結果

問題 No.404 部分門松列
ユーザー Iseri
提出日時 2022-07-13 09:13:57
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 1,712 ms / 2,000 ms
コード長 16,933 bytes
コンパイル時間 3,687 ms
コンパイル使用メモリ 226,772 KB
実行使用メモリ 45,840 KB
最終ジャッジ日時 2024-06-24 08:13:29
合計ジャッジ時間 24,871 ms
ジャッジサーバーID
(参考情報)
judge1 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 4
other AC * 31
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;
// #pragma GCC target("arch=skylake-avx512")
// #include <atcoder/all>
// using namespace atcoder;
// #define NDEBUG
// #define _GLIBCXX_DEBUG
#pragma region template
// Define
using ll = long long;
using ull = unsigned long long;
using ld = long double;
template <class T> using pvector = vector<pair<T, T>>;
template <class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>;
constexpr const ll dx[4] = {1, 0, -1, 0};
constexpr const ll dy[4] = {0, 1, 0, -1};
constexpr const ll MOD = 1e9 + 7;
constexpr const ll mod = 998244353;
constexpr const ll INF = 1LL << 60;
constexpr const ll inf = 1 << 30;
constexpr const char rt = '\n';
constexpr const char sp = ' ';
#define rt(i, n) (i == (ll) (n) -1 ? rt : sp)
#define len(x) ((ll) (x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define eb emplace_back
#define ifn(x) if (not(x))
#define elif else if
#define elifn else ifn
#define fi first
#define se second
#define uniq(x) (sort(all(x)), (x).erase(unique(all(x)), (x).end()))
#define bis(x, y) ((ll) (lower_bound(all(x), y) - (x).begin()))
using graph = vector<vector<ll>>;
template <class T> using wgraph = vector<vector<pair<ll, T>>>;
bool __DIRECTED__ = true;
bool __ZERO_INDEXED__ = false;
istream &operator>>(istream &is, graph &g) {
ll a, b;
is >> a >> b;
if (__ZERO_INDEXED__ == false) a--, b--;
g[a].pb(b);
if (__DIRECTED__ == false) g[b].pb(a);
return is;
}
template <class T> istream &operator>>(istream &is, wgraph<T> &g) {
ll a, b;
T c;
is >> a >> b >> c;
if (__ZERO_INDEXED__ == false) a--, b--;
g[a].pb({b, c});
if (__DIRECTED__ == false) g[b].pb({a, c});
return is;
}
template <class T> bool chmax(T &a, const T &b) {
if (a < b) {
a = b;
return 1;
}
return 0;
}
template <class T> bool chmin(T &a, const T &b) {
if (a > b) {
a = b;
return 1;
}
return 0;
}
// Debug
#ifdef NDEBUG
#define debug(...)
#define dumpi(a, h, w)
#define vdumpi(a, n)
#define dump(a, h, w)
#define vdump(a, n)
#else
#define debug(...) \
{ \
cerr << __LINE__ << ": " << #__VA_ARGS__ << " = "; \
for (auto &&__i : {__VA_ARGS__}) cerr << "[" << __i << "] "; \
cerr << rt; \
}
#define dumpi(a, h, w) \
{ \
cerr << __LINE__ << ": " << #a << " = [" << rt; \
rep(__i, h) { \
if (__i) cerr << ",\n"; \
cerr << "["; \
rep(__j, w) { \
if (__j) cerr << ", "; \
if (abs(a[__i][__j]) >= INF / 2 and a[__i][__j] <= -INF / 2) cerr << '-'; \
if (abs(a[__i][__j]) >= INF / 2) cerr << "∞"; \
else \
cerr << a[__i][__j]; \
} \
cerr << "]"; \
} \
cerr << "\n]" << rt; \
}
#define vdumpi(a, n) \
{ \
cerr << __LINE__ << ": " << #a << " = ["; \
rep(__i, n) { \
if (__i) cerr << ", "; \
if (abs(a[__i]) >= INF / 2 and a[__i] <= -INF / 2) cerr << '-'; \
if (abs(a[__i]) >= INF / 2) cerr << "∞"; \
else \
cerr << a[__i]; \
} \
cerr << "]" << rt; \
}
#define dump(a, h, w) \
{ \
cerr << __LINE__ << ": " << #a << " = [" << rt; \
rep(__i, h) { \
if (__i) cerr << ",\n"; \
cerr << "["; \
rep(__j, w) { \
if (__j) cerr << ", "; \
cerr << a[__i][__j]; \
} \
cerr << "]"; \
} \
cerr << "\n]" << rt; \
}
#define vdump(a, n) \
{ \
cerr << __LINE__ << ": " << #a << " = ["; \
rep(__i, n) { \
if (__i) cerr << ", "; \
cerr << a[__i]; \
