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POCreate tree node in c, hard code the tree
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copied!<p>The program that I want achieve here is to construct a tree by hard coding, and then print out the hard code tree. I start with a struct which contain a object name, a question, and a yes or no node that point to the same struct. In the main method, i tried to construct the struct step by step. But I believe that is not the right way of creating a tree with node. </p> <p>Description of my design: It s a game between computer and user, the computer ask for the question, and then the user answer it with yes or no, and the computer will guess for the object. </p> <pre><code> Start here | v Does it have a tail? /yes no\ v v a pangolin Is it flat, round and edible? /yes no\ v v a pizza Pete #include <stdio.h> #include <stdlib.h> //object name as key, questions as value struct node { char *objectname;// a string declaration to hold an object-name (which may be NULL) char *question;// a string declaration to hold a question (which may be NULL) struct node *yes_ptr; // only NULL for objects struct node *no_ptr; // only NULL for objects }; typedef struct node thenode; thenode *objectname = NULL; thenode *question =NULL; void nodePrint(struct node *ptr){ if(ptr->objectname == NULL) { printf("Object : [NOTHING]" ); printf("Question : %s", ptr->question); printf("Yes : &s", ptr->yes_ptr); printf("No : &s", ptr->no_ptr); }else { printf("Object : %s", ptr->objectname); printf("Question : [NOTHING]"); } } int main(argc, **argv){ //if ((new_obj = malloc(sizeof(thenode))) == NULL) { abort(); } thenode a={NULL, "Does it have a tail?", "a pangolin", "pete"}; thenode b={"a pizza",NULL, NULL, NULL}; //thenode c={NULL, "Is it flat, round and edible?", "a pizza", "pete"}; //thenode c={NULL, "Can you dip it in your tea? ", "biscuit", "a pizza"}; struct node *ptr = &thenode; nodePrint(&a); nodePrint(&b); } </code></pre>

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