typedef struct {
    int timestamp;
    char* value;
} Entry;

typedef struct {
    char* key;
    Entry* entries;
    int count;
    int capacity;
} KeyEntry;

typedef struct {
    KeyEntry* keys;
    int keyCount;
    int keyCapacity;
} TimeMap;

TimeMap* timeMapCreate() {
    TimeMap* tm = malloc(sizeof(TimeMap));
    tm->keys = malloc(10 * sizeof(KeyEntry));
    tm->keyCount = 0;
    tm->keyCapacity = 10;
    return tm;
}

void timeMapSet(TimeMap* obj, char* key, char* value, int timestamp) {
    // Find or create key entry
    for (int i = 0; i < obj->keyCount; i++) {
        if (strcmp(obj->keys[i].key, key) == 0) {
            // Add to existing key
            obj->keys[i].entries[obj->keys[i].count].timestamp = timestamp;
            obj->keys[i].entries[obj->keys[i].count].value = strdup(value);
            obj->keys[i].count++;
            return;
        }
    }
    // Create new key entry (simplified)
}

char* timeMapGet(TimeMap* obj, char* key, int timestamp) {
    for (int i = 0; i < obj->keyCount; i++) {
        if (strcmp(obj->keys[i].key, key) == 0) {
            char* bestValue = "";
            int bestTimestamp = -1;
            
            for (int j = 0; j < obj->keys[i].count; j++) {
                Entry* entry = &obj->keys[i].entries[j];
                if (entry->timestamp <= timestamp && entry->timestamp > bestTimestamp) {
                    bestTimestamp = entry->timestamp;
                    bestValue = entry->value;
                }
            }
            
            return bestValue;
        }
    }
    return "";
}