hello all, here im trying to make a tree of numbers that will prompt asking user about the number and based on yes and no the user enters, will serve the tree and should finally get to the answer in the leaves of the tree.

it works, with no error, just it gives me some other number that is not related at all!

anyone can help me with this please? its kind of urgent... thank you

this is the code:

Code:#include<stdio.h> #include<stdlib.h> typedef struct node{ int item; struct node *left; struct node * right; }Node; Node *Tree=NULL; Node *Insert(Node *temp, Node *root){ if(root==NULL){ root=temp; root->left=NULL; root->right=NULL; } else if (temp->item < root->item) root->left=Insert(temp,root->left); else root->right=Insert(temp,root->right); return root; } Node *Create(int a) { Node *temp = (Node*)malloc(sizeof(Node)); temp->left=NULL; temp->right=NULL; temp->item=a; return temp; } int main() { Node *newNode=NULL; char choice1, choice2, choice3, choice4; Node *answer=Tree; Node *num=NULL; //build up the tree newNode=Create(15); Tree=Insert(newNode,Tree); newNode=Create(14); Tree=Insert(newNode,Tree); newNode=Create(16); Tree=Insert(newNode,Tree); newNode=Create(13); Tree=Insert(newNode,Tree); newNode=Create(17); Tree=Insert(newNode,Tree); newNode=Create(12); Tree=Insert(newNode,Tree); newNode=Create(18); Tree=Insert(newNode,Tree); newNode=Create(11); Tree=Insert(newNode,Tree); newNode=Create(19); Tree=Insert(newNode,Tree); newNode=Create(10); Tree=Insert(newNode,Tree); newNode=Create(20); Tree=Insert(newNode,Tree); newNode=Create(9); Tree=Insert(newNode,Tree); newNode=Create(21); Tree=Insert(newNode,Tree); newNode=Create(8); Tree=Insert(newNode,Tree); newNode=Create(22); Tree=Insert(newNode,Tree); //lay out answers in the leaves num = Create(15); Tree = num; num = Create(14); Tree->left = num; num = Create(16); Tree->right= num; num = Create(13); Tree->left->left = num; num = Create(17); Tree->left->right = num; num = Create(12); Tree->left->left->left = num; num = Create(18); Tree->left->left->right = num; num = Create(11); Tree->left->right->left = num; num = Create(19); Tree->left->right->right = num; num = Create(10); Tree->right->left = num; num = Create(20); Tree->right->right= num; num = Create(9); Tree->right->left->left = num; num = Create(21); Tree->right->left->right = num; num = Create(8); Tree->right->right->left = num; num = Create(22); Tree->right->right->right = num; answer=Tree; printf("pick a number between 8, 9, 10, 11, 12, 13, 15, 17, 18, 19, 20, 21, 22\n\n\n"); printf("is the number you have chosen between 11, 12, 13, 14, 17, 18,19? (y/n)\n"); scanf(" %c", &choice1); if ( choice1 == 'y')//left { printf("is the number you have chosen between 12, 13, 18? (y/n)\n"); scanf(" %c", &choice2); if (choice2 == 'y')//left->left { printf("is the number you have chosen 12? (y/n)\n"); scanf(" %c", &choice3); if (choice3 == 'y')//left->left->left answer= answer->left->left->left; else if (choice3 == 'n')//left->left->right { printf("is the number you have chosen 18? (y/n)\n"); scanf(" %c", &choice4); if(choice4 == 'y') answer = answer->left->left->right; else if(choice4 == 'n') answer = answer->left->left; } } else if (choice2 == 'n') { printf("is the number you have chosen 11? (y/n)\n"); scanf(" %c", &choice3); if (choice3 == 'y')//left->right->left answer= answer->left->right->left; else if (choice3 == 'n')//left->right->right { printf("is the number you have chosen 19? (y/n)\n"); scanf(" %c", &choice4); if(choice4 == 'y') answer = answer->left->right->right; else if(choice4 == 'n') answer = answer->left->right; } } } else if (choice1 == 'n') //right { printf("is the number you have chosen between 9, 10, 21? (y/n)\n"); scanf(" %c", &choice2); if (choice2 == 'y') { printf("is the number you have chosen 9? (y/n)\n"); scanf(" %c", &choice3); if (choice3 == 'y')//right->left->left answer= answer->right->left->left; else if (choice3 == 'n')//left->left->right { printf("is the number you have chosen 21? (y/n)\n"); scanf(" %c", &choice4); if(choice4 == 'y') answer = answer->right->left->right; else if(choice4 == 'n') answer = answer->right->left; } } else if (choice2 == 'n') { printf("is the number you have chosen 8? (y/n)\n"); scanf(" %c", &choice3); if (choice3 == 'y')//left->right->left answer= answer->right->right->left; else if (choice3 == 'n')//left->right->right { printf("is the number you have chosen 22? (y/n)\n"); scanf(" %c", &choice4); if(choice4 == 'y') answer = answer->right->right->right; else if(choice4 == 'n') answer = answer->right->right; } } } printf("The number in your mind is %d \n", &answer); return 0; }