#include<iostream>
#include<string>

using namespace std;

int main()
{
    int n;
    cout<<"input a number:";
    cin>>n;
    while((n>1000)||n<1)
    {
        cout<<"please input a real number:";
        cin>>n;
    }

    string s_name[1000],f_name[1000];
    for(int i=0;i<n;i++)
    {
        cin>>s_name[i]>>f_name[i];
    }

    //防止比较过程中断的先被找到，要对缩略语进行从长到段的排序 冒泡排序
    for(int i=0;i<n-1;i++)
        for(int j=i+1;j<n;j++)
        {
            if(s_name[i].length()<s_name[j].length())
            {
                swap(s_name[i],s_name[j]);
                swap(f_name[i],f_name[j]);
            }
        }

    
    string s;
    cout<<"\n please input the content："<<endl;
    cin>>s;

    for(int i=0;i<n;i++)
    {
        while(s.find(s_name[i])!=string::npos)
        {
            int index=s.find(s_name[i]);
            s.erase(index,s_name[i].length());//删除简写的名称
            s.insert(index,f_name[i]);//插入全称
        }
    }

    cout<<"the full content is:"<<endl;
    cout<<s<<endl;

    return 0;
}

#include<iostream>
using namespace std;

struct Baidu
{
    char s_name[10];
    char f_name[100];
};

void sort_name(Baidu baidu[],int n)
{
    for(int i=0;i<n-1;i++)
        for(int j=i;j<n;j++)
        {
            if(strlen(baidu[i].s_name)<strlen(baidu[j].s_name))
                swap(baidu[i],baidu[j]);
        }
}

void replace_name(Baidu baidu[],char s[],int n)
{
    int length;
    char tmp[1000];
    for(int i=0;i<n;i++)
    {
        char *p=strstr(s,baidu[i].s_name);
        while(p!=NULL)
        {
            length=strlen(baidu[i].s_name);
            *p=0;
            strcpy(tmp,p+length);//把简称后面的内容全部拷贝到tmp内
            //strcat(s,baidu[i].f_name);
            strcat(p,baidu[i].f_name);
            //strcat(s,tmp);
            strcat(p+strlen(baidu[i].f_name),tmp);
            p=strstr(s,baidu[i].s_name);
        }
    }
}

int main()
{
    int n;
    cout<<"input the number of s-f word:";
    cin>>n;
    Baidu baidu[10];
    for(int i=0;i<n;i++)
        cin>>baidu[i].s_name>>baidu[i].f_name;
    sort_name(baidu,n);
    cout<<"input the content:"<<endl;
    char s[1000];
    cin>>s;
    replace_name(baidu,s,n);
    cout<<"replaced content is:"<<endl;
    cout<<s;
}