按照给定字典序排序单词(string的读入操作)

#include <iostream>
#include <algorithm>
#include <cstring>
#include <sstream>
using namespace std;
const int N = 1e5;
string order;
string line;
string arr[N];
int find(char a)
{
    for(int i=0;i<order.size();i++)
    {
        int tmp = abs(a-order[i]);
        if(tmp==0||tmp==32) return i;
    }
}
bool cmp(string a,string b)
{
    for(int i=0;i<min(a.size(),b.size());i++)
    {
        if(find(a[i])==find(b[i])) continue;
        else return find(a[i])<find(b[i]);
    }
    return a.size()<b.size();
}
int main()
{
    while(cin>>order)
    {
        getchar();
        getline(cin,line);
        istringstream ss(line);
        int n=0;
        while(ss>>arr[n]) n++;
        sort(arr,arr+n,cmp);
        for(int i=0;i<n;i++) cout<<arr[i]<<" ";
        puts("");
    }
    return 0;
}