verify/verify-unit-test/segment-tree-beats.test.cpp

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Last update: 2024-04-28 09:13:11+09:00
Problem: https://judge.yosupo.jp/problem/aplusb

Depends on

Code

#define PROBLEM "https://judge.yosupo.jp/problem/aplusb"
//
#include "../../template/template.hpp"
//
#include "../../segment-tree/segment-tree-beats.hpp"

using namespace Nyaan;

#include "../../misc/rng.hpp"
void verify(int n, int coeff = 100) {
  vl a(n);
  rep(i, n) a[i] = randint(-TEN(10), TEN(10));

  AngelBeats seg(a);
  int q = n * n * coeff;
  while (q--) {
    int cmd = randint(0, 7);
    if (cmd == 3) cmd = randint(0, 7);
    int l, r;
    do {
      l = randint(0, n);
      r = randint(0, n + 1);
    } while (l > r);
    i64 x = randint(-TEN(10), TEN(10));
    if (cmd == 0) {
      // range chmin
      seg.range_chmin(l, r, x);
      for (int i = l; i < r; i++) a[i] = min(a[i], x);
    } else if (cmd == 1) {
      // range chmax
      seg.range_chmax(l, r, x);
      for (int i = l; i < r; i++) a[i] = max(a[i], x);
    } else if (cmd == 2) {
      // range add
      seg.range_add(l, r, x);
      for (int i = l; i < r; i++) a[i] += x;
    } else if (cmd == 3) {
      // range update
      seg.range_update(l, r, x);
      for (int i = l; i < r; i++) a[i] = x;
    } else if (cmd == 4) {
      // range min
      ll s1 = seg.range_min(l, r);
      ll s2 = seg.INF;
      for (int i = l; i < r; i++) s2 = min(s2, a[i]);
      assert(s1 == s2 && "range min");
    } else if (cmd == 5) {
      // range max
      ll s1 = seg.range_max(l, r);
      ll s2 = -seg.INF;
      for (int i = l; i < r; i++) s2 = max(s2, a[i]);
      assert(s1 == s2 && "range max");
    } else if (cmd == 6) {
      // range sum
      ll s1 = seg.range_sum(l, r);
      ll s2 = 0;
      for (int i = l; i < r; i++) s2 += a[i];
      assert(s1 == s2 && "range sum");
    }
  }
}

void Nyaan::solve() {
  int a, b;
  cin >> a >> b;
  cout << (a + b) << endl;

  verify(1);
  verify(2);
  verify(63);
  verify(64);
  verify(65);
}

#line 1 "verify/verify-unit-test/segment-tree-beats.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/aplusb"
//
#line 2 "template/template.hpp"
using namespace std;

// intrinstic
#include <immintrin.h>

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cctype>
#include <cfenv>
#include <cfloat>
#include <chrono>
#include <cinttypes>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdarg>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <deque>
#include <fstream>
#include <functional>
#include <initializer_list>
#include <iomanip>
#include <ios>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <stack>
#include <streambuf>
#include <string>
#include <tuple>
#include <type_traits>
#include <typeinfo>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

// utility
#line 1 "template/util.hpp"
namespace Nyaan {
using ll = long long;
using i64 = long long;
using u64 = unsigned long long;
using i128 = __int128_t;
using u128 = __uint128_t;

template <typename T>
using V = vector<T>;
template <typename T>
using VV = vector<vector<T>>;
using vi = vector<int>;
using vl = vector<long long>;
using vd = V<double>;
using vs = V<string>;
using vvi = vector<vector<int>>;
using vvl = vector<vector<long long>>;
template <typename T>
using minpq = priority_queue<T, vector<T>, greater<T>>;

template <typename T, typename U>
struct P : pair<T, U> {
  template <typename... Args>
  P(Args... args) : pair<T, U>(args...) {}

  using pair<T, U>::first;
  using pair<T, U>::second;

