結果
| 問題 |
No.2761 Substitute and Search
|
| コンテスト | |
| ユーザー |
👑 |
| 提出日時 | 2024-04-30 21:37:02 |
| 言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
| 結果 |
MLE
|
| 実行時間 | - |
| コード長 | 2,994 bytes |
| コンパイル時間 | 17,773 ms |
| コンパイル使用メモリ | 337,540 KB |
| 最終ジャッジ日時 | 2025-02-21 09:57:04 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 3 MLE * 1 -- * 9 |
ソースコード
#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<vector<int>> vvi;
typedef vector<vector<long long>> vvl;
typedef long double ld;
typedef pair<int, int> P;
ostream& operator<<(ostream& os, const modint& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const static_modint<m>& a) {os << a.val(); return os;}
template <int m> ostream& operator<<(ostream& os, const dynamic_modint<m>& a) {os << a.val(); return os;}
template<typename T> istream& operator>>(istream& is, vector<T>& v){int n = v.size(); assert(n > 0); rep(i, n) is >> v[i]; return is;}
template<typename U, typename T> ostream& operator<<(ostream& os, const pair<U, T>& p){os << p.first << ' ' << p.second; return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : " "); return os;}
template<typename T> ostream& operator<<(ostream& os, const vector<vector<T>>& v){int n = v.size(); rep(i, n) os << v[i] << (i == n - 1 ? "\n" : ""); return os;}
template<typename T> void chmin(T& a, T b){a = min(a, b);}
template<typename T> void chmax(T& a, T b){a = max(a, b);}
struct Trie{
using MP = unordered_map<char, int>;
vector<MP> to;
vector<int> cnt;
vector<set<int>> list;
Trie(int l) : to(1), cnt(1) {
list.resize(l + 1);
list[0].insert(0);
}
int add(const string& s) {
int v = 0;
int level = 0;
for(char c : s){
if(!to[v].count(c)){
to[v][c] = to.size();
to.push_back(MP());
cnt.push_back(0);
}
v = to[v][c];
cnt[v]++;
level++;
list[level].insert(v);
}
return v;
}
int find(const string& s){
int v = 0;
for(char c : s){
if(!to[v].count(c)) return 0;
v = to[v][c];
}
return cnt[v];
}
void dfs(int a1, int b1){
for(auto [c, a2] : to[a1]){
if(!to[b1].count(c)){
to[b1][c] = to.size();
to.push_back(MP());
cnt.push_back(0);
}
int b2 = to[b1][c];
dfs(a2, b2);
}
cnt[b1] += cnt[a1];
cnt[a1] = 0;
};
void merge(int k, char c, char d){
for(int v : list[k]){
if(!to[v].count(c)) continue;
if(to[v].count(c) && !to[v].count(d)){
to[v][d] = to[v][c];
to[v].erase(c);
continue;
}
if(to[v].count(c) && to[v].count(d)){
// merge naively
// TODO: merge-tech
int a = to[v][c];
int b = to[v][d];
if(cnt[a] <= cnt[b]){
dfs(a, b);
to[v].erase(c);
}else{
dfs(b, a);
to[v][d] = to[v][c];
to[v].erase(c);
}
continue;
}
}
}
};
int main(){
int n, l, q;
cin >> n >> l >> q;
vector<string> s(n);
cin >> s;
Trie trie(l);
rep(i, n) trie.add(s[i]);
rep(_, q){
int t;
cin >> t;
if(t == 1){
int k;
char c, d;
cin >> k >> c >> d;
trie.merge(k - 1, c, d);
}
if(t == 2){
string t;
cin >> t;
cout << trie.find(t) << "\n";
}
}
return 0;
}