103 lines
1.8 KiB
C
103 lines
1.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include <assert.h>
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#include <string.h>
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#define SIZE 200
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struct tree
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{
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char value[SIZE];
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struct tree *left, *right;
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};
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struct tree* read_tree()
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{
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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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if(buffer[0]=='\n')
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return NULL;
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struct tree* node = (struct tree*)calloc(1,sizeof(struct tree));
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memcpy(node->value,buffer,SIZE);
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node->left=NULL;
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node->right=NULL;
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if(node->value[0]!='*')
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{
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node->left=read_tree(node->left);
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node->right=read_tree(node->right);
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}
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return node;
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}
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void print_tree(struct tree* 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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if(tree)
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printf("%s",tree->value);
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if (tree->left){
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print_tree(tree->left,offset +3);
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}
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if (tree->right){
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print_tree(tree->right,offset +3);
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}
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}
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void destroy_tree(struct tree* tree){
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if(tree==NULL) return;
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destroy_tree(tree->left);
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destroy_tree(tree->right);
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free(tree);
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}
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int main(void)
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{
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struct tree *tr;
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tr=read_tree();
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char t;
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printf("Expert z bufetu to vie.\n");
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printf("Pozna 2 druhov ovocia a zeleniny.\n");
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struct tree *p=tr;
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printf("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.\n");
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do
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{
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printf("%s",p->value);
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if(p->value[0]=='*')
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break;
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do
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{
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t=fgetc(stdin);
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if(t=='a')
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{p=p->left; break;}
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if(t=='n')
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{p=p->right; break;}
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}while(1);
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}while(1);
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printf("Koniec\n");
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destroy_tree(tr);
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tr=NULL;
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return 0;
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}
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