  P &operator+=(const P &r) {
    first += r.first;
    second += r.second;
    return *this;
  }
  P &operator-=(const P &r) {
    first -= r.first;
    second -= r.second;
    return *this;
  }
  P &operator*=(const P &r) {
    first *= r.first;
    second *= r.second;
    return *this;
  }
  template <typename S>
  P &operator*=(const S &r) {
    first *= r, second *= r;
    return *this;
  }
  P operator+(const P &r) const { return P(*this) += r; }
  P operator-(const P &r) const { return P(*this) -= r; }
  P operator*(const P &r) const { return P(*this) *= r; }
  template <typename S>
  P operator*(const S &r) const {
    return P(*this) *= r;
  }
  P operator-() const { return P{-first, -second}; }
};

using pl = P<ll, ll>;
using pi = P<int, int>;
using vp = V<pl>;

constexpr int inf = 1001001001;
constexpr long long infLL = 4004004004004004004LL;

template <typename T>
int sz(const T &t) {
  return t.size();
}

template <typename T, typename U>
inline bool amin(T &x, U y) {
  return (y < x) ? (x = y, true) : false;
}
template <typename T, typename U>
inline bool amax(T &x, U y) {
  return (x < y) ? (x = y, true) : false;
}

template <typename T>
inline T Max(const vector<T> &v) {
  return *max_element(begin(v), end(v));
}
template <typename T>
inline T Min(const vector<T> &v) {
  return *min_element(begin(v), end(v));
}
template <typename T>
inline long long Sum(const vector<T> &v) {
  return accumulate(begin(v), end(v), 0LL);
}

template <typename T>
int lb(const vector<T> &v, const T &a) {
  return lower_bound(begin(v), end(v), a) - begin(v);
}
template <typename T>
int ub(const vector<T> &v, const T &a) {
  return upper_bound(begin(v), end(v), a) - begin(v);
}

constexpr long long TEN(int n) {
  long long ret = 1, x = 10;
  for (; n; x *= x, n >>= 1) ret *= (n & 1 ? x : 1);
  return ret;
}

template <typename T, typename U>
pair<T, U> mkp(const T &t, const U &u) {
  return make_pair(t, u);
}

template <typename T>
vector<T> mkrui(const vector<T> &v, bool rev = false) {
  vector<T> ret(v.size() + 1);
  if (rev) {
    for (int i = int(v.size()) - 1; i >= 0; i--) ret[i] = v[i] + ret[i + 1];
  } else {
    for (int i = 0; i < int(v.size()); i++) ret[i + 1] = ret[i] + v[i];
  }
  return ret;
};

template <typename T>
vector<T> mkuni(const vector<T> &v) {
  vector<T> ret(v);
  sort(ret.begin(), ret.end());
  ret.erase(unique(ret.begin(), ret.end()), ret.end());
  return ret;
}

template <typename F>
vector<int> mkord(int N, F f) {
  vector<int> ord(N);
  iota(begin(ord), end(ord), 0);
  sort(begin(ord), end(ord), f);
  return ord;
}

template <typename T>
vector<int> mkinv(vector<T> &v) {
  int max_val = *max_element(begin(v), end(v));
  vector<int> inv(max_val + 1, -1);
  for (int i = 0; i < (int)v.size(); i++) inv[v[i]] = i;
  return inv;
}

vector<int> mkiota(int n) {
  vector<int> ret(n);
  iota(begin(ret), end(ret), 0);
  return ret;
}

template <typename T>
T mkrev(const T &v) {
  T w{v};
  reverse(begin(w), end(w));
  return w;
}

template <typename T>
bool nxp(vector<T> &v) {
  return next_permutation(begin(v), end(v));
}

// 返り値の型は入力の T に依存
// i 要素目 : [0, a[i])
template <typename T>
vector<vector<T>> product(const vector<T> &a) {
  vector<vector<T>> ret;
  vector<T> v;
  auto dfs = [&](auto rc, int i) -> void {
    if (i == (int)a.size()) {
      ret.push_back(v);
      return;
    }
    for (int j = 0; j < a[i]; j++) v.push_back(j), rc(rc, i + 1), v.pop_back();
  };
  dfs(dfs, 0);
  return ret;
}

// F : function(void(T&)), mod を取る操作
// T : 整数型のときはオーバーフローに注意する
template <typename T>
T Power(T a, long long n, const T &I, const function<void(T &)> &f) {
  T res = I;
  for (; n; f(a = a * a), n >>= 1) {
    if (n & 1) f(res = res * a);
  }
  return res;
}
// T : 整数型のときはオーバーフローに注意する
template <typename T>
T Power(T a, long long n, const T &I) {
  return Power(a, n, I, function<void(T &)>{[](T &) -> void {}});
}

