Introduction to Tree Data Structures
main.c
#include <stdlib.h>
#include <stdio.h>
typedef struct TreeNode {
int val;
struct TreeNode* left;
struct TreeNode* right;
} TreeNode;
TreeNode* new_node(int val) {
TreeNode* n = malloc(sizeof(TreeNode));
n->val = val;
n->left = NULL;
n->right = NULL;
return n;
}
// 0
// / \
// 1 2
int main(int argc, char* argv[]) {
TreeNode* root = new_node(0);
root->left = new_node(1);
root->right = new_node(2);
printf("Root value is %d\n", root->val);
printf("Left descendant of root is %d\n", root->left->val);
printf("Right descendant of root is %d\n", root->right->val);
return 0;
}
