結果
| 問題 |
No.2761 Substitute and Search
|
| コンテスト | |
| ユーザー |
iiljj
|
| 提出日時 | 2024-05-17 22:44:50 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 964 ms / 4,000 ms |
| コード長 | 18,851 bytes |
| コンパイル時間 | 2,178 ms |
| コンパイル使用メモリ | 180,852 KB |
| 実行使用メモリ | 77,440 KB |
| 最終ジャッジ日時 | 2024-12-20 14:46:46 |
| 合計ジャッジ時間 | 9,312 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 |
ソースコード
/* #region Head */
// #include <bits/stdc++.h>
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert> // assert.h
#include <cmath> // math.h
#include <cstring>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <memory>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pll = pair<ll, ll>;
template <class T> using vc = vector<T>;
template <class T> using vvc = vc<vc<T>>;
using vll = vc<ll>;
using vvll = vvc<ll>;
using vld = vc<ld>;
using vvld = vvc<ld>;
using vs = vc<string>;
using vvs = vvc<string>;
template <class T, class U> using um = unordered_map<T, U>;
template <class T> using pq = priority_queue<T>;
template <class T> using pqa = priority_queue<T, vc<T>, greater<T>>;
template <class T> using us = unordered_set<T>;
#define TREP(T, i, m, n) for (T i = (m), i##_len = (T)(n); i < i##_len; ++(i))
#define TREPM(T, i, m, n) for (T i = (m), i##_max = (T)(n); i <= i##_max; ++(i))
#define TREPR(T, i, m, n) for (T i = (m), i##_min = (T)(n); i >= i##_min; --(i))
#define TREPD(T, i, m, n, d) \
for (T i = (m), i##_len = (T)(n); i < i##_len; i += (d))
#define TREPMD(T, i, m, n, d) \
for (T i = (m), i##_max = (T)(n); i <= i##_max; i += (d))
#define REP(i, m, n) for (ll i = (m), i##_len = (ll)(n); i < i##_len; ++(i))
#define REPM(i, m, n) for (ll i = (m), i##_max = (ll)(n); i <= i##_max; ++(i))
#define REPR(i, m, n) for (ll i = (m), i##_min = (ll)(n); i >= i##_min; --(i))
#define REPD(i, m, n, d) \
for (ll i = (m), i##_len = (ll)(n); i < i##_len; i += (d))
#define REPMD(i, m, n, d) \
for (ll i = (m), i##_max = (ll)(n); i <= i##_max; i += (d))
#define REPI(itr, ds) for (auto itr = ds.begin(); itr != ds.end(); itr++)
#define REPIR(itr, ds) for (auto itr = ds.rbegin(); itr != ds.rend(); itr++)
#define ALL(x) begin(x), end(x)
#define SIZE(x) ((ll)(x).size())
#define ISIZE(x) ((int)(x).size())
#define PERM(c) \
sort(ALL(c)); \
for (bool c##p = 1; c##p; c##p = next_permutation(ALL(c)))
#define UNIQ(v) v.erase(unique(ALL(v)), v.end());
#define CEIL(a, b) (((a) + (b)-1) / (b))
#define endl '\n'
constexpr ll INF = 1'010'000'000'000'000'017LL;
constexpr int IINF = 1'000'000'007LL;
constexpr ll MOD = 1'000'000'007LL; // 1e9 + 7
// constexpr ll MOD = 998244353;
constexpr ld EPS = 1e-12;
constexpr ld PI = 3.14159265358979323846;
// 前方宣言
template <typename T> istream &operator>>(istream &is, vc<T> &vec);
template <typename T> ostream &operator<<(ostream &os, const vc<T> &vec);
template <typename T> ostream &operator>>(ostream &os, const vc<T> &vec);
template <typename T, size_t _Nm>
istream &operator>>(istream &is, array<T, _Nm> &arr);
template <typename T, size_t _Nm>
ostream &operator<<(ostream &os, const array<T, _Nm> &arr);
template <typename T, size_t _Nm>
ostream &operator>>(ostream &os, const array<T, _Nm> &arr);