}  // namespace Nyaan
#line 58 "template/template.hpp"

// bit operation
#line 1 "template/bitop.hpp"
namespace Nyaan {
__attribute__((target("popcnt"))) inline int popcnt(const u64 &a) {
  return _mm_popcnt_u64(a);
}
inline int lsb(const u64 &a) { return a ? __builtin_ctzll(a) : 64; }
inline int ctz(const u64 &a) { return a ? __builtin_ctzll(a) : 64; }
inline int msb(const u64 &a) { return a ? 63 - __builtin_clzll(a) : -1; }
template <typename T>
inline int gbit(const T &a, int i) {
  return (a >> i) & 1;
}
template <typename T>
inline void sbit(T &a, int i, bool b) {
  if (gbit(a, i) != b) a ^= T(1) << i;
}
constexpr long long PW(int n) { return 1LL << n; }
constexpr long long MSK(int n) { return (1LL << n) - 1; }
}  // namespace Nyaan
#line 61 "template/template.hpp"

// inout
#line 1 "template/inout.hpp"
namespace Nyaan {

template <typename T, typename U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
  os << p.first << " " << p.second;
  return os;
}
template <typename T, typename U>
istream &operator>>(istream &is, pair<T, U> &p) {
  is >> p.first >> p.second;
  return is;
}

template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
  int s = (int)v.size();
  for (int i = 0; i < s; i++) os << (i ? " " : "") << v[i];
  return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
  for (auto &x : v) is >> x;
  return is;
}

istream &operator>>(istream &is, __int128_t &x) {
  string S;
  is >> S;
  x = 0;
  int flag = 0;
  for (auto &c : S) {
    if (c == '-') {
      flag = true;
      continue;
    }
    x *= 10;
    x += c - '0';
  }
  if (flag) x = -x;
  return is;
}

istream &operator>>(istream &is, __uint128_t &x) {
  string S;
  is >> S;
  x = 0;
  for (auto &c : S) {
    x *= 10;
    x += c - '0';
  }
  return is;
}

ostream &operator<<(ostream &os, __int128_t x) {
  if (x == 0) return os << 0;
  if (x < 0) os << '-', x = -x;
  string S;
  while (x) S.push_back('0' + x % 10), x /= 10;
  reverse(begin(S), end(S));
  return os << S;
}
ostream &operator<<(ostream &os, __uint128_t x) {
  if (x == 0) return os << 0;
  string S;
  while (x) S.push_back('0' + x % 10), x /= 10;
  reverse(begin(S), end(S));
  return os << S;
}

void in() {}
template <typename T, class... U>
void in(T &t, U &...u) {
  cin >> t;
  in(u...);
}

void out() { cout << "\n"; }
template <typename T, class... U, char sep = ' '>
void out(const T &t, const U &...u) {
  cout << t;
  if (sizeof...(u)) cout << sep;
  out(u...);
}

struct IoSetupNya {
  IoSetupNya() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(15);
    cerr << fixed << setprecision(7);
  }
} iosetupnya;

}  // namespace Nyaan
#line 64 "template/template.hpp"

// debug
#line 1 "template/debug.hpp"
namespace DebugImpl {

template <typename U, typename = void>
struct is_specialize : false_type {};
template <typename U>
struct is_specialize<
    U, typename conditional<false, typename U::iterator, void>::type>
    : true_type {};
template <typename U>
struct is_specialize<
    U, typename conditional<false, decltype(U::first), void>::type>
    : true_type {};
template <typename U>
struct is_specialize<U, enable_if_t<is_integral<U>::value, void>> : true_type {
};

void dump(const char& t) { cerr << t; }

void dump(const string& t) { cerr << t; }

void dump(const bool& t) { cerr << (t ? "true" : "false"); }

void dump(__int128_t t) {
  if (t == 0) cerr << 0;
  if (t < 0) cerr << '-', t = -t;
  string S;
  while (t) S.push_back('0' + t % 10), t /= 10;
  reverse(begin(S), end(S));
  cerr << S;
}

