;d", &val);
		
		if(val==0 || val==data[99])
	{
		printf("Values in reverse order: \n%d\n", data[i]);
	}
		
		
	}
	
	return 0;
}

the objective is to accept some numbers and then if the array is full or if "0" is entered, the numbers will print in reverse order (where i encountered problem). also, after it displays "numbers in reverse" it restarts the loop..how can i get out also?

Code:

/* arraylist.c */

#include <stdio.h>
int main()
{
	int data[99];
	int val;
	int i;
	
	for(i=0;i<=99;i++)
	{
		printf("Enter an integer value (0 to quit): ");
		scanf("%d", &val);
		
		if(val == 0 || i>99)
	{
	        data[i] = val;	
                

	}
		
		
	}


/* add your reverse printout here */
	
	return 0;
}

also look in to using while() for your scan loop.

hmm so i went back and fixed my code and got something like krpytkat's. however, when i get to the second print part, i get stuck and im not really sure why.

thanks for all the help.

Code:

	for(j=data[i];j>=j[0];j--)
	{
		printf("The Reverse order is: \n%d", data[j]);
	}

Code:

#include <stdio.h>
int main()
{
        int MaxNum = 5;
	int data[MaxNum];
	int val;
	int i;
	
	for (i=0; i<MaxNum; i++)
	{
		printf("Enter an integer value (0 to quit): ");
		scanf("&#37;d", &val);
		
                if (val==0 || i == MaxNum - 1)
                {
	            printf("Values in reverse order: \n");
                    for (; i >= 0; i--)	
                        printf("%7d ", data[i]);
                }
		if (i < 0) i = 0;
		if (val == 0) break;
	}
	
	return 0;
}

the objective is to accept some numbers and then if the array is full or if "0" is entered, the numbers will print in reverse order (where i encountered problem). also, after it displays "numbers in reverse" it restarts the loop..how can i get out also?

Your "new" code offered nothing I could make sense of, sorry. I haven't run the code above, so test it out for yourself - it may have simple errors in it, still.

Anything you don't understand, just let me know.

Code:

	for(j=data[i];j>=j[0];j--)
	{
		printf("The Reverse order is: \n%d", data[j]);
	}

after you exit the first for() loop your variable is out of scope. Meaning you can not do data[i] in the intializer it has to be

Code:

    For(j=0 ; j>0 ; I++ )

edit note should be j++ not i++

or a variable like this

Code:

for (i=0; i<MaxNum; I++)

if you get stuck write your prog on paper then trace each step and print the output manually. So you know what is going on with your prog. Or write a sutocode like so .... so you know what you want to do....

Code:

 int main

  for() .... get in data with scanf() and store data in array


 for() .... print array in reverse order

exit or return 0;