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| #include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <algorithm>
#include <sstream>
#include <map>
#include <set>
#define REP(i,k,n) for(int i=k;i<n;i++)
#define rep(i,n) for(int i=0;i<n;i++)
#define INF 1<<30
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
int cnt = 0;
struct Tree {
string s;
int id;
Tree* par;
vector<Tree*> v;
Tree(Tree* par, string s, int id) : par(par), s(s), id(id) {}
void add(int i, vector<string> res) {
if(i == res.size()) return;
bool flag = true;
rep(j, v.size()) {
if(v[j]->s == res[i]) flag = false;
}
if(flag) {
cnt++;
Tree *node = new Tree(this, res[i], cnt);
v.push_back(node);
}
rep(j, v.size()) {
if(v[j]->s == res[i]) {
v[j]->add(i+1, res);
}
}
}
Tree* find(int i, vector<string> res) {
// cout << " -- in find :" << s << endl;
if(i == res.size()) {
return this;
}
if(res[i] == ".") {
if(v.size() == 0) return NULL;
return find(i+1, res);
} else if(res[i] == "..") {
if(v.size() == 0) return NULL;
if(par == NULL) return NULL;
return par->find(i+1, res);
} else if(res[i] == "") {
if(v.size() == 0) return NULL;
return find(i+1, res);
} else {
rep(j, v.size()) {
if(v[j]->s == res[i]) {
return v[j]->find(i+1, res);
}
}
return NULL;
}
}
};
vector<string> split(const string &str, char delim) {
vector<string> res;
size_t current = 0, found;
while((found = str.find_first_of(delim, current)) != string::npos) {
res.push_back(string(str, current, found - current));
current = found + 1;
}
res.push_back(string(str, current, str.size() - current));
return res;
}
int main() {
int n, m;
while(cin >> n >> m) {
if(n == 0 && m == 0) break;
cnt = 0;
Tree *root = new Tree(NULL, "root", cnt);
rep(i, n) {
string s;
cin >> s;
vector<string> ret = split(s, '/');
root->add(0, vector<string>(ret.begin()+1, ret.end()));
}
rep(q, m) {
string s, t;
cin >> s >> t;
vector<string> r = split(s, '/');
vector<string> r2 = split(t, '/');
Tree *node = root->find(0, r);
Tree *node2 = root->find(0, r2);
// if(node == NULL) cout << " node 1 : null" << endl;
// if(node2 == NULL) cout << " node 2 : null" << endl;
if(node == NULL || node2 == NULL) {
cout << "not found" << endl;
} else {
Tree *res = NULL;
if(node->v.size() == 0) {
res = node;
} else {
rep(i, node->v.size()) {
if(node->v[i]->v.size() == 0 && node->v[i]->s == "index.html") {
res = node->v[i];
}
}
}
Tree *res2 = NULL;
if(node2->v.size() == 0) {
res2 = node2;
} else {
rep(i, node2->v.size()) {
if(node2->v[i]->v.size() == 0 && node2->v[i]->s == "index.html") {
res2 = node2->v[i];
}
}
}
// if(res == NULL) cout << "NULL";
// else cout << res->s << ", " << res->id;
//
// cout << " ";
//
// if(res2 == NULL) cout << "NULL";
// else cout << res2->s << ", " << res2->id;
//
// cout << endl;
if(res == NULL || res2 == NULL) {
cout << "not found" << endl;
} else if(res->id == res2->id && res->s == res2->s) {
cout << "yes" << endl;
} else {
cout << "no" << endl;
}
}
}
}
return 0;
}
|