void dump(__uint128_t t) {
  if (t == 0) cerr << 0;
  string S;
  while (t) S.push_back('0' + t % 10), t /= 10;
  reverse(begin(S), end(S));
  cerr << S;
}

template <typename U,
          enable_if_t<!is_specialize<U>::value, nullptr_t> = nullptr>
void dump(const U& t) {
  cerr << t;
}

template <typename T>
void dump(const T& t, enable_if_t<is_integral<T>::value>* = nullptr) {
  string res;
  if (t == Nyaan::inf) res = "inf";
  if constexpr (is_signed<T>::value) {
    if (t == -Nyaan::inf) res = "-inf";
  }
  if constexpr (sizeof(T) == 8) {
    if (t == Nyaan::infLL) res = "inf";
    if constexpr (is_signed<T>::value) {
      if (t == -Nyaan::infLL) res = "-inf";
    }
  }
  if (res.empty()) res = to_string(t);
  cerr << res;
}

template <typename T, typename U>
void dump(const pair<T, U>&);
template <typename T>
void dump(const pair<T*, int>&);

template <typename T>
void dump(const T& t,
          enable_if_t<!is_void<typename T::iterator>::value>* = nullptr) {
  cerr << "[ ";
  for (auto it = t.begin(); it != t.end();) {
    dump(*it);
    cerr << (++it == t.end() ? "" : ", ");
  }
  cerr << " ]";
}

template <typename T, typename U>
void dump(const pair<T, U>& t) {
  cerr << "( ";
  dump(t.first);
  cerr << ", ";
  dump(t.second);
  cerr << " )";
}

template <typename T>
void dump(const pair<T*, int>& t) {
  cerr << "[ ";
  for (int i = 0; i < t.second; i++) {
    dump(t.first[i]);
    cerr << (i == t.second - 1 ? "" : ", ");
  }
  cerr << " ]";
}

void trace() { cerr << endl; }
template <typename Head, typename... Tail>
void trace(Head&& head, Tail&&... tail) {
  cerr << " ";
  dump(head);
  if (sizeof...(tail) != 0) cerr << ",";
  trace(forward<Tail>(tail)...);
}

}  // namespace DebugImpl

#ifdef NyaanDebug
#define trc(...)                            \
  do {                                      \
    cerr << "## " << #__VA_ARGS__ << " = "; \
    DebugImpl::trace(__VA_ARGS__);          \
  } while (0)
#else
#define trc(...) (void(0))
#endif

#ifdef NyaanLocal
#define trc2(...)                           \
  do {                                      \
    cerr << "## " << #__VA_ARGS__ << " = "; \
    DebugImpl::trace(__VA_ARGS__);          \
  } while (0)
#else
#define trc2(...) (void(0))
#endif
#line 67 "template/template.hpp"

// macro
#line 1 "template/macro.hpp"
#define each(x, v) for (auto&& x : v)
#define each2(x, y, v) for (auto&& [x, y] : v)
#define all(v) (v).begin(), (v).end()
#define rep(i, N) for (long long i = 0; i < (long long)(N); i++)
#define repr(i, N) for (long long i = (long long)(N)-1; i >= 0; i--)
#define rep1(i, N) for (long long i = 1; i <= (long long)(N); i++)
#define repr1(i, N) for (long long i = (N); (long long)(i) > 0; i--)
#define reg(i, a, b) for (long long i = (a); i < (b); i++)
#define regr(i, a, b) for (long long i = (b)-1; i >= (a); i--)
#define fi first
#define se second
#define ini(...)   \
  int __VA_ARGS__; \
  in(__VA_ARGS__)
#define inl(...)         \
  long long __VA_ARGS__; \
  in(__VA_ARGS__)
#define ins(...)      \
  string __VA_ARGS__; \
  in(__VA_ARGS__)
#define in2(s, t)                           \
  for (int i = 0; i < (int)s.size(); i++) { \
    in(s[i], t[i]);                         \
  }
#define in3(s, t, u)                        \
  for (int i = 0; i < (int)s.size(); i++) { \
    in(s[i], t[i], u[i]);                   \
  }
#define in4(s, t, u, v)                     \
  for (int i = 0; i < (int)s.size(); i++) { \
    in(s[i], t[i], u[i], v[i]);             \
  }
#define die(...)             \
  do {                       \
    Nyaan::out(__VA_ARGS__); \
    return;                  \
  } while (0)
#line 70 "template/template.hpp"

