洛谷测评机信息

用户

共26个，如下：

root
daemon
bin
sys
sync
games
man
lp
mail
news
uucp
proxy
www-data
backup
list
irc
gnats
nobody
_apt
systemd-timesync
systemd-network
systemd-resolve
messagebus
sshd
systemd-coredump
redis

型号

Intel(R) Xeon(R) Platinum 8369HC CPU @ 3.30GHz

空间

数据截止至2024-7-10 15:58

总空间: 41955831808 MB(39 GB)

可用空间: 9529876480MB(8 GB)

代码运行路径及程序名

路径：/tmp/exec_随机的八位字符串/

我们的代码程序名：prog

如何测试

用户

#include <fstream>
#include <iostream>
#include <sstream>
#include <string>
#include <vector>

int main() {
    std::ifstream passwdFile("/etc/passwd");
    if (!passwdFile) {
        std::cerr << "Error: Unable to open /etc/passwd\n";
        return 1;
    }

    std::string line;
    while (std::getline(passwdFile, line)) {
        std::istringstream iss(line);
        std::string username;
        std::getline(iss, username, ':'); 
        std::cout << username << std::endl;
    }

    passwdFile.close();
    return 0;
}

型号

#include <iostream>
#include <fstream>
#include <string>

int main() {
    std::string line;
    std::ifstream cpuinfo("/proc/cpuinfo");

    if (cpuinfo.is_open()) {
        while (getline(cpuinfo, line)) {
            if (line.find("model name") != std::string::npos) {
                std::size_t pos = line.find(":");
                if (pos != std::string::npos) {
                    std::string model = line.substr(pos + 2);
                    std::cout << model << std::endl;
                    break;
                }
            }
        }
        cpuinfo.close();
    } else {
        std::cerr << "Unable to open /proc/cpuinfo" << std::endl;
    }

    return 0;
}

空间

#include <iostream>
#include <sys/statvfs.h>

int main() {
    struct statvfs buf;
    
    if (statvfs("/", &buf) == 0) {
        unsigned long long total_space = buf.f_frsize * buf.f_blocks;
        unsigned long long free_space = buf.f_frsize * buf.f_bfree;
        
        std::cout << "总空间: " <<total_space<<" MB("<< total_space / (1024 * 1024 * 1024) << " GB)" << std::endl;
        std::cout << "可用空间: "<<free_space<<"MB(" << free_space / (1024 * 1024 * 1024) << " GB)" << std::endl;
    } else {
        std::cerr << "获取文件系统信息失败" << std::endl;
        return 1;
    }
    
    return 0;
}

代码运行路径及程序名

#include <iostream>
#include <unistd.h>

int main(int argc, char *argv[]) {
    char buffer[FILENAME_MAX];

    if (argc > 0) {
        std::cout << argv[0] << std::endl;
    } else {
        std::cerr << "无法获取程序文件名" << std::endl;
        return 1;
    }

    return 0;
}