kyopro-lib-cpp

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:warning: util/dynamic_bitset.hpp

Depends on

Required by

Code

#pragma once

#include "../template.hpp"

struct dynamic_bitset {
    using db = dynamic_bitset;
    vector<ull> val;
    struct ref {
        ull &p;
        ll i;
        ref(ull &p, ll i) : p(p), i(i) {}
        ref &operator=(bool a) {
            if (a) {
                p |= pw(i);
            } else
                p &= ~pw(i);
            return *this;
        }
        ref &operator=(const ref &a) { return *this = a; }
        operator bool() const { return (p & pw(i)) != 0; }
        bool operator~() const { return !*this; }
        ref &flip() {
            p ^= pw(i);
            return *this;
        }
    };
    ref operator[](ll i) {
        if (val.size() <= i >> 4) val.resize((i >> 4) + 1);
        return {val[i >> 4], i & 63};
    }
    db &operator&=(const db &a) {
        if (a.val.size() < val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] &= a.val[i];
        return *this;
    }
    db &operator|=(const db &a) {
        if (a.val.size() > val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] |= a.val[i];
        return *this;
    }
    db &operator^=(const db &a) {
        if (a.val.size() > val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] ^= a.val[i];
        return *this;
    }
    ll count() const {
        ll ret = 0;
        for (ull p : val) ret += __builtin_popcountll(p);
        return ret;
    }
    friend bool operator==(const db &a, const db &b) { return (a ^ b).count() == 0; }
    friend bool operator!=(const db &a, const db &b) { return rel_ops::operator!=(a, b); }
    friend bool operator<(const db &a, const db &b) {
        for (ll i : per(max(a.val.size(), b.val.size()))) {
            ull pa = i < a.val.size() ? a.val[i] : 0;
            ull pb = i < b.val.size() ? b.val[i] : 0;
            if (pa < pb) return true;
            if (pa > pb) return false;
        }
        return false;
    }
    friend bool operator>(const db &a, const db &b) { return rel_ops::operator>(a, b); }
    friend bool operator<=(const db &a, const db &b) { return rel_ops::operator<=(a, b); }
    friend bool operator>=(const db &a, const db &b) { return rel_ops::operator>=(a, b); }
    friend db operator&(const db &a, const db &b) { return db(a) &= b; }
    friend db operator|(const db &a, const db &b) { return db(a) |= b; }
    friend db operator^(const db &a, const db &b) { return db(a) ^= b; }
};
#line 2 "util/dynamic_bitset.hpp"

#line 2 "template.hpp"

#include <bits/stdc++.h>
using namespace std;