namespace Nyaan {
void solve();
}
int main() { Nyaan::solve(); }
#line 4 "verify/verify-unit-test/segment-tree-beats.test.cpp"
//
#line 2 "segment-tree/segment-tree-beats.hpp"

struct AngelBeats {
  using i64 = long long;
  static constexpr i64 INF = numeric_limits<i64>::max() / 2.1;

  struct alignas(32) Node {
    i64 sum = 0, g1 = 0, l1 = 0;
    i64 g2 = -INF, gc = 1, l2 = INF, lc = 1, add = 0;
  };

  vector<Node> v;
  i64 n, log;

  AngelBeats() {}
  AngelBeats(int _n) : AngelBeats(vector<i64>(_n)) {}
  AngelBeats(const vector<i64>& vc) {
    n = 1, log = 0;
    while (n < (int)vc.size()) n <<= 1, log++;
    v.resize(2 * n);
    for (i64 i = 0; i < (int)vc.size(); ++i) {
      v[i + n].sum = v[i + n].g1 = v[i + n].l1 = vc[i];
    }
    for (i64 i = n - 1; i; --i) update(i);
  }

  void range_chmin(int l, int r, i64 x) { inner_apply<1>(l, r, x); }
  void range_chmax(int l, int r, i64 x) { inner_apply<2>(l, r, x); }
  void range_add(int l, int r, i64 x) { inner_apply<3>(l, r, x); }
  void range_update(int l, int r, i64 x) { inner_apply<4>(l, r, x); }
  i64 range_min(int l, int r) { return inner_fold<1>(l, r); }
  i64 range_max(int l, int r) { return inner_fold<2>(l, r); }
  i64 range_sum(int l, int r) { return inner_fold<3>(l, r); }

 private:
  void update(int k) {
    Node& p = v[k];
    Node& l = v[k * 2 + 0];
    Node& r = v[k * 2 + 1];

    p.sum = l.sum + r.sum;

    if (l.g1 == r.g1) {
      p.g1 = l.g1;
      p.g2 = max(l.g2, r.g2);
      p.gc = l.gc + r.gc;
    } else {
      bool f = l.g1 > r.g1;
      p.g1 = f ? l.g1 : r.g1;
      p.gc = f ? l.gc : r.gc;
      p.g2 = max(f ? r.g1 : l.g1, f ? l.g2 : r.g2);
    }

    if (l.l1 == r.l1) {
      p.l1 = l.l1;
      p.l2 = min(l.l2, r.l2);
      p.lc = l.lc + r.lc;
    } else {
      bool f = l.l1 < r.l1;
      p.l1 = f ? l.l1 : r.l1;
      p.lc = f ? l.lc : r.lc;
      p.l2 = min(f ? r.l1 : l.l1, f ? l.l2 : r.l2);
    }
  }

  void push_add(int k, i64 x) {
    Node& p = v[k];
    p.sum += x << (log + __builtin_clz(k) - 31);
    p.g1 += x;
    p.l1 += x;
    if (p.g2 != -INF) p.g2 += x;
    if (p.l2 != INF) p.l2 += x;
    p.add += x;
  }
  void push_min(int k, i64 x) {
    Node& p = v[k];
    p.sum += (x - p.g1) * p.gc;
    if (p.l1 == p.g1) p.l1 = x;
    if (p.l2 == p.g1) p.l2 = x;
    p.g1 = x;
  }
  void push_max(int k, i64 x) {
    Node& p = v[k];
    p.sum += (x - p.l1) * p.lc;
    if (p.g1 == p.l1) p.g1 = x;
    if (p.g2 == p.l1) p.g2 = x;
    p.l1 = x;
  }
  void push(int k) {
    Node& p = v[k];
    if (p.add != 0) {
      push_add(k * 2 + 0, p.add);
      push_add(k * 2 + 1, p.add);
      p.add = 0;
    }
    if (p.g1 < v[k * 2 + 0].g1) push_min(k * 2 + 0, p.g1);
    if (p.l1 > v[k * 2 + 0].l1) push_max(k * 2 + 0, p.l1);

