programming-language.r1.c

```h
#ifndef TNARY_H
#define TNARY_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>

#define MARKER -1

typedef struct TnaryTreeNode_s TnaryTreeNode;
struct TnaryTreeNode_s {
    struct TnaryTreeNode_s **children;
    char data[2];
};

TnaryTreeNode *TnaryTreeNode_add_child(TnaryTreeNode *tree, TnaryTreeNode *node);

typedef struct TnaryTree_s TnaryTree;
struct TnaryTree_s {
    TnaryTreeNode *root;
};

TnaryTree* TnaryTreeNode_new(char data[2]);
void TnaryTree_free_node(TnaryTreeNode *node);
void TnaryTree_serialize(FILE *fp, TnaryTree *tree);
char* TnaryTree_deserialize(FILE *fp);
void TnaryTree_printTree(TnaryTreeNode *node, int level);

#define MAP_MAX_HASH_SIZE  128
typedef struct MapNode_s MapNode;
struct MapNode_s {
    char *data;
    struct MapNode_s *next;
};

typedef struct Map_s Map;
struct Map_s {
    char *key;
    size_t count;
    MapNode *value[MAP_MAX_HASH_SIZE];
};

Map* Map_new();
unsigned int Map_hash(char *str);
bool Map_set(Map *map, char *key, MapNode *node);
MapNode* Map_get(Map *map, char *key);
void Map_clear(Map *map);

#endif /* TNARY_H */
```
```c
#include "tnary.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>

// Implementation of TnaryTreeNode_new
TnaryTree* TnaryTreeNode_new(char data[2]) {
    TnaryTree *tree = (TnaryTree *)malloc(sizeof(TnaryTree));
    TnaryTreeNode *node = (TnaryTreeNode *)malloc(sizeof(TnaryTreeNode));
    node->children = (TnaryTreeNode **)malloc(3 * sizeof(TnaryTreeNode *));
    for (int i = 0; i < 3; i++) {
        node->children[i] = NULL;
    }
    strcpy(node->data, data);
    tree->root = node;
    return tree;
}

// Implementation of TnaryTree_free_node
void TnaryTree_free_node(TnaryTreeNode *node) {
    for (int i = 0; i < 3; i++) {
        if (node->children[i] != NULL) {
            TnaryTree_free_node(node->children[i]);
        }
    }
    free(node->children);
    free(node);
}
TnaryTreeNode *TnaryTreeNode_add_child(TnaryTreeNode *parent, TnaryTreeNode *child) {
    for (int i = 0; i < 3; i++) {
        if (parent->children[i] == NULL) {
            parent->children[i] = child;
            return child;
        }
    }
    return NULL;
}



// Implementation of TnaryTree_serialize
void TnaryTree_serialize(FILE *fp, TnaryTree *tree) {
    for (int i = 0; i < 3; i++) {
        if (tree->root->children[i] != NULL) {
            fprintf(fp, "%s", tree->root->children[i]->data);
        }
    }
}

// Implementation of TnaryTree_deserialize
char* TnaryTree_deserialize(FILE *fp) {
    char *data = (char *)malloc(sizeof(char) * 2);
    fscanf(fp, "%s", data);
    for (int i = 0; i < 3; i++) {
        TnaryTreeNode *node = (TnaryTreeNode *)malloc(sizeof(TnaryTreeNode));
        node->children = (TnaryTreeNode **)malloc(3 * sizeof(TnaryTreeNode *));
        for (int i = 0; i < 3; i++) {
            node->children[i] = NULL;
        }
        fscanf(fp, "%s", node->data);

     TnaryTree_printTree(node, 0);
    }
    return data;
}

void TnaryTree_printTree(TnaryTreeNode *node, int level) {
    if (node == NULL) {
        return;
    }
    for (int i = 0; i < level; i++) {
        printf("| ");
    }
    printf("%s\n", node->data);
    for (int i = 0; i < 3; i++) {
        TnaryTree_printTree(node->children[i], level + 1);
    }
}

// Implementation of Map_new
Map* Map_new() {
    Map *map = (Map *)malloc(sizeof(Map));
    map->key = NULL;
    map->count = 0;
    for (int i = 0; i < MAP_MAX_HASH_SIZE; i++) {
        map->value[i] = NULL;
    }
    return map;
}

// Implementation of Map_hash
