結果

問題 No.911 ラッキーソート
ユーザー knshnb
提出日時 2019-10-18 23:32:55
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 98 ms / 2,000 ms
コード長 5,259 bytes
コンパイル時間 2,724 ms
コンパイル使用メモリ 199,916 KB
実行使用メモリ 6,944 KB
最終ジャッジ日時 2024-06-25 19:56:04
合計ジャッジ時間 6,731 ms
ジャッジサーバーID
(参考情報)
judge5 / judge4
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 46
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 #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template <class T> using treap = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
using Int = long long;
#define REP(i, n) for (long long i = 0, max_i = (n); i < max_i; i++)
#define REPI(i, a, b) for (long long i = (a), max_i = (b); i < max_i; i++)
#define ALL(obj) begin(obj), end(obj)
#define RALL(obj) rbegin(obj), rend(obj)
#define fi first
#define se second
using ii = pair<Int, Int>;
vector<ii> dirs = {
{1, 0}, {0, 1}, {-1, 0}, {0, -1}, // 4
{1, 1}, {-1, 1}, {-1, -1}, {1, -1}, //
{0, 0}, //
};
Int get_msb(long long x) {
assert(x != 0);
return 63 - __builtin_clzll(x);
}
Int get_lsb(long long x) {
assert(x != 0);
return __builtin_ctzll(x);
}
template <class T> inline bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } return false; }
template <class T> inline bool chmin(T& a, const T& b) { if (a > b) { a = b; return true; } return false; }
template <class T, class S> vector<T> make_vec(size_t n, S x) { return vector<T>(n, x); }
template <class T, class... Ts> auto make_vec(size_t n, Ts... ts) { return vector<decltype(make_vec<T>(ts...))>(n, make_vec<T>(ts...)); }
// debug
template <class T> ostream& operator<<(ostream& s, const vector<T>& d) { REP (i, d.size()) s << d[i] << (i == d.size() - 1 ? "" : " "); return s; }
template <class T> ostream& operator<<(ostream& s, const vector<vector<T>>& d) { REP (i, d.size()) s << d[i] << (i == d.size() - 1 ? "" : "\n");
    return s; }
template <class T, class S> ostream& operator<<(ostream& s, const pair<T, S>& p) { s << "{" << p.first << ", " << p.second << "}"; return s; }
template <class T> ostream& operator<<(ostream& s, const set<T> m) { for (auto it = m.begin(); it != m.end(); it++) { s << *it << (next(it) == m.end
    () ? "" : "\n"); } return s; }
template <class T> ostream& operator<<(ostream& s, const multiset<T> m) { for (auto it = m.begin(); it != m.end(); it++) { s << *it << (next(it) == m
    .end() ? "" : "\n"); } return s; }
template <class T, class S> ostream& operator<<(ostream& s, const map<T, S> m) { for (auto it = m.begin(); it != m.end(); it++) { s << *it << (next
    (it) == m.end() ? "" : "\n"); } return s; }
template <class T, class S> ostream& operator<<(ostream& s, const unordered_map<T, S> m) { for (auto it = m.begin(); it != m.end(); it++) { s << *it
    << (next(it) == m.end() ? "" : "\n"); } return s; }
#ifdef _MY_DEBUG
#define dump(...) cerr << "/* " << #__VA_ARGS__ << " :[" << __LINE__ << ":" << __FUNCTION__ << "]" << endl, dump_func(__VA_ARGS__), cerr << "
        */\n\n";
#else
#define dump(...)
#define endl "\n"
#endif
void dump_func() { cerr << endl; }
template <class Head, class... Tail> void dump_func(Head&& h, Tail&&... t) { cerr << h << (sizeof...(Tail) == 0 ? "" : ", "), dump_func(forward<Tail
    >(t)...); }
struct Fast { Fast() { cin.tie(nullptr); ios::sync_with_stdio(false); } } fast;
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
constexpr Int MOD = 1000000007;
// *************** TEMPLATE END ***************
void no() {
cout << 0 << endl;
exit(0);
}
constexpr Int K = 62;
signed main() {
Int n, L, R; cin >> n >> L >> R;
vector<Int> a(n); REP (i, n) cin >> a[i];
vector<Int> bits(K, -1);
vector<bool> ok(n);
ok[n - 1] = true;
for (Int k = K - 1; k >= 0; k--) {
Int i = 0;
Int prv = -1;
while (i < n) {
Int state = -1;
while (1) {
Int bit = a[i] >> k & 1;
if (state == -1) {
state = bit;
} else if (state == 0) {
if (bit == 1) {
state = 3;
ok[i - 1] = true;
if (prv != -1 && prv != state) no();
prv = state;
}
} else if (state == 1) {
if (bit == 0) {
state = 2;
ok[i - 1] = true;
if (prv != -1 && prv != state) no();
prv = state;
}
} else if (state == 2) {
if (bit == 1) no();
} else if (state == 3) {
if (bit == 0) no();
} else assert(0);
if (ok[i++]) break;
}
}
if (prv == 2) bits[k] = 1;
if (prv == 3) bits[k] = 0;
}
REP (i, n) {
if (!ok[i]) no();
}
auto dp = make_vec<Int>(K + 1, 2, 2, 0);
dp[K][0][0] = 1;
for (Int k = K - 1; k >= 0; k--) {
Int l = L >> k & 1;
Int r = R >> k & 1;
REP (x, 2) {
REP (y, 2) {
REPI (d, x ? 0 : l, (y ? 1 : r) + 1) {
if (bits[k] == 0 && d == 1) continue;
if (bits[k] == 1 && d == 0) continue;
dp[k][x | d > l][y | d < r] += dp[k + 1][x][y];
}
}
}
}
Int ans = 0;
REP (x, 2) {
REP (y, 2) {
ans += dp[0][x][y];
}
}
cout << ans << endl;
}
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