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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// MurmurOAAT32 hash function
unsigned int MurmurOAAT32(char *key) {
unsigned int h = 3323198485u;
for (; *key; ++key) {
h ^= *key;
h *= 0x5bd1e995;
h ^= h >> 15;
}
return h;
}
// Function to convert unsigned int to string
void unsigned_int_to_string(unsigned int num, char *str) {
sprintf(str, "%u", num);
}
// Function to merge and hash two values in the binary tree
unsigned int merge_and_hash(unsigned int a, unsigned int b) {
unsigned int sum = a + b;
char buffer[11]; // enough to hold a 32-bit unsigned int
unsigned_int_to_string(sum, buffer);
return MurmurOAAT32(buffer);
}
// Definition of tree node
typedef struct Node {
unsigned int data;
struct Node *left;
struct Node *right;
} Node;
// Function to create a new tree node
Node* create_tree_node(unsigned int data) {
Node *new_node = (Node *)malloc(sizeof(Node));
new_node->data = data;
new_node->left = NULL;
new_node->right = NULL;
return new_node;
}
// Recursive function to build the Merkle tree and collect hash values
Node* build_merkle_tree(Node** leaves, int n) {
if (n == 1) {
return leaves[0];
}
int new_n = (n + 1) / 2;
Node** new_leaves = (Node**)malloc(new_n * sizeof(Node*));
for (int i = 0; i < new_n; i++) {
if (2 * i + 1 < n) {
unsigned int combined_hash = merge_and_hash(leaves[2 * i]->data, leaves[2 * i + 1]->data);
Node* parent = create_tree_node(combined_hash);
parent->left = leaves[2 * i];
parent->right = leaves[2 * i + 1];
new_leaves[i] = parent;
} else {
unsigned int adjusted_hash = merge_and_hash(leaves[2 * i]->data, leaves[2 * i]->data);
Node* parent = create_tree_node(adjusted_hash);
parent->left = leaves[2 * i];
new_leaves[i] = parent;
}
}
Node* root = build_merkle_tree(new_leaves, new_n);
free(new_leaves);
return root;
}
// Definition of the correct tree node
typedef struct TreeNode {
unsigned long long value;
struct TreeNode *left;
struct TreeNode *right;
} TreeNode;
// Function to create a new correct tree node
TreeNode* createTreeNode(unsigned long long value) {
TreeNode* newNode = (TreeNode*)malloc(sizeof(TreeNode));
newNode->value = value;
newNode->left = NULL;
newNode->right = NULL;
return newNode;
}
// Function to free the correct tree
void freeTree(TreeNode* root) {
if (root == NULL) return;
freeTree(root->left);
freeTree(root->right);
free(root);
}
// Function to compare two trees and find the wrong data string
void compareTrees(Node* root1, TreeNode* root2, char** data, int* dataIndex, int level) {
if (root1 == NULL && root2 == NULL) {
return;
}
if (root1 == NULL || root2 == NULL) {
return;
}
if (root1->data != root2->value) {
printf("%-15u != %llu\n", root1->data, root2->value);
if (root1->left && root2->left) {
compareTrees(root1->left, root2->left, data, dataIndex, level + 1);
}
if (root1->right && root2->right) {
compareTrees(root1->right, root2->right, data, dataIndex, level + 1);
}
} else {
printf("%-15u == %llu\n", root1->data, root2->value);
if (level == 0) { // This is a leaf node
printf("wrong data %s\n", data[*dataIndex]);
(*dataIndex)++;
}
}
}
int main() {
int n;
scanf("%d", &n);
char **strings = (char **)malloc(n * sizeof(char *));
Node **leaves = (Node **)malloc(n * sizeof(Node *));
unsigned int *hashes = (unsigned int *)malloc(n * sizeof(unsigned int));
for (int i = 0; i < n; i++) {
strings[i] = (char *)malloc(101 * sizeof(char)); // 100 chars + null terminator
scanf("%s", strings[i]);
hashes[i] = MurmurOAAT32(strings[i]);
leaves[i] = create_tree_node(hashes[i]);
}
Node *root = build_merkle_tree(leaves, n);
int m;
scanf("%d", &m);
TreeNode **currentLevel = (TreeNode**)malloc(sizeof(TreeNode*));
TreeNode **nextLevel;
int *levelSizes = (int*)malloc(m * sizeof(int));
int k;
scanf("%d", &k);
if (k != 1) {
fprintf(stderr, "根節點必須只有一個。\n");
return 1;
}
unsigned long long value;
scanf("%llu", &value);
TreeNode* root2 = createTreeNode(value);
currentLevel[0] = root2;
levelSizes[0] = k;
for (int i = 1; i < m; ++i) {
scanf("%d", &k);
levelSizes[i] = k;
nextLevel = (TreeNode**)malloc(k * sizeof(TreeNode*));
for (int j = 0; j < k; ++j) {
scanf("%llu", &value);
nextLevel[j] = createTreeNode(value);
}
int parentIndex = 0;
for (int j = 0; j < levelSizes[i - 1]; ++j) {
if (parentIndex >= k) break;
currentLevel[j]->left = nextLevel[parentIndex++];
if (parentIndex >= k) break;
currentLevel[j]->right = nextLevel[parentIndex++];
}
free(currentLevel);
currentLevel = nextLevel;
}
int dataIndex = 0;
compareTrees(root, root2, strings, &dataIndex, 0);
freeTree(root2);
free(currentLevel);
free(levelSizes);
free(leaves);
free(hashes);
return 0;
}
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