#define all(a) begin(a), end(a)
#define rall(a) rbegin(a), rend(a)
#define uniq(a) (a).erase(unique(all(a)), (a).end())
#define t0 first
#define t1 second
using ll = long long;
using ull = unsigned long long;
using pll = pair<ll, ll>;
using vll = vector<ll>;
constexpr double pi = 3.14159265358979323846;
constexpr ll dy[9] = {0, 1, 0, -1, 1, 1, -1, -1, 0};
constexpr ll dx[9] = {1, 0, -1, 0, 1, -1, -1, 1, 0};
constexpr ll sign(ll a) { return (a > 0) - (a < 0); }
constexpr ll fdiv(ll a, ll b) { return a / b - ((a ^ b) < 0 && a % b); }
constexpr ll cdiv(ll a, ll b) { return -fdiv(-a, b); }
constexpr ll pw(ll n) { return 1ll << n; }
constexpr ll flg(ll n) { return 63 - __builtin_clzll(n); }
constexpr ll clg(ll n) { return n == 1 ? 0 : flg(n - 1) + 1; }
constexpr ll safemod(ll x, ll mod) { return (x % mod + mod) % mod; }
template <typename T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;
template <typename T> constexpr T sq(const T &a) { return a * a; }
template <typename T, typename U> constexpr bool chmax(T &a, const U &b) { return a < b ? a = b, true : false; }
template <typename T, typename U> constexpr bool chmin(T &a, const U &b) { return a > b ? a = b, true : false; }
template <typename T, typename U> ostream &operator<<(ostream &os, const pair<T, U> &a) {
    os << "(" << a.first << ", " << a.second << ")";
    return os;
}
template <typename T, typename U, typename V> ostream &operator<<(ostream &os, const tuple<T, U, V> &a) {
    os << "(" << get<0>(a) << ", " << get<1>(a) << ", " << get<2>(a) << ")";
    return os;
}
template <typename T> ostream &operator<<(ostream &os, const vector<T> &a) {
    os << "(";
    for (auto itr = a.begin(); itr != a.end(); ++itr) os << *itr << (next(itr) != a.end() ? ", " : "");
    os << ")";
    return os;
}
template <typename T> ostream &operator<<(ostream &os, const set<T> &a) {
    os << "(";
    for (auto itr = a.begin(); itr != a.end(); ++itr) os << *itr << (next(itr) != a.end() ? ", " : "");
    os << ")";
    return os;
}
template <typename T> ostream &operator<<(ostream &os, const multiset<T> &a) {
    os << "(";
    for (auto itr = a.begin(); itr != a.end(); ++itr) os << *itr << (next(itr) != a.end() ? ", " : "");
    os << ")";
    return os;
}
template <typename T, typename U> ostream &operator<<(ostream &os, const map<T, U> &a) {
    os << "(";
    for (auto itr = a.begin(); itr != a.end(); ++itr) os << *itr << (next(itr) != a.end() ? ", " : "");
    os << ")";
    return os;
}
#ifdef ONLINE_JUDGE
#define dump(...) (void(0))
#else
void debug() { cerr << endl; }
template <typename Head, typename... Tail> void debug(Head &&head, Tail &&... tail) {
    cerr << head;
    if (sizeof...(Tail)) cerr << ", ";
    debug(tail...);
}
#define dump(...) cerr << __LINE__ << ": " << #__VA_ARGS__ << " = ", debug(__VA_ARGS__)
#endif
struct rep {
    struct itr {
        ll v;
        itr(ll v) : v(v) {}
        void operator++() { ++v; }
        ll operator*() const { return v; }
        bool operator!=(itr i) const { return v < *i; }
    };
    ll l, r;
    rep(ll l, ll r) : l(l), r(r) {}
    rep(ll r) : rep(0, r) {}
    itr begin() const { return l; };
    itr end() const { return r; };
};
struct per {
    struct itr {
        ll v;
        itr(ll v) : v(v) {}
        void operator++() { --v; }
        ll operator*() const { return v; }
        bool operator!=(itr i) const { return v > *i; }
    };
    ll l, r;
    per(ll l, ll r) : l(l), r(r) {}
    per(ll r) : per(0, r) {}
    itr begin() const { return r - 1; };
    itr end() const { return l - 1; };
};
struct io_setup {
    static constexpr int PREC = 20;
    io_setup() {
        cout << fixed << setprecision(PREC);
        cerr << fixed << setprecision(PREC);
    };
} iOS;
#line 4 "util/dynamic_bitset.hpp"

struct dynamic_bitset {
    using db = dynamic_bitset;
    vector<ull> val;
    struct ref {
        ull &p;
        ll i;
        ref(ull &p, ll i) : p(p), i(i) {}
        ref &operator=(bool a) {
            if (a) {
                p |= pw(i);
            } else
                p &= ~pw(i);
            return *this;
        }
        ref &operator=(const ref &a) { return *this = a; }
        operator bool() const { return (p & pw(i)) != 0; }
        bool operator~() const { return !*this; }
        ref &flip() {
            p ^= pw(i);
            return *this;
        }
    };
    ref operator[](ll i) {
        if (val.size() <= i >> 4) val.resize((i >> 4) + 1);
        return {val[i >> 4], i & 63};
    }
    db &operator&=(const db &a) {
        if (a.val.size() < val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] &= a.val[i];
        return *this;
    }
    db &operator|=(const db &a) {
        if (a.val.size() > val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] |= a.val[i];
        return *this;
    }
    db &operator^=(const db &a) {
        if (a.val.size() > val.size()) val.resize(a.val.size());
        for (ll i : rep(a.val.size())) val[i] ^= a.val[i];
        return *this;
    }
    ll count() const {
        ll ret = 0;
        for (ull p : val) ret += __builtin_popcountll(p);
        return ret;
    }
    friend bool operator==(const db &a, const db &b) { return (a ^ b).count() == 0; }
    friend bool operator!=(const db &a, const db &b) { return rel_ops::operator!=(a, b); }
    friend bool operator<(const db &a, const db &b) {
        for (ll i : per(max(a.val.size(), b.val.size()))) {
            ull pa = i < a.val.size() ? a.val[i] : 0;
            ull pb = i < b.val.size() ? b.val[i] : 0;
            if (pa < pb) return true;
            if (pa > pb) return false;
        }
        return false;
    }
    friend bool operator>(const db &a, const db &b) { return rel_ops::operator>(a, b); }
    friend bool operator<=(const db &a, const db &b) { return rel_ops::operator<=(a, b); }
    friend bool operator>=(const db &a, const db &b) { return rel_ops::operator>=(a, b); }
    friend db operator&(const db &a, const db &b) { return db(a) &= b; }
    friend db operator|(const db &a, const db &b) { return db(a) |= b; }
    friend db operator^(const db &a, const db &b) { return db(a) ^= b; }
};
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