problem linked list and struct

[Rhino]

I have to make little program with linked list and structs. but I'm a little stuck atm.
de task is pritty easy, I need to make a tree and in every node there is a question depending on the anwer u give he should take the 'left' solution or the 'right' solution.
for example :
Do you want some soup? j/n ?
j -> you still want some soup?
n-> u want some foot? j/n?

so this is bit the task.
I came up with some thing like this:


#include <iostream>
#include <string>
using namespace std;

struct node{
string question;
struct node *yes, *no;
};



void question(node *bla)
{
cout << bla->vraag << endl;
char *ch;
cin >> ch;
if (ch="j")
question(bla-yes);
if (ch="n");
question(bla->no);
}



int main()
{
node *A, *B, *C, *D, *E;
A = new node;
B = new node;
C = new node;
D = new node;
E = new node;

A->yes=B;
A->no=C;
B->yes=C;
B->no=C;
C->yes=D;
C->no=E;
D->yes=E;
D->no=E;



A->question="U want some soup j/n";
B->question="U want some soup after j/n";
C->question="u want some food j/n";
D->question="U want some food after j/n";
E->question="U want to drink some j/n";

vraag(A);



return 0;
};

I pritty new in c++ but I would think this should work but it doesn't .
any one could help me?
ty

[horace1]

your function question() had a couple of errors
I think this fixes them

void question(node *bla)
{
cout << bla->question << endl;  // ** change vraag to question
char *ch;
cin >> ch;
if (ch="j")   
question(bla->yes);  // ** fixed ->
if (ch="n");
question(bla->no);
}
 

the next error is in main() where you call

vraag(A);
 

which does not exist in the code

[Rhino]

I translated it :)
vraag = question
and your fixes don't fix the problem I get :s.
my Dev-c++ give no errors. but he crashes when I execute

[horace1]

I translated it :)
vraag = question
and your fixes don't fix the problem I get :s.
my Dev-c++ give no errors. but he crashes when I execute

a few more errors in question, e.g.

void question(node *bla)
{
cout << bla->question << endl;  // ** change vraag to question
char ch;                       // ** removed *
cin >> ch;
if (ch=='n')                    // **changed = to == and " to '
question(bla->yes);              // ** fixed ->
if (ch=='n');                   // ** change = to == and " to '
question(bla->no);
}
 

i now executes until you run off the end of your list

[Rhino]

Ty very much
It where dumb error.