/* User ID: turing_13 Link: http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=370 */ /* +-+ +-+ +-+ |R| |.| |S| +-+ +-+ +-+ */ #include <bits/stdc++.h> #define pii pair <int,int> #define sc scanf #define pf printf #define Pi 2*acos(0.0) #define ms(a,b) memset(a, b, sizeof(a)) #define pb(a) push_back(a) #define MP make_pair #define db double #define ll long long #define EPS 10E-10 #define ff first #define ss second #define sqr(x) (x)*(x) #define D(x) cout<<#x " = "<<(x)<<endl #define VI vector <int> #define DBG pf("Hi\n") #define MOD 100007 #define MAX 10000 #define CIN ios_base::sync_with_stdio(0); cin.tie(0) #define SZ(a) (int)a.size() #define sf(a) scanf("%d",&a) #define sff(a,b) scanf("%d%d",&a,&b) #define sfff(a,b,c) scanf("%d%d%d",&a,&b,&c) #define loop(i,n) for(int i=0;i<n;i++) #define REP(i,a,b) for(int i=a;i<b;i++) #define TEST_CASE(t) for(int z=1;z<=t;z++) #define PRINT_CASE printf("Case %d: ",z) #define all(a) a.begin(),a.end() #define intlim 2147483648 #define inf 1000000 #define ull unsigned long long using namespace std; //map <string,int> mp; map <string,bool> visited; map <string,int> d; map< string,vector<string> >graph; string str1; vector <string> v[15]; bool test(string s1,string s2) { int cnt=0; loop(i,SZ(s1)) { if(s1[i]!=s2[i]) cnt++; if(cnt==2) return false; } return true; } int BFS(string str1, string str2) { visited[str1]=1; queue<string>Q; d[str1]=0; Q.push(str1); while(!Q.empty()) { string p=Q.front(); Q.pop(); if(p==str2) return d[str2]; for(int i=0; i<SZ(graph[p]); i++) { string q=graph[p][i]; if(visited[q]==0) { visited[q]=1; d[q]=d[p]+1; Q.push(q); } } } } int main() { ///freopen("in.txt","r",stdin); ///freopen("out.txt","w",stdout); int t; char c; sf(t); while(t--) { while(cin>>str1 && str1!="*") { int x=SZ(str1); v[x].pb(str1); loop(i,SZ(v[x])) { string temp=v[x][i]; if(test(str1,temp)) { graph[str1].pb(temp); graph[temp].pb(str1); } } } getchar(); string ss1,ss2,str2; while(1) { getline(cin,str2); if(str2=="") break; bool test=0; int xx=str2.size(); loop(i,xx) { if(str2[i]==' ') {test=1;continue;} if(!test) ss1+=str2[i]; else ss2+=str2[i]; } int ans= BFS(ss1,ss2); cout<<ss1<<" "<<ss2<<" "<<ans<<endl; visited.clear(); d.clear(); ss1.clear(); ss2.clear(); str2.clear(); } if(t) cout<<endl; } return 0; }
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