////  1082 代理服务器.cpp//  Jobdu////  Created by PengFei_Zheng on 03/05/2017.//  Copyright © 2017 PengFei_Zheng. All rights reserved.// #include <stdio.h>#include <iostream>#include <algorithm>#include <string.h>#include <cstring>#include <cmath>#include <climits>#define MAX_SIZE 1001#define MAX_SERVER 5001//#define debugusing namespace std; int n, m; struct Server{//define the struct of server    int x, y, z, w;    bool operator == (const Server &a) const{//reload the == operator        return (x==a.x && y==a.y && z==a.z && w==a.w);    }}; Server s1[MAX_SIZE];Server s2[MAX_SERVER]; int main(){#ifdef debug    freopen("/Users/pengfei_zheng/Desktop/input.txt", "r", stdin);#endif    while(scanf("%d",&n)!=EOF){        for(int i = 0 ; i < n ; i++){            scanf("%d.%d.%d.%d",&s1[i].x,&s1[i].y,&s1[i].z,&s1[i].w);        }        scanf("%d",&m);        for(int i = 0 ; i < m ; i++){            scanf("%d.%d.%d.%d",&s2[i].x,&s2[i].y,&s2[i].z,&s2[i].w);        }        if(1==n){//special case            int i;            for(i = 0 ; i < m ; i++){                if(s1[0]==s2[i]){                    break;                }            }            if(i<m) printf("-1\n");            else printf("0\n");        }        else{            bool loopFlag = true;            int start=0, ans = 0, idx = 0;            int maxIdx;            while(loopFlag){                maxIdx = -1;                loopFlag = false;                for(int i = 0 ; i < n ; i++){                    idx = start;                    while(idx < m && !(s1[i]==s2[idx])){                        idx++;                    }                    maxIdx = max(maxIdx,idx);// find the last appear server                }                if(maxIdx < m){ //judge whether this server can reach all the other servers                    ans++;                    loopFlag = true;                }                start =  maxIdx + 1; //update the start Idx            }            printf("%d\n",ans);        }    }    return 0;}/**************************************************************    Problem: 1082    User: zpfbuaa    Language: C++    Result: Accepted    Time:10 ms    Memory:1612 kb****************************************************************/