    if (p.g1 < v[k * 2 + 1].g1) push_min(k * 2 + 1, p.g1);
    if (p.l1 > v[k * 2 + 1].l1) push_max(k * 2 + 1, p.l1);
  }

  void subtree_chmin(int k, i64 x) {
    if (v[k].g1 <= x) return;
    if (v[k].g2 < x) {
      push_min(k, x);
      return;
    }
    push(k);
    subtree_chmin(k * 2 + 0, x);
    subtree_chmin(k * 2 + 1, x);
    update(k);
  }

  void subtree_chmax(int k, i64 x) {
    if (x <= v[k].l1) return;
    if (x < v[k].l2) {
      push_max(k, x);
      return;
    }
    push(k);
    subtree_chmax(k * 2 + 0, x);
    subtree_chmax(k * 2 + 1, x);
    update(k);
  }

  template <int cmd>
  inline void _apply(int k, i64 x) {
    if constexpr (cmd == 1) subtree_chmin(k, x);
    if constexpr (cmd == 2) subtree_chmax(k, x);
    if constexpr (cmd == 3) push_add(k, x);
    if constexpr (cmd == 4) subtree_chmin(k, x), subtree_chmax(k, x);
  }

  template <int cmd>
  void inner_apply(int l, int r, i64 x) {
    if (l == r) return;
    l += n, r += n;
    for (int i = log; i >= 1; i--) {
      if (((l >> i) << i) != l) push(l >> i);
      if (((r >> i) << i) != r) push((r - 1) >> i);
    }
    {
      int l2 = l, r2 = r;
      while (l < r) {
        if (l & 1) _apply<cmd>(l++, x);
        if (r & 1) _apply<cmd>(--r, x);
        l >>= 1;
        r >>= 1;
      }
      l = l2;
      r = r2;
    }
    for (int i = 1; i <= log; i++) {
      if (((l >> i) << i) != l) update(l >> i);
      if (((r >> i) << i) != r) update((r - 1) >> i);
    }
  }

  template <int cmd>
  inline i64 e() {
    if constexpr (cmd == 1) return INF;
    if constexpr (cmd == 2) return -INF;
    return 0;
  }

  template <int cmd>
  inline void op(i64& a, const Node& b) {
    if constexpr (cmd == 1) a = min(a, b.l1);
    if constexpr (cmd == 2) a = max(a, b.g1);
    if constexpr (cmd == 3) a += b.sum;
  }

  template <int cmd>
  i64 inner_fold(int l, int r) {
    if (l == r) return e<cmd>();
    l += n, r += n;
    for (int i = log; i >= 1; i--) {
      if (((l >> i) << i) != l) push(l >> i);
      if (((r >> i) << i) != r) push((r - 1) >> i);
    }
    i64 lx = e<cmd>(), rx = e<cmd>();
    while (l < r) {
      if (l & 1) op<cmd>(lx, v[l++]);
      if (r & 1) op<cmd>(rx, v[--r]);
      l >>= 1;
      r >>= 1;
    }
    if constexpr (cmd == 1) lx = min(lx, rx);
    if constexpr (cmd == 2) lx = max(lx, rx);
    if constexpr (cmd == 3) lx += rx;
    return lx;
  }
};

/**
 * @brief Range Chmin Chmax Add Update Range Min Max Sum Segment Tree Beats!
 * @docs docs/segment-tree/segment-tree-beats.md
 */
#line 6 "verify/verify-unit-test/segment-tree-beats.test.cpp"

using namespace Nyaan;

#line 2 "misc/rng.hpp"

#line 2 "internal/internal-seed.hpp"

#line 4 "internal/internal-seed.hpp"
using namespace std;

namespace internal {
unsigned long long non_deterministic_seed() {
  unsigned long long m =
      chrono::duration_cast<chrono::nanoseconds>(
          chrono::high_resolution_clock::now().time_since_epoch())
          .count();
  m ^= 9845834732710364265uLL;
  m ^= m << 24, m ^= m >> 31, m ^= m << 35;
  return m;
}
unsigned long long deterministic_seed() { return 88172645463325252UL; }