template <typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &pair_var);
template <typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &pair_var);
template <class T> ostream &out_iter(ostream &os, const T &map_var);
template <typename T, typename U>
ostream &operator<<(ostream &os, const map<T, U> &map_var);
template <typename T, typename U>
ostream &operator<<(ostream &os, const um<T, U> &map_var);
template <typename T> ostream &operator<<(ostream &os, const set<T> &set_var);
template <typename T> ostream &operator<<(ostream &os, const us<T> &set_var);
template <typename T> ostream &operator<<(ostream &os, const pq<T> &pq_var);
template <typename T>
ostream &operator<<(ostream &os, const queue<T> &queue_var);
template <typename T> ostream &operator<<(ostream &os, const stack<T> &stk_var);
template <typename T>
istream &operator>>(istream &is, vc<T> &vec) { // vector 入力
for (T &x : vec)
is >> x;
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vc<T> &vec) { // vector 出力 (for dump)
os << "{";
REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "" : ", ");
os << "}";
return os;
}
template <typename T>
ostream &operator>>(ostream &os, const vc<T> &vec) { // vector 出力 (inline)
REP(i, 0, SIZE(vec)) os << vec[i] << (i == i_len - 1 ? "\n" : " ");
return os;
}
template <typename T, size_t _Nm>
istream &operator>>(istream &is, array<T, _Nm> &arr) { // array 入力
REP(i, 0, SIZE(arr)) is >> arr[i];
return is;
}
template <typename T, size_t _Nm>
ostream &operator<<(ostream &os,
const array<T, _Nm> &arr) { // array 出力 (for dump)
os << "{";
REP(i, 0, SIZE(arr)) os << arr[i] << (i == i_len - 1 ? "" : ", ");
os << "}";
return os;
}
template <typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &pair_var) { // pair 入力
is >> pair_var.first >> pair_var.second;
return is;
}
template <typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &pair_var) { // pair 出力
os << "(" << pair_var.first << ", " << pair_var.second << ")";
return os;
}
// map, um, set, us 出力
template <class T> ostream &out_iter(ostream &os, const T &map_var) {
os << "{";
REPI(itr, map_var) {
os << *itr;
auto itrcp = itr;
if (++itrcp != map_var.end())
os << ", ";
}
return os << "}";
}
template <typename T, typename U>
ostream &operator<<(ostream &os, const map<T, U> &map_var) {
return out_iter(os, map_var);
}
template <typename T, typename U>
ostream &operator<<(ostream &os, const um<T, U> &map_var) {
os << "{";
REPI(itr, map_var) {
auto [key, value] = *itr;
os << "(" << key << ", " << value << ")";
auto itrcp = itr;
if (++itrcp != map_var.end())
os << ", ";
}
os << "}";
return os;
}
template <typename T> ostream &operator<<(ostream &os, const set<T> &set_var) {
return out_iter(os, set_var);
}
template <typename T> ostream &operator<<(ostream &os, const us<T> &set_var) {
return out_iter(os, set_var);
}
template <typename T> ostream &operator<<(ostream &os, const pq<T> &pq_var) {
pq<T> pq_cp(pq_var);
os << "{";
if (!pq_cp.empty()) {
os << pq_cp.top(), pq_cp.pop();
while (!pq_cp.empty())
os << ", " << pq_cp.top(), pq_cp.pop();
}
return os << "}";
}
// tuple 出力
template <size_t N = 0, bool end_line = false, typename... Args>
ostream &operator<<(ostream &os, tuple<Args...> &a) {