unsigned int Map_hash(char *str) {
    unsigned int hash = 5381;
    int c;
    while ((c = *str++)) {
        hash = ((hash << 5) + hash) + c;
    }
    return hash % MAP_MAX_HASH_SIZE;
}

// Implementation of Map_set
bool Map_set(Map *map, char *key, MapNode *new_node) {
    unsigned int hash = Map_hash(key);
    MapNode *node = map->value[hash];
    if (node == NULL) {
        map->value[hash] = new_node;
        map->count++;
        return true;
    }
    while (node->next != NULL) {
        node = node->next;
    }
    node->next = new_node;
    map->count++;
    return true;
}

// Implementation of Map_get
MapNode* Map_get(Map *map, char *key) {
    unsigned int hash = Map_hash(key);
    MapNode *node = map->value[hash];
    while (node != NULL) {
        if (strcmp(node->data, key) == 0) {
            return node;
        }
        node = node->next;
    }
    return NULL;
}

// Implementation of Map_clear
void Map_clear(Map *map) {
    for (int i = 0; i < MAP_MAX_HASH_SIZE; i++) {
        MapNode *node = map->value[i];
        while (node != NULL) {
            MapNode *temp = node;
            node = node->next;
            free(temp);
        }
    }
    free(map);
}
```
```c
// main.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "tnary.h"

int main() {
    TnaryTree *tree_node = TnaryTreeNode_new("a");
    TnaryTree *node = TnaryTreeNode_new("b");
    TnaryTreeNode_add_child(tree_node->root, node->root);
    node = TnaryTreeNode_new("c");
    TnaryTreeNode_add_child(tree_node->root, node->root);
    node = TnaryTreeNode_new("d");
    TnaryTreeNode_add_child(tree_node->root, node->root);

    FILE *fp = fopen("test.txt", "w");
    TnaryTree_serialize(fp, tree_node);
    fclose(fp);

    fp = fopen("test.txt", "r");
    char *data = TnaryTree_deserialize(fp);
    printf("Deserialized data: %s\n", data);
    free(data);
    fclose(fp);

    TnaryTree_free_node(tree_node->root);

    Map *map = Map_new();

    // Set data of tree_node root to contain characters within the node and add it to the Map
    MapNode *new_node_a = (MapNode *)malloc(sizeof(MapNode));
    new_node_a->data = "a"; // Changed 'key' to 'data' according to the typedef
    new_node_a->next = NULL;
    Map_set(map, "fn", new_node_a); // Function keyword

    MapNode *new_node_b = (MapNode *)malloc(sizeof(MapNode));
    new_node_b->data = "b"; // Changed 'key' to 'data' according to the typedef
    new_node_b->next = NULL;
    Map_set(map, "b", new_node_b);

    MapNode *new_node_c = (MapNode *)malloc(sizeof(MapNode));
    new_node_c->data = "c"; // Changed 'key' to 'data' according to the typedef
    new_node_c->next = NULL;
    Map_set(map, "c", new_node_c);

    MapNode *new_node_d = (MapNode *)malloc(sizeof(MapNode));
    new_node_d->data = "d"; // Changed 'key' to 'data' according to the typedef
    new_node_d->next = NULL;
    Map_set(map, "d", new_node_d);

    // Retrieving and printing data from the map
    printf("Data in the map:\n");
   MapNode *map_node = Map_get(map, "fn"); // Changed the key to "fn"
printf("%s\n", map_node->data); // Changed 'key' to 'data' according to the typedef

for(size_t i = 0; i < MAP_MAX_HASH_SIZE; i++) {
    if(map->value[i] != NULL) { // Changed 'buckets' to 'value' according to the typedef
        printf("%s\n", map->value[i]->data); // Changed 'key' to 'data' according to the typedef
    }
}


    // Freeing memory
    Map_clear(map);

    return 0;
}
// gcc -Wall -Werror -ansi -Wpedantic -g main.c tnary.c tnary.h -o tnary -std=c99

```