結果

問題 No.2024 Xer
ユーザー hitonanodehitonanode
提出日時 2022-07-29 21:59:08
言語 C++23
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 76 ms / 2,000 ms
コード長 7,416 bytes
コンパイル時間 2,020 ms
コンパイル使用メモリ 182,668 KB
実行使用メモリ 25,584 KB
最終ジャッジ日時 2024-07-19 14:40:43
合計ジャッジ時間 4,235 ms
ジャッジサーバーID
(参考情報)
judge1 / judge3
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,812 KB
testcase_01 AC 2 ms
6,944 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 1 ms
6,944 KB
testcase_04 AC 2 ms
6,944 KB
testcase_05 AC 1 ms
6,944 KB
testcase_06 AC 2 ms
6,944 KB
testcase_07 AC 76 ms
25,584 KB
testcase_08 AC 42 ms
9,968 KB
testcase_09 AC 38 ms
6,940 KB
testcase_10 AC 38 ms
6,944 KB
testcase_11 AC 23 ms
6,940 KB
testcase_12 AC 40 ms
6,940 KB
testcase_13 AC 41 ms
6,944 KB
testcase_14 AC 63 ms
6,944 KB
testcase_15 AC 29 ms
6,944 KB
testcase_16 AC 46 ms
6,940 KB
testcase_17 AC 15 ms
6,940 KB
testcase_18 AC 27 ms
6,940 KB
testcase_19 AC 66 ms
6,940 KB
testcase_20 AC 22 ms
6,940 KB
testcase_21 AC 38 ms
6,944 KB
testcase_22 AC 37 ms
6,940 KB
testcase_23 AC 38 ms
6,944 KB
testcase_24 AC 41 ms
6,940 KB
testcase_25 AC 2 ms
6,940 KB
testcase_26 AC 2 ms
6,940 KB
testcase_27 AC 3 ms
6,944 KB
testcase_28 AC 2 ms
6,944 KB
testcase_29 AC 2 ms
6,940 KB
testcase_30 AC 2 ms
6,944 KB
testcase_31 AC 2 ms
6,940 KB
testcase_32 AC 3 ms
6,940 KB
testcase_33 AC 2 ms
6,940 KB
testcase_34 AC 2 ms
6,940 KB
testcase_35 AC 2 ms
6,940 KB
testcase_36 AC 2 ms
6,944 KB
testcase_37 AC 2 ms
6,944 KB
testcase_38 AC 2 ms
6,940 KB
testcase_39 AC 2 ms
6,940 KB
testcase_40 AC 2 ms
6,940 KB
testcase_41 AC 3 ms
6,948 KB
testcase_42 AC 2 ms
6,944 KB
testcase_43 AC 3 ms
6,940 KB
testcase_44 AC 2 ms
6,940 KB
testcase_45 AC 30 ms
6,940 KB
testcase_46 AC 8 ms
6,940 KB
testcase_47 AC 23 ms
6,940 KB
testcase_48 AC 2 ms
6,940 KB
testcase_49 AC 2 ms
6,940 KB
testcase_50 AC 2 ms
6,940 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <cmath>
#include <complex>
#include <deque>
#include <forward_list>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iostream>
#include <limits>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <tuple>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using lint = long long;
using pint = pair<int, int>;
using plint = pair<lint, lint>;
struct fast_ios { fast_ios(){ cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(20); }; } fast_ios_;
#define ALL(x) (x).begin(), (x).end()
#define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++)
#define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--)
#define REP(i, n) FOR(i,0,n)
#define IREP(i, n) IFOR(i,0,n)
template <typename T, typename V>
void ndarray(vector<T>& vec, const V& val, int len) { vec.assign(len, val); }
template <typename T, typename V, typename... Args> void ndarray(vector<T>& vec, const V& val, int len, Args... args) { vec.resize(len), for_each(begin(vec), end(vec), [&](T& v) { ndarray(v, val, args...); }); }
template <typename T> bool chmax(T &m, const T q) { return m < q ? (m = q, true) : false; }
template <typename T> bool chmin(T &m, const T q) { return m > q ? (m = q, true) : false; }
int floor_lg(long long x) { return x <= 0 ? -1 : 63 - __builtin_clzll(x); }
template <typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); }
template <typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); }
template <typename T> vector<T> sort_unique(vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; }
template <typename T> int arglb(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::lower_bound(v.begin(), v.end(), x)); }
template <typename T> int argub(const std::vector<T> &v, const T &x) { return std::distance(v.begin(), std::upper_bound(v.begin(), v.end(), x)); }
template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; }
template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <typename T, size_t sz> ostream &operator<<(ostream &os, const array<T, sz> &arr) { os << '['; for (auto v : arr) os << v << ','; os << ']'; return os; }
#if __cplusplus >= 201703L
template <typename... T> istream &operator>>(istream &is, tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; }
template <typename... T> ostream &operator<<(ostream &os, const tuple<T...> &tpl) { os << '('; std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os << ')'; }
#endif
template <typename T> ostream &operator<<(ostream &os, const deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; }
template <typename T> ostream &operator<<(ostream &os, const set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T, typename TH> ostream &operator<<(ostream &os, const unordered_set<T, TH> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; }
template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; }
template <typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
template <typename TK, typename TV, typename TH> ostream &operator<<(ostream &os, const unordered_map<TK, TV, TH> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; }
#ifdef HITONANODE_LOCAL
const string COLOR_RESET = "\033[0m", BRIGHT_GREEN = "\033[1;32m", BRIGHT_RED = "\033[1;31m", BRIGHT_CYAN = "\033[1;36m", NORMAL_CROSSED = "\033[0;9;37m", RED_BACKGROUND = "\033[1;41m", NORMAL_FAINT = "\033[0;2m";
#define dbg(x) cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << endl
#define dbgif(cond, x) ((cond) ? cerr << BRIGHT_CYAN << #x << COLOR_RESET << " = " << (x) << NORMAL_FAINT << " (L" << __LINE__ << ") " << __FILE__ << COLOR_RESET << endl : cerr)
#else
#define dbg(x) 0
#define dbgif(cond, x) 0
#endif