if constexpr (N < std::tuple_size_v<tuple<Args...>>) {
os << get<N>(a);
if constexpr (N + 1 < std::tuple_size_v<tuple<Args...>>) {
os << ' ';
} else if constexpr (end_line) {
os << '\n';
}
return operator<< <N + 1, end_line>(os, a);
}
return os;
}
template <typename... Args> void print_tuple(tuple<Args...> &a) {
operator<< <0, true>(std::cout, a);
}
void pprint() { std::cout << endl; }
template <class Head, class... Tail> void pprint(Head &&head, Tail &&...tail) {
std::cout << head;
if (sizeof...(Tail) > 0)
std::cout << ' ';
pprint(move(tail)...);
}
// dump
#define DUMPOUT cerr
void dump_func() { DUMPOUT << endl; }
template <class Head, class... Tail>
void dump_func(Head &&head, Tail &&...tail) {
DUMPOUT << head;
if (sizeof...(Tail) > 0)
DUMPOUT << ", ";
dump_func(move(tail)...);
}
// chmax (更新「される」かもしれない値が前)
template <typename T, typename U, typename Comp = less<>>
bool chmax(T &xmax, const U &x, Comp comp = {}) {
if (comp(xmax, x)) {
xmax = x;
return true;
}
return false;
}
// chmin (更新「される」かもしれない値が前)
template <typename T, typename U, typename Comp = less<>>
bool chmin(T &xmin, const U &x, Comp comp = {}) {
if (comp(x, xmin)) {
xmin = x;
return true;
}
return false;
}
// ローカル用
#ifndef ONLINE_JUDGE
#define DEBUG_
#endif
#ifndef MYLOCAL
#undef DEBUG_
#endif
#ifdef DEBUG_
#define DEB
#define dump(...) \
DUMPOUT << " " << string(#__VA_ARGS__) << ": " \
<< "[" << to_string(__LINE__) << ":" << __FUNCTION__ << "]" \
<< endl \
<< " ", \
dump_func(__VA_ARGS__)
#else
#define DEB if (false)
#define dump(...)
#endif
#define VAR(type, ...) \
type __VA_ARGS__; \
assert((std::cin >> __VA_ARGS__));
template <typename T> istream &operator,(istream &is, T &rhs) {
return is >> rhs;
}
template <typename T> ostream &operator,(ostream &os, const T &rhs) {
return os << ' ' << rhs;
}
struct AtCoderInitialize {
static constexpr int IOS_PREC = 15;
static constexpr bool AUTOFLUSH = false;
AtCoderInitialize() {
ios_base::sync_with_stdio(false), std::cin.tie(nullptr),
std::cout.tie(nullptr);
std::cout << fixed << setprecision(IOS_PREC);
if (AUTOFLUSH)
std::cout << unitbuf;
}
} ATCODER_INITIALIZE;
void Yn(bool p) { std::cout << (p ? "Yes" : "No") << endl; }
void YN(bool p) { std::cout << (p ? "YES" : "NO") << endl; }
template <typename T> constexpr void operator--(vc<T> &v, int) noexcept {
for (int i = 0; i < ISIZE(v); ++i)
v[i]--;
}
template <typename T> constexpr void operator++(vc<T> &v, int) noexcept {
for (int i = 0; i < ISIZE(v); ++i)
v[i]++;
}
/* #endregion */
// #include <atcoder/all>
// using namespace atcoder;
/* #region dynamic_rolling_hash */
inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }
inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }
// 【フェニック木(アーベル群)】
/*
* fenwick_tree<S, op, o, inv>(int n) : O(n)
* a[0..n) = o() で初期化する.要素はアーベル群 (S, op, o, inv)
*の元とする.
*
* fenwick_tree<S, op, o, inv>(vS a) : O(n)
* 配列 a[0..n) で初期化する.
*
* set(int i, S x) : O(log n)
* a[i] = x とする.
*
* S get(int i) : O(log n)
* a[i] を返す.
*
* S sum(int l, int r) : O(log n)
* Σa[l..r) を返す.空なら o() を返す.
*
* add(int i, S x) : O(log n)
* a[i] += x とする.
*
* int max_right(function<bool(S)>& f) : O(log n)
* f( Σa[0..r) ) = true となる最大の r を返す.
