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Type: Posts; User: budala

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1. ## Thread: Print all nodes of the same level from binary tree

by budala
Replies
3
Views
16,027

### Print all nodes of the same level from binary tree

This is the scenario:

1. user inputs an int N for the desired level
2. if N is greater than the total number of levels in the tree, repeat input
3. if N is less than 0, repeat input
4. if N is...
2. ## Thread: how do i insert a row into a matrix?

by budala
Replies
6
Views
4,508

### I'm sorry but I can't build a matrix with a large...

I'm sorry but I can't build a matrix with a large enough number of rows, because the rows should grow dynamically :(
3. ## Thread: how do i insert a row into a matrix?

by budala
Replies
6
Views
4,508

### how do i insert a row into a matrix?

I start with a matrix which has 10 columns and just one row, and I would like to add a seccond row below that one if the elements in the first row satisfy a certain property, add a third if the...

by budala
Replies
4
Views
4,563

got it!

by budala
Replies
4
Views
4,563

### I think I didn't make my self clear. When I said...

I think I didn't make my self clear. When I said "end" i thought "after the last node in the list" or more precisely "before the beginning in the list"

by budala
Replies
4
Views
4,563

Hi there. Long time no read :)

I have a problem with my circular list. I can add a node to the end of the list just fine, but I can't seem to add it to the beginning.

This is (sort of a...

by budala
Replies
8
Views
1,605

### dang nabbit :D

dang nabbit :D

by budala
Replies
8
Views
1,605

### yes i did read it and thats what led me to...

yes i did read it and thats what led me to believe that instead of remembering to free everything I could use alloca

by budala
Replies
8
Views
1,605

### @Salem - did I then misunderstand the purpose of...

@Salem - did I then misunderstand the purpose of alloca? Is it not suppose to do the allocating and freeing of memory instead of ... Me? :D

by budala
Replies
8
Views
1,605

### When I input name: "abc", age: "20", id: "1" the...

When I input name: "abc", age: "20", id: "1" the printout function returns this to the screen

NAME: ????!?!? AGE: 1832928 ID: 29382235

by budala
Replies
8
Views
1,605

### alloca() function

I would like to dynamically allocate memory for nodes in a linked list. I used to use malloc() and free() afterwards, but heard lately that it's simpler (with certain limitations like running out of...

by budala
Replies
3
Views
764

### I would like to avoid hashing. Not that I'm...

I would like to avoid hashing. Not that I'm affraid of it, just want to do it the "normal" way using only that one linked list ;)

by budala
Replies
3
Views
764

### Mass deletion from linked list

How would one go about deleting every single person (node) from a singly linked list which has the name Jack?

i.e.

Start:

Jack -> John -> Ann -> Bill -> Jack -> Jack -> Frank -> Jack
...

by budala
Replies
9
Views
9,829

### that's exactly that! I figured out that my logic...

that's exactly that! I figured out that my logic is flawed in that respect ;)

by budala
Replies
9
Views
9,829

### That's what happens when you replace with...

That's what happens when you replace with copy/paste, and then add some more code whilst forgetting to replace it also :D

Anyways, replaced the idioms in my native language with english ones, and...

by budala
Replies
9
Views
9,829

### Sort linked list by pointer manipulation

Hi there, long time no bother :D

I am trying to sort a singly linked list using pointer manipulation using a "selection sort"-ish algorithm and I'm having problems.

My idea is this:

1....
17. ## Thread: Insertion sort - sort an array of structs using a single field

by budala
Replies
1
Views
8,345

### solved it. trivial really but not a couple of...

solved it. trivial really but not a couple of hours ago :D

one simply needs to keep track of the element from which we are using the desired field for comparison. I called it element x :D

int...
18. ## Thread: Insertion sort - sort an array of structs using a single field

by budala
Replies
1
Views
8,345

### Insertion sort - sort an array of structs using a single field

I have an array of structs
typedef struct node
{
int a,b,c,d;
} element;

...

element array[5];
19. ## Thread: bubble sort directional problems

by budala
Replies
1
Views
1,189

### bubble sort directional problems

I want to sort an array using bubble sort. I know it's the slowest but i have only 5-10 elements so it's fast enough. My algorithm for bubble sort works cause if I code this

void Bubble(int...
20. ## Thread: convert char array to integer number

by budala
Replies
15
Views
32,549

### since an array of chars is basically a string,...

since an array of chars is basically a string, why not try this...

#include <stdio.h>
#include <string.h>
#include <ctype.h>

int main (int argc, const char * argv[])
21. ## Thread: returning a string from a function

by budala
Replies
4
Views
1,103

### Of course, but apart from that, if the user...

Of course, but apart from that, if the user ALWAYS enters less than 20 characters, is it ok?
22. ## Thread: returning a string from a function

by budala
Replies
4
Views
1,103

### returning a string from a function

is anything wrong with this approach?

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void str_output(char *x)
{
scanf("%s", x);
23. ## Thread: delete a node from an array of linked lists

by budala
Replies
6
Views
3,719

### I guess I could/should have included a break in...

I guess I could/should have included a break in the for loop after it finds the sought node :)
24. ## Thread: delete a node from an array of linked lists

by budala
Replies
6
Views
3,719

### I wasn't expecting for all my problems to be...

I wasn't expecting for all my problems to be solved. The fact that on this forum one doesn't get the code wrapped up in shiny paper is a great plus for me as it is more important to realise why...
25. ## Thread: delete a node from an array of linked lists

by budala
Replies
6
Views
3,719

### Nope, still doesn't work! It doesn't delete the...

Nope, still doesn't work! It doesn't delete the node i want when it does exist, but it does return 0 when i try to delete a non-existing node.

I colored the new lines of code red

int...
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