} \
cerr << "]" << rt; \
}
#endif
template <class S, class T> istream &operator>>(istream &is, pair<S, T> &p) {
is >> p.first >> p.second;
return is;
}
template <class S, class T> ostream &operator<<(ostream &os, const pair<S, T> &p) {
os << p.first << ' ' << p.second;
return os;
}
// Loop
#define inc(i, a, n) for (ll i = (a), _##i = (n); i <= _##i; ++i)
#define dec(i, a, n) for (ll i = (a), _##i = (n); i >= _##i; --i)
#define rep(i, n) for (ll i = 0, _##i = (n); i < _##i; ++i)
#define each(i, a) for (auto &&i : a)
// Stream
#define fout(n) cout << fixed << setprecision(n)
struct io {
io() { cin.tie(nullptr), ios::sync_with_stdio(false); }
} io;
// Speed
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("Ofast,unroll-loops")
// Math
inline constexpr ll gcd(const ll a, const ll b) { return b ? gcd(b, a % b) : a; }
inline constexpr ll lcm(const ll a, const ll b) { return a / gcd(a, b) * b; }
inline constexpr ll modulo(const ll n, const ll m = MOD) {
ll k = n % m;
return k + m * (k < 0);
}
inline constexpr ll chmod(ll &n, const ll m = MOD) {
n %= m;
return n += m * (n < 0);
}
inline constexpr ll mpow(ll a, ll n, const ll m = MOD) {
ll r = 1;
rep(i, 64) {
if (n & (1LL << i)) r *= a;
chmod(r, m);
a *= a;
chmod(a, m);
}
return r;
}
inline ll inv(const ll n, const ll m = MOD) {
ll a = n, b = m, x = 1, y = 0;
while (b) {
ll t = a / b;
a -= t * b;
swap(a, b);
x -= t * y;
swap(x, y);
}
return modulo(x, m);
}
unsigned long long binary_gcd(unsigned long long x, unsigned long long y) {
if (!x | !y) return x | y;
unsigned long long cx = __builtin_ctzll(x), cy = __builtin_ctzll(y);
x >>= cx, y >>= cy;
while (x ^ y) {
if (x > y) {
x = (x - y) >> __builtin_ctzll(x ^ y);
} else {
y = (y - x) >> __builtin_ctzll(x ^ y);
}
}
return x << min(cx, cy);
}
inline long long binary_gcd(long long x, long long y) {
return binary_gcd((unsigned long long) (abs(x)), (unsigned long long) (abs(y)));
}
#define codeforces \
ll testcases; \
cin >> testcases; \
rep(testcase, testcases)
#define gcj(s) cout << s << testcase + 1 << ": "
#pragma endregion
/**
* @brief Succinct Indexable Dictionary()
*/
struct SuccinctIndexableDictionary {
size_t length;
size_t blocks;
vector<unsigned> bit, sum;
SuccinctIndexableDictionary() = default;
SuccinctIndexableDictionary(size_t length) : length(length), blocks((length + 31) >> 5) {
bit.assign(blocks, 0U);
sum.assign(blocks, 0U);
}
void set(int k) { bit[k >> 5] |= 1U << (k & 31); }
void build() {
sum[0] = 0U;
for (int i = 1; i < blocks; i++) {
sum[i] = sum[i - 1] + __builtin_popcount(bit[i - 1]);
}
}
bool operator[](int k) { return (bool((bit[k >> 5] >> (k & 31)) & 1)); }
int rank(int k) {
return (sum[k >> 5] + __builtin_popcount(bit[k >> 5] & ((1U << (k & 31)) - 1)));
}
int rank(bool val, int k) { return (val ? rank(k) : k - rank(k)); }
};
template <typename T, int MAXLOG> struct WaveletTree {
struct Node {
SuccinctIndexableDictionary sid;
Node *ch[2];
Node() = default;
Node(size_t length) : sid(length + 1), ch{nullptr} {}
};
Node *root;
Node *build(vector<T> &v, vector<T> &rbuff, int bit, int l, int r) {
if (l >= r || bit == -1) return nullptr;
Node *node = new Node(r - l);
int left = 0, right = 0;
for (int k = l; k < r; k++) {
if (((v[k] >> bit) & 1)) {
rbuff[right++] = v[k];
node->sid.set(k - l);
} else {
v[l + left++] = v[k];
}
}
for (int k = 0; k < right; k++) {
v[l + left + k] = rbuff[k];
}
node->sid.build();
node->ch[0] = build(v, rbuff, bit - 1, l, l + left);
node->ch[1] = build(v, rbuff, bit - 1, l + left, r);
return node;
}
