結果

問題 No.803 Very Limited Xor Subset
ユーザー miscalc
提出日時 2024-03-21 19:03:01
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 146 ms / 2,000 ms
コード長 4,851 bytes
コンパイル時間 6,131 ms
コンパイル使用メモリ 319,868 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-09-30 10:14:50
合計ジャッジ時間 9,038 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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 * 4
other AC * 43
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>
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
using pll = pair<ll, ll>;
using tlll = tuple<ll, ll, ll>;
constexpr ll INF = 1LL << 60;
template<class T> bool chmin(T& a, T b) {if (a > b) {a = b; return true;} return false;}
template<class T> bool chmax(T& a, T b) {if (a < b) {a = b; return true;} return false;}
ll safemod(ll A, ll M) {ll res = A % M; if (res < 0) res += M; return res;}
ll divfloor(ll A, ll B) {if (B < 0) A = -A, B = -B; return (A - safemod(A, B)) / B;}
ll divceil(ll A, ll B) {if (B < 0) A = -A, B = -B; return divfloor(A + B - 1, B);}
ll pow_ll(ll A, ll B) {if (A == 0 || A == 1) {return A;} if (A == -1) {return B & 1 ? -1 : 1;} ll res = 1; for (int i = 0; i < B; i++) {res *= A;}
    return res;}
ll mul_limited(ll A, ll B, ll M = INF) { return B == 0 ? 0 : A > M / B ? M : A * B; }
ll pow_limited(ll A, ll B, ll M = INF) { if (A == 0 || A == 1) {return A;} ll res = 1; for (int i = 0; i < B; i++) {if (res > M / A) return M; res *=
    A;} return res;}
template<class T> void unique(vector<T> &V) {V.erase(unique(V.begin(), V.end()), V.end());}
template<class T> void sortunique(vector<T> &V) {sort(V.begin(), V.end()); V.erase(unique(V.begin(), V.end()), V.end());}
#define FINALANS(A) do {cout << (A) << '\n'; exit(0);} while (false)
//*
#include <atcoder/all>
using namespace atcoder;
//using mint = modint998244353;
using mint = modint1000000007;
//using mint = modint;
template <class T, internal::is_static_modint_t<T> * = nullptr>
istream &operator>>(istream &is, T &a) { ll v; is >> v; a = v; return is; }
template <class T, internal::is_dynamic_modint_t<T> * = nullptr>
istream &operator>>(istream &is, T &a) { ll v; is >> v; a = v; return is; }
template <class T, internal::is_static_modint_t<T> * = nullptr>
ostream &operator<<(ostream &os, const T &a) { os << a.val(); return os; }
template <class T, internal::is_dynamic_modint_t<T> * = nullptr>
ostream &operator<<(ostream &os, const T &a) { os << a.val(); return os; }
//*/
template<class T> void printvec(const vector<T> &V) {int _n = V.size(); for (int i = 0; i < _n; i++) cout << V[i] << (i == _n - 1 ? "" : " "); cout
    << '\n';}
template<class T> void printvect(const vector<T> &V) {for (auto v : V) cout << v << '\n';}
template<class T> void printvec2(const vector<vector<T>> &V) {for (auto &v : V) printvec(v);}
template<unsigned long w>
struct mybitset : bitset<w>
{
using bitset<w>::bitset;
using bitset<w>::operator=;
mybitset(const bitset<w> &bs) { *this = bs; }
auto operator<=>(const mybitset &rhs) const
{ return (*this).to_string() <=> rhs.to_string(); }
};
template<class T = ll>
struct XorBasis : vector<T>
{
XorBasis() {}
XorBasis(const vector<T> &A)
{
for (T e : A)
add(e);
}
// e
// O(w)
bool add(T e)
{
for (T b : *this)
chmin(e, T(e ^ b));
//* get 使
for (T &b : *this)
chmin(b, T(e ^ b));
//*/
if (e != T(0))
{
(*this).emplace_back(e);
//* get 使
sort((*this).begin(), (*this).end());
//*/
return true;
}
return false;
}
// e
// O(w)
bool contains(T e) const
{
for (T b : (*this))
chmin(e, T(e ^ b));
return e == T(0);
}
// k
// () 2^size
// O(w)
T get(T k) const
{
assert(0 <= k && k < (T(1) << (*this).size()));
T res = 0;
for (int i = 0; i < (int)(*this).size(); i++)
if (k & (T(1) << i))
res ^= (*this)[i];
return res;
}
// v (index, value)
// index == ( v ) - 1
// index + 1: v
// O(w)
pair<T, T> lower_bound(T v) const
{
assert(v >= 0);
T idx = 0, val = 0;
for (int i = (int)(*this).size() - 1; i >= 0; i--)
if ((val ^ (*this)[i]) <= v)
idx ^= T(1) << i, val ^= (*this)[i];
return make_pair(idx, val);
}
// v (index, value)
// index == ( v ) - 1
// index + 1: v
// O(w)
pair<T, T> upper_bound(T v) const { return lower_bound(v - 1); }
};
int main()
{
const ll W = 330;
ll N, M, X;
cin >> N >> M >> X;
vector<mybitset<W>> A(N);
for (ll i = 0; i < N; i++)
{
ll a;
cin >> a;
A.at(i) = mybitset<W>(a);
}
mybitset<W> Y = X;
for (ll j = 0; j < M; j++)
{
ll t, l, r;
cin >> t >> l >> r;
l--;
for (ll i = l; i < r; i++)
{
A.at(i).set(30 + j);
}
Y.set(30 + j, t);
}
XorBasis<mybitset<W>> basis(A);
if (basis.contains(Y))
cout << mint(2).pow(N - (ll)basis.size()) << endl;
else
cout << 0 << endl;
}
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