Thread: sorting random numbers with bubblesort

A high level description in English or whichever is a programmer's first language. i.e.

1. Prompt user for the lowest & highest value.
2. Prompt the user for the number of random values.
3. Select and store random values until number of values equals number from #2.
...

İ am probably having a problem returning these functions in the main function.(like you said)what can I write in the main function so that I can use these functions and also because of bubblesort being a void is it wrong to delete it while writing it in the main function.I believe this is has to be done first.so what i mean what can i write to the main function so that i use use the functions outside the main function.because as u said it returns nothing.so if we can go step by step.it will be more helpful
After that we can go on with the errors in the functions.

Also I wanted to add that n is not unknown it is given in the main function and when the program runs it asks it from the user.

Originally Posted by CommonTater

But then you declare a new copy of N inside your random number function. This internal variable masks (hides) the one in main and is used in an uninitialized state in your function. You should be passing N into the function, not counting upon it's existence elsewhere...A good function performs 1 task... not half of your program's chores.

Code:

#include #include #include void MakeLuckyNumbers(int *array, int min, int max, int num)  {  int i;      for (i=0; i < num; i++)          array[i]= min + (rand() % (max - min));  }int main()  {     int min = -1;     int max = -1;     int num = -1;      int numbers[100];          printf("Lucky number generator... \n\n");     srand(time(NULL));     do        {          printf("How many numbers? : ");       }        while (scanf("%d", &num) < 1 || num < 0 || num > 100);    do        {          printf("The highest number? : ");       }        while (scanf("%d", &max) < 1 || max < 0);    do        {          printf("The lowest number? : ");       }        while (scanf("%d", &min) < 1 || min < 0 || min > max);    MakeLuckyNumbers(numbers,min,max,num);    printf("Your lucky numbers are...\n");    for (int i = 0; i < num; i++)      printf("%d  ",numbers[num]);    printf("\n\n");    return 0;}

using my program how can i fix this N problem?and can u sent a program with bubblesort function?because i think bubblesort works differently than other functions and that while we are using it in the main function we have to do something different.and i want to ask if i can use this algorithm if i do some changes.will it work?because i am starting this that this program will never work.if this algorithm will do can u tell me using my program where in my algorithm i have to do the changes.it would be helpful if u could write it right next to where the changes are needed.

Originally Posted by Sam19911

using my program how can i fix this N problem?and can u sent a program with bubblesort function?because i think bubblesort works differently than other functions and that while we are using it in the main function we have to do something different.and i want to ask if i can use this algorithm if i do some changes.will it work?because i am starting this that this program will never work.if this algorithm will do can u tell me using my program where in my algorithm i have to do the changes.it would be helpful if u could write it right next to where the changes are needed.

I set you on the right track... showed you an example of how to do this...
Now it's up to you to study and learn, then fix your own code.

I am not going to do your homework for you.