冒泡排序C

//冒泡排序
#include<stdio.h>
//内存分配函数需加载的头文件
#include<stdlib.h>
//定义顺序表结构类型
typedef struct
{
    //数据域
    int *data;
    //长度
    int length;
}List;
//冒泡排序
void order(List &L)
{
    //i j for循环遍历索引
    int i,j;
    for(i=1;i<=L.length-1;i++)
    {
        for(j=1;j<=L.length-i;j++)
        {
            if(L.data[j]>L.data[j+1])
            {
                int temp;
                temp=L.data[j];
                L.data[j]=L.data[j+1];
                L.data[j+1]=temp;
            }
        }
    }
}
1.查看系统本身存在的版本 rpm -qa | grep yum 2.卸载centos7上存在的yum安装包 rpm -e 包 --nodeps 3.下载yum包(http://mirrors.163.com/centos/7/os/x86_64/Packages/) yum-metadata-parser-1.1.4-10.el7.x86_64 PackageKit-yum-1.0.7-6.el7.centos.x86_64 yum-utils-1.1.31-40.el7.noarch 下方两个一起装 yum-plugin-fastestmirror-1.1.31-40.el7.noarch yum-langpacks-0.4.2-7.el7.noarch yum-3.4.3-150.el7.centos.noarch yum-rhn-plugin-2.0.1-6.el7.noarch 4.安装yum包 rpm -ivh yum* 5.创建配置文件(/etc/yum.repos.d/CentOS-Base.repo) vi /etc/yum.repos.d/CentOS-Base.repo [base] name=CentOS-$releasever - Base - 163.com #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch;=$basearch&repo=os baseurl=http://mirrors.163.com/centos/(系统版本号)7/os/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #released updates [updates] name=CentOS-$releasever - Updates - 163.com #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch;=$basearch&repo=updates baseurl=http://mirrors.163.com/centos/7/updates/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras - 163.com #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch;=$basearch&repo=extras baseurl=http://mirrors.163.com/centos/7/extras/$basearch/ gpgcheck=1 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 #additional packages that extend functionality of existing packages [centosplus] name=$releasever - Plus - 163.com baseurl=http://mirrors.163.com/centos/7/centosplus/$basearch/ gpgcheck=1 enabled=0 gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7 每一个baseurl的centos后都改成自己系统的版本号 6.执行命令 yum clean all yum makecache yum install telnet
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