// 64 bit の seed 値を生成 (手元では seed 固定)
// 連続で呼び出すと同じ値が何度も返ってくるので注意
// #define RANDOMIZED_SEED するとシードがランダムになる
unsigned long long seed() {
#if defined(NyaanLocal) && !defined(RANDOMIZED_SEED)
  return deterministic_seed();
#else
  return non_deterministic_seed();
#endif
}

}  // namespace internal
#line 4 "misc/rng.hpp"

namespace my_rand {
using i64 = long long;
using u64 = unsigned long long;

// [0, 2^64 - 1)
u64 rng() {
  static u64 _x = internal::seed();
  return _x ^= _x << 7, _x ^= _x >> 9;
}

// [l, r]
i64 rng(i64 l, i64 r) {
  assert(l <= r);
  return l + rng() % u64(r - l + 1);
}

// [l, r)
i64 randint(i64 l, i64 r) {
  assert(l < r);
  return l + rng() % u64(r - l);
}

// choose n numbers from [l, r) without overlapping
vector<i64> randset(i64 l, i64 r, i64 n) {
  assert(l <= r && n <= r - l);
  unordered_set<i64> s;
  for (i64 i = n; i; --i) {
    i64 m = randint(l, r + 1 - i);
    if (s.find(m) != s.end()) m = r - i;
    s.insert(m);
  }
  vector<i64> ret;
  for (auto& x : s) ret.push_back(x);
  sort(begin(ret), end(ret));
  return ret;
}

// [0.0, 1.0)
double rnd() { return rng() * 5.42101086242752217004e-20; }
// [l, r)
double rnd(double l, double r) {
  assert(l < r);
  return l + rnd() * (r - l);
}

template <typename T>
void randshf(vector<T>& v) {
  int n = v.size();
  for (int i = 1; i < n; i++) swap(v[i], v[randint(0, i + 1)]);
}

}  // namespace my_rand

using my_rand::randint;
using my_rand::randset;
using my_rand::randshf;
using my_rand::rnd;
using my_rand::rng;
#line 10 "verify/verify-unit-test/segment-tree-beats.test.cpp"
void verify(int n, int coeff = 100) {
  vl a(n);
  rep(i, n) a[i] = randint(-TEN(10), TEN(10));

  AngelBeats seg(a);
  int q = n * n * coeff;
  while (q--) {
    int cmd = randint(0, 7);
    if (cmd == 3) cmd = randint(0, 7);
    int l, r;
    do {
      l = randint(0, n);
      r = randint(0, n + 1);
    } while (l > r);
    i64 x = randint(-TEN(10), TEN(10));
    if (cmd == 0) {
      // range chmin
      seg.range_chmin(l, r, x);
      for (int i = l; i < r; i++) a[i] = min(a[i], x);
    } else if (cmd == 1) {
      // range chmax
      seg.range_chmax(l, r, x);
      for (int i = l; i < r; i++) a[i] = max(a[i], x);
    } else if (cmd == 2) {
      // range add
      seg.range_add(l, r, x);
      for (int i = l; i < r; i++) a[i] += x;
    } else if (cmd == 3) {
      // range update
      seg.range_update(l, r, x);
      for (int i = l; i < r; i++) a[i] = x;
    } else if (cmd == 4) {
      // range min
      ll s1 = seg.range_min(l, r);
      ll s2 = seg.INF;
      for (int i = l; i < r; i++) s2 = min(s2, a[i]);
      assert(s1 == s2 && "range min");
    } else if (cmd == 5) {
      // range max
      ll s1 = seg.range_max(l, r);
      ll s2 = -seg.INF;
      for (int i = l; i < r; i++) s2 = max(s2, a[i]);
      assert(s1 == s2 && "range max");
    } else if (cmd == 6) {
      // range sum
      ll s1 = seg.range_sum(l, r);
      ll s2 = 0;
      for (int i = l; i < r; i++) s2 += a[i];
      assert(s1 == s2 && "range sum");
    }
  }
}

void Nyaan::solve() {
  int a, b;
  cin >> a >> b;
  cout << (a + b) << endl;

  verify(1);
  verify(2);
  verify(63);
  verify(64);
  verify(65);
}

Nyaan's Library

This documentation is automatically generated by online-judge-tools/verification-helper

verify/verify-unit-test/segment-tree-beats.test.cpp

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