結果
問題 | No.1304 あなたは基本が何か知っていますか?私は知っています. |
ユーザー |
![]() |
提出日時 | 2021-02-05 20:00:51 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 4,022 bytes |
コンパイル時間 | 2,065 ms |
コンパイル使用メモリ | 180,996 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-06-12 17:17:28 |
合計ジャッジ時間 | 13,002 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | RE * 1 |
other | WA * 9 RE * 65 |
ソースコード
#include <bits/stdc++.h>#pragma GCC target("avx")#pragma GCC optimize("O3")#pragma GCC optimize("unroll-loops")using namespace std;#define ll long long#define pint pair<int, int>#define rep(i, m, n) for (int i = m; i < n; i++)#define UE(N) N.erase(unique(N.begin(), N.end()), N.end());#define Sort(n) sort(n.begin(), n.end())#define mod 998244353#define chmin(a, b) a = (((a) > (b)) ? (b) : (a))template<typename U = unsigned, int B = 32>class lazy_binary_trie {struct node {int cnt;U lazy;node *ch[2];node() : cnt(0), lazy(0), ch{ nullptr, nullptr } {}};void push(node* t, int b) {if ((t->lazy >> (U)b) & (U)1) swap(t->ch[0], t->ch[1]);if (t->ch[0]) t->ch[0]->lazy ^= t->lazy;if (t->ch[1]) t->ch[1]->lazy ^= t->lazy;t->lazy = 0;}node* add(node* t, U val, int b = B - 1) {if (!t) t = new node;t->cnt += 1;if (b < 0) return t;push(t, b);bool f = (val >> (U)b) & (U)1;t->ch[f] = add(t->ch[f], val, b - 1);return t;}node* sub(node* t, U val, int b = B - 1) {assert(t);t->cnt -= 1;if (t->cnt == 0) return nullptr;if (b < 0) return t;push(t, b);bool f = (val >> (U)b) & (U)1;t->ch[f] = sub(t->ch[f], val, b - 1);return t;}U get_min(node* t, U val, int b = B - 1) {assert(t);if (b < 0) return 0;push(t, b);bool f = (val >> (U)b) & (U)1; f ^= !t->ch[f];return get_min(t->ch[f], val, b - 1) | ((U)f << (U)b);}U get(node* t, int k, int b = B - 1) {if (b < 0) return 0;push(t, b);int m = t->ch[0] ? t->ch[0]->cnt : 0;return k < m ? get(t->ch[0], k, b - 1) : get(t->ch[1], k - m, b - 1) | ((U)1 << (U)b);}int count_lower(node* t, U val, int b = B - 1) {if (!t || b < 0) return 0;push(t, b);bool f = (val >> (U)b) & (U)1;return (f && t->ch[0] ? t->ch[0]->cnt : 0) + count_lower(t->ch[f], val, b - 1);}node *root;public:lazy_binary_trie() : root(nullptr) {}int size() const {return root ? root->cnt : 0;}bool empty() const {return !root;}void insert(U val) {root = add(root, val);}void erase(U val) {root = sub(root, val);}void xor_all(U val) {if (root) root->lazy ^= val;}U max_element(U bias = 0) {return get_min(root, ~bias);}U min_element(U bias = 0) {return get_min(root, bias);}int lower_bound(U val) { // return idreturn count_lower(root, val);}int upper_bound(U val) { // return idreturn count_lower(root, val + 1);}U operator[](int k) {assert(0 <= k && k < size());return get(root, k);}int count(U val) {if (!root) return 0;node *t = root;for (int i = B - 1; i >= 0; i--) {push(t, i);t = t->ch[(val >> (U)i) & (U)1];if (!t) return 0;}return t->cnt;}};int N, K;vector<int> A;vector<pint> C;vector<lazy_binary_trie<int, 20>> B(262144);lazy_binary_trie<int> D;void dfs(int cnt, int x, int prev) {if(!cnt) {D.insert(x);B[prev].insert(x);C.emplace_back(pint(prev, x));}else {rep(i, 0, K) {if(A[i] == prev) continue;dfs(cnt - 1, x ^ A[i], A[i]);}}}int main() {ios::sync_with_stdio(false);cin.tie(0);int X, Y;cin >> N >> K >> X >> Y;rep(i, 0, K) cin >> A[i];dfs(N / 2, 0, -1);ll res = 0;for(auto v : C) {int w = v.first, u = v.second;D.xor_all(u);B[w].xor_all(u);res += (D.upper_bound(Y) - D.lower_bound(X)) - (B[w].upper_bound(Y) - B[w].lower_bound(X));B[w].xor_all(u);D.xor_all(u);}cout << res % mod << endl;}