* 制約:f( o() ) = true,f は単調
*/
template <class S, S (*op)(S, S), S (*o)(), S (*inv)(S)> class fenwick_tree {
// 参考:https://algo-logic.info/binary-indexed-tree/
// ノードの個数(要素数 + 1)
int n;
// v[i] : Σa[*..i] の値(i:1-indexed,v[0] は不使用)
vector<S> v;
// Σa[1..r] を返す.空なら o() を返す.(r:1-indexed)
S sum_sub(int r) const {
S res = o();
// 根に向かって累積 op() をとっていく.
while (r > 0) {
res = op(res, v[r]);
// r の最下位ビットから 1 を減算することで次の位置を得る.
r -= r & -r;
}
return res;
}
public:
// a[0..n) = o() で初期化する.
fenwick_tree(int n_) : n(n_ + 1), v(n, o()) {}
// 配列 a[0..n) で初期化する.
fenwick_tree(const vector<S> &a) : n(ISIZE(a) + 1), v(n) {
// verify : https://judge.yosupo.jp/problem/point_add_range_sum
// 配列の値を仮登録する.
REP(i, 0, n - 1) v[i + 1] = a[i];
// 正しい値になるよう根に向かって累積 op() をとっていく.
for (int pow2 = 1; 2 * pow2 < n; pow2 *= 2) {
for (int i = 2 * pow2; i < n; i += 2 * pow2) {
v[i] = op(v[i], v[i - pow2]);
}
}
}
fenwick_tree() : n(0) {}
// a[i] = x とする.(i : 0-indexed)
void set(int i, S x) {
// 差分を求める.
S d = op(x, inv(get(i)));
add(i, d);
}
// a[i] を返す.(i : 0-indexed)
S get(int i) const { return sum(i, i + 1); }
// Σa[l..r) を返す.空なら o() を返す.(l, r : 0-indexed)
S sum(int l, int r) const {
// verify : https://judge.yosupo.jp/problem/point_add_range_sum
if (l >= r)
return o();
// 0-indexed での半開区間 [l, r) は,
// 1-indexed での閉区間 [l + 1, r] に対応する.
// よって閉区間 [1, r] の総和から閉区間 [1, l] の総和を引けば良い.
return op(sum_sub(r), inv(sum_sub(l)));
}
// a[i] += x とする.(i : 0-indexed)
void add(int i, S x) {
// verify : https://judge.yosupo.jp/problem/point_add_range_sum
// i を 1-indexed に直す.
i++;
// 根に向かって値を op() していく.
while (i < n) {
v[i] = op(v[i], x);
// i の最下位ビットに 1 を加算することで次の位置を得る.
i += i & -i;
}
}
// f( Σa[0..r) ) = true となる最大の r を返す.(r : 0-indexed)
int max_right(const function<bool(S)> &f) const {
// verify : https://www.spoj.com/problems/ALLIN1/
S x = o();
// 注目している閉区間は [l+1, r] で幅は len
int l = 0;
for (int len = 1 << msb(n - 1); len > 0; len = len >> 1) {
int r = l + len;
if (r < n && f(op(x, v[r]))) {
x = op(x, v[r]);
l = r;
}
}
return l;
}
#ifdef _MSC_VER
friend ostream &operator<<(ostream &os, const fenwick_tree &ft) {
rep(i, ft.n - 1) { os << ft.get(i) << " "; }
return os;
}
#endif
};
// 【動的ローリングハッシュ(列)】
/*
* Rolling_hash<STR>(STR s) : O(n)
* 列 s[0..n) で初期化する.
* 制約:STR は string,vector<T> など.ll 範囲の負数は扱えない.
*
* ull get(int l, int r) : O(log n)
* 部分文字列 s[l..r) のハッシュ値を返す(空なら 0)
*
* void set(int i, ull x) : O(log n)
* s[i] = x とする.
