66 lines
1.0 KiB
C
66 lines
1.0 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(struct tree* p)
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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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struct tree* node = (struct tree*)calloc(1,sizeof(struct tree));
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memcpy(node->value,buffer,SIZE);
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//printf("\n%s", node->value);
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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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read_tree(node->left);
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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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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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int main(void)
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{
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struct tree *tr;
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read_tree(tr);
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printf("-------");
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print_tree(tr,3);
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return 0;
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} |