一个软件制作望帮助啊

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <json-c/json.h>

typedef struct {
    char* name;
    int x;
    int y;
    int z;
} File;

double calculateDistance(int x1, int y1, int z1, int x2, int y2, int z2) {
    int dx = x2 - x1;
    int dy = y2 - y1;
    int dz = z2 - z1;
    return sqrt(dx*dx + dy*dy + dz*dz);
}

int compareFiles(const void* a, const void* b) {
    File* fileA = *(File**)a;
    File* fileB = *(File**)b;

    // 计算与初始点的距离
    double distanceA = calculateDistance(fileA->x, fileA->y, fileA->z, initialFile->x, initialFile->y, initialFile->z);
    double distanceB = calculateDistance(fileB->x, fileB->y, fileB->z, initialFile->x, initialFile->y, initialFile->z);

    // 按距离排序
    if (distanceA < distanceB) {
        return -1;
    } else if (distanceA > distanceB) {
        return 1;
    } else {
        return 0;
    }
}

int main() {
    // 打开json文件
    FILE* file = fopen("input.json", "r");
    if (file == NULL) {
        printf("无法打开文件\n");
        return 0;
    }

    // 读取文件内容
    char* jsonString = NULL;
    size_t length = 0;
    ssize_t read;

    read = getline(&jsonString, &length, file);
    fclose(file);

    // 解析JSON文件
    json_object* jsonObject = json_tokener_parse(jsonString);
    free(jsonString);

    // 获取文件数量
    int fileCount = json_object_object_length(jsonObject);

    // 创建文件数组
    File** files = (File**)malloc(fileCount * sizeof(File*));

    // 逐个提取文件中的坐标数据
    int index = 0;
    json_object_object_foreach(jsonObject, key, val) {
        files[index] = (File*)malloc(sizeof(File));
        files[index]->name = strdup(key);

        json_object* xObject = json_object_object_get(val, "x");
        files[index]->x = json_object_get_int(xObject);

        json_object* yObject = json_object_object_get(val, "y");
        files[index]->y = json_object_get_int(yObject);

        json_object* zObject = json_object_object_get(val, "z");
        files[index]->z = json_object_get_int(zObject);

        index++;
    }

    // 随机选择一个初始点
    srand(time(NULL));
    File* initialFile = files[rand() % fileCount];

    // 根据距离排序其他文件
    qsort(files, fileCount, sizeof(File*), compareFiles);

    // 导出处理好的文件
    FILE* outputDir = fopen("output", "w");
    for (index = 0; index < fileCount; index++) {
        fprintf(outputDir, "%s\n", files[index]->name);
        free(files[index]->name);
        free(files[index]);
    }
    fclose(outputDir);

    // 释放内存
    free(files);
    json_object_put(jsonObject);

    return 0;
}