94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#define SIZE 100
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struct node {
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// Otázka aleo odpoveď
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char data[SIZE];
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// Odpoveď áno
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struct node* left;
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// Odpoveď nie
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struct node* right;
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};
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struct node* read_tree(int* count, int* leafs){
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char buffer[SIZE];
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memset(buffer,0,SIZE);
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char* r = fgets(buffer,SIZE,stdin);
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assert(r);
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struct node* node = calloc(1,sizeof(struct node));
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memcpy(node->data,buffer,SIZE);
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if(r[0]!='*'){
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*count = *count +1;
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node->left=read_tree(count, leafs);
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node->right=read_tree(count, leafs);
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}else {
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*leafs = *leafs+1;
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}
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return node;
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}
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void print_tree(struct node* tree,int offset){
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for (int i = 0; i < offset; i++){
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printf(" ");
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}
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printf("%s",tree->data);
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if (tree->left){
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print_tree(tree->left,offset +3);
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print_tree(tree->right,offset +3);
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}
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}
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void remove_tree(struct node* node){
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if ( node != NULL ){
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remove_tree(node->left);
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remove_tree(node->right);
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free(node);
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}
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}
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void ask(struct node* tree){
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printf("%s", tree->data);
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if(tree->data[0] == '*'){
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puts("Koniec");
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return;
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}
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char buff[SIZE];
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char* r = fgets(buff, SIZE, stdin);
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if(r == NULL){
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puts("Koniec vstupu");
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return;
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}
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r = fgets(buff, SIZE, stdin);
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if(r[0] == 'a' && tree->left != NULL){
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tree = tree->left;
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ask(tree);
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}else if(r[0] == 'n' && tree->right != NULL) {
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tree = tree->right;
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ask(tree);
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}else{
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puts("Nerozumiem");
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return;
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}
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}
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int main(){
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struct node* tree;
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int count = 0;
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int leafs = 0;
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tree = read_tree(&count, &leafs);
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//print_tree(tree, 20);
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puts("Expert z bufetu to vie.");
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printf("Pozna %d druhov ovocia a zeleniny.\n",leafs);
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puts("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.");
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ask(tree);
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remove_tree(tree);
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return 0;
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}
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