#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/types.h>
#include <dirent.h>
#include <unistd.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <string.h>

int main (int argc, char * argv[])
{
    long long sum_size = 0;
    long long max_size = 0;
    char max_name[500] = {'\0'};
    char *p;
    long long max_sum_size = strtol(argv[2], &p, 10);

    struct dirent *ep;
    DIR *dp = opendir(argv[1]);
    if (dp != NULL) {
        ep = readdir(dp);
        while (ep != NULL) {
            struct stat buffer;
            char file_path[PATH_MAX + 1];
            sprintf(file_path, "%s/%s", argv[1], ep->d_name);
            int status = stat(file_path, &buffer);
            if (status == 0) {
                //регулярный файл?
                if (S_ISREG(buffer.st_mode) && !S_ISLNK(buffer.st_mode)) {
                    sum_size += buffer.st_size;
                    if (buffer.st_size > max_size) {
                        max_size = buffer.st_size;
                        strcpy(max_name, ep->d_name);
                    } else if (buffer.st_size == max_size &&
                    strcmp(ep->d_name, max_name) < 0) {
                        strcpy(max_name, ep->d_name);
                    }
                }
            }
            ep = readdir(dp);
        }
        closedir(dp);
    }
    if (sum_size > max_sum_size) {
        printf("%s", max_name);
    }
    return 0;
}