void bad() {
    puts("No");
    exit(0);
}

int main() {
    int N, X;
    cin >> N >> X;
    vector<int> A(N);
    cin >> A;
    if (sort_unique(A).size() != A.size()) bad();
    dbg("S");
    sort(A.begin(), A.end());

    auto rec = [&](auto &&self, vector<int> vec, int D) -> void {
        if (vec.size() <= 1) return;
        int nl = arglb(vec, 1 << D), nr = int(vec.size()) - nl;

        dbg(vec);
        if (((X >> D) & 1) == 0) {

            if (D) {
                if (nl > 1) {
                    vector<int> tmp(vec.begin(), vec.begin() + nl);
                    self(self, tmp, D - 1);
                }
                if (nr > 1) {
                    vector<int> tmp(vec.end() - nr, vec.end());
                    dbg(tmp);
                    for (auto &x : tmp) x &= ~(1 << D);
                    dbg(tmp);
                    self(self, tmp, D - 1);
                }
            }
        } else {
            if (abs(nl - nr) > 1) bad();

            bool good = false;
            if (nl >= nr) {
                vector<int> tmps;
                REP(i, nl) {
                    if (i < nl) tmps.push_back(vec[i]);
                    if (nl + i < vec.size()) tmps.push_back(vec[nl + i]);
                }
                int Y = X & ((1LL << (D + 1)) - 1);
                bool flg = true;
                REP(i, tmps.size() - 1) {
                    if (tmps[i] >= (tmps[i + 1] ^ Y)) flg = false;
                    if ((tmps[i] ^ Y) >= (tmps[i + 1])) flg = false;
                }
                good |= flg;
            }
            if (nl <= nr) {
                vector<int> tmps;
                REP(i, nr) {
                    if (nl + i < vec.size()) tmps.push_back(vec[nl + i]);
                    if (i < nl) tmps.push_back(vec[i]);
                }
                int Y = X & ((1LL << (D + 1)) - 1);
                bool flg = true;
                REP(i, tmps.size() - 1) {
                    if (tmps[i] >= (tmps[i + 1] ^ Y)) flg = false;
                    if ((tmps[i] ^ Y) >= (tmps[i + 1])) flg = false;
                }
                good |= flg;
            }

            if (!good) bad();
        }
    };

    rec(rec, A, 29);
    puts("Yes");
}
0