*
* 利用:【フェニック木(アーベル群)】
*/
constexpr ull opdrh(ull x, ull y) {
ull a = x + y, ah = a >> 61, al = a & ((1ULL << 61) - 1), res = ah + al;
if (res >= ((1ULL << 61) - 1))
res -= ((1ULL << 61) - 1);
return res;
}
constexpr ull odrh() { return 0ULL; }
constexpr ull invdrh(ull a) { return ((1ULL << 61) - 1) ^ a; }
template <class STR> class dynamic_rolling_hash {
// 参考 : https://qiita.com/keymoon/items/11fac5627672a6d6a9f6
static constexpr ull MASK30 = (1ULL << 30) - 1;
static constexpr ull MASK31 = (1ULL << 31) - 1;
static constexpr ull MOD = (1ULL << 61) - 1; // 法(素数)
// a mod (2^61 - 1) を返す.
inline ull get_mod(ull a) const {
ull ah = a >> 61, al = a & MOD;
ull res = ah + al;
if (res >= MOD)
res -= MOD;
return res;
}
// x ≡ a b mod (2^61 - 1) なる x < 2^63 を返す(ただし a, b < 2^61)
inline ull mul(ull a, ull b) const {
ull ah = a >> 31, al = a & MASK31;
ull bh = b >> 31, bl = b & MASK31;
ull c = ah * bl + bh * al;
ull ch = c >> 30, cl = c & MASK30;
ull term1 = 2 * ah * bh;
ull term2 = ch + (cl << 31);
ull term3 = al * bl;
return term1 + term2 + term3; // < 2^63
}
static constexpr ull BASE = 1234567891011; // 適当な基数
static constexpr ull BASE_INV = 212042116942762790ULL;
static constexpr ull SHIFT = 4295090752; // 適当なシフト
// 列の長さ
int n;
// powB[i] : BASE^i
vector<ull> powB, powB_inv;
// v[i] : (s[i] + SHIFT) BASE^(-i)
fenwick_tree<ull, opdrh, odrh, invdrh> v;
public:
// 列 s[0..n) で初期化する.
dynamic_rolling_hash(const STR &s)
: n(ISIZE(s)), powB(n + 1), powB_inv(n + 1) {
// verify :
// https://mojacoder.app/users/Tonegawac/problems/dynamic_string_point_set
powB[0] = powB_inv[0] = 1;
REP(i, 0, n) {
powB[i + 1] = get_mod(mul(powB[i], BASE));
powB_inv[i + 1] = get_mod(mul(powB_inv[i], BASE_INV));
}
vector<ull> ini(n);
REP(i, 0, n) ini[i] = get_mod(mul((ull)s[i] + SHIFT, powB_inv[i]));
v = fenwick_tree<ull, opdrh, odrh, invdrh>(ini);
}
dynamic_rolling_hash() : n(0) {}
// s[l..r) のハッシュ値の取得
ull get(int l, int r) const {
// verify :
// https://mojacoder.app/users/Tonegawac/problems/dynamic_string_point_set
chmax(l, 0);
chmin(r, n);
if (l >= r)
return 0;
return get_mod(mul(v.sum(l, r), powB[r - 1]));
}
// s[i] = x とする.
void set(int i, ull x) {
// verify :
// https://mojacoder.app/users/Tonegawac/problems/dynamic_string_point_set
assert(0 <= i && i < n);
v.set(i, get_mod(mul(x + SHIFT, powB_inv[i])));
}
};
/* #endregion */
// Problem
void solve() {
VAR(ll, n, l, q);
vs s(n);
cin >> s;
vc<dynamic_rolling_hash<string>> drhs(n);
REP(i, 0, n) {
drhs[i] = dynamic_rolling_hash<string>(s[i]); //
}
REP(qi, 0, q) {
VAR(ll, type);
if (type == 1) {
VAR(ll, k);
VAR(char, c, d);
--k;
REP(i, 0, n) {
if (s[i][k] == c) {
drhs[i].set(k, d);
s[i][k] = d;
}
}
} else {
VAR(string, t);
dynamic_rolling_hash<string> drh(t);
const ull needle = drh.get(0, SIZE(t));
ll ans = 0;
REP(i, 0, n) {
const ull result = drhs[i].get(0, SIZE(t));
if (result == needle) {
++ans;
}
}
pprint(ans);
}
}
}
// entry point
int main() {
solve();
return 0;
}
iiljj