WaveletTree() = default;
WaveletTree(vector<T> v) {
vector<T> rbuff(v.size());
root = build(v, rbuff, MAXLOG - 1, 0, v.size());
}
int rank(Node *t, int l, int r, const T &x, int level) {
if (l >= r || t == nullptr) return 0;
if (level == -1) return r - l;
bool f = (x >> level) & 1;
l = t->sid.rank(f, l), r = t->sid.rank(f, r);
return rank(t->ch[f], l, r, x, level - 1);
}
int rank(const T &x, int r) { return rank(root, 0, r, x, MAXLOG - 1); }
T kth_smallest(Node *t, int l, int r, int k, int level) {
if (l >= r || t == nullptr) return 0;
int cnt = t->sid.rank(false, r) - t->sid.rank(false, l);
bool f = cnt <= k;
l = t->sid.rank(f, l), r = t->sid.rank(f, r);
if (f) return kth_smallest(t->ch[f], l, r, k - cnt, level - 1) | ((T(1) << level));
return kth_smallest(t->ch[f], l, r, k, level - 1);
}
// k-th(0-indexed) smallest number in v[l,r)
T kth_smallest(int l, int r, int k) {
assert(0 <= k && k < r - l);
return kth_smallest(root, l, r, k, MAXLOG - 1);
}
// k-th(0-indexed) largest number in v[l,r)
T kth_largest(int l, int r, int k) { return kth_smallest(l, r, r - l - k - 1); }
int range_freq(Node *t, int l, int r, T upper, int level) {
if (t == nullptr || l >= r) return 0;
bool f = ((upper >> level) & 1);
int ret = 0;
if (f) ret += t->sid.rank(false, r) - t->sid.rank(false, l);
l = t->sid.rank(f, l), r = t->sid.rank(f, r);
return range_freq(t->ch[f], l, r, upper, level - 1) + ret;
}
// count i s.t. (l <= i < r) && (v[i] < upper)
int range_freq(int l, int r, T upper) { return range_freq(root, l, r, upper, MAXLOG - 1); }
// count i s.t. (l <= i < r) && (lower <= v[i] < upper)
int range_freq(int l, int r, T lower, T upper) {
return range_freq(l, r, upper) - range_freq(l, r, lower);
}
// max v[i] s.t. (l <= i < r) && (v[i] < upper)
T prev_value(int l, int r, T upper) {
int cnt = range_freq(l, r, upper);
return cnt == 0 ? T(-1) : kth_smallest(l, r, cnt - 1);
}
// min v[i] s.t. (l <= i < r) && (lower <= v[i])
T next_value(int l, int r, T lower) {
int cnt = range_freq(l, r, lower);
return cnt == r - l ? T(-1) : kth_smallest(l, r, cnt);
}
};
template <typename T, int MAXLOG> struct CompressedWaveletTree {
WaveletTree<int, MAXLOG> mat;
vector<T> ys;
CompressedWaveletTree(const vector<T> &v) : ys(v) {
sort(begin(ys), end(ys));
ys.erase(unique(begin(ys), end(ys)), end(ys));
vector<int> t(v.size());
for (int i = 0; i < v.size(); i++) t[i] = get(v[i]);
mat = WaveletTree<int, MAXLOG>(t);
}
inline int get(const T &x) { return lower_bound(begin(ys), end(ys), x) - begin(ys); }
int rank(const T &x, int r) {
auto pos = get(x);
if (pos == ys.size() || ys[pos] != x) return 0;
return mat.rank(pos, r);
}
T kth_smallest(int l, int r, int k) { return ys[mat.kth_smallest(l, r, k)]; }
T kth_largest(int l, int r, int k) { return ys[mat.kth_largest(l, r, k)]; }
int range_freq(int l, int r, T upper) { return mat.range_freq(l, r, get(upper)); }
int range_freq(int l, int r, T lower, T upper) {
return mat.range_freq(l, r, get(lower), get(upper));
}
T prev_value(int l, int r, T upper) {
auto ret = mat.prev_value(l, r, get(upper));
return ret == -1 ? T(-1) : ys[ret];
}
T next_value(int l, int r, T lower) {
auto ret = mat.next_value(l, r, get(lower));
return ret == -1 ? T(-1) : ys[ret];
}
};
signed main() {
ll n;
cin >> n;
vector<ll> a(n);
rep(i, n) cin >> a[i];
CompressedWaveletTree<ll, 20> cwt(a);
map<ll, ll> res;
rep(i, n) {
ll c1 = cwt.range_freq(0, i, 0, a[i]);
ll c2 = cwt.range_freq(i + 1, n, 0, a[i]);
ll c3 = cwt.range_freq(0, i, a[i] + 1, INF);
ll c4 = cwt.range_freq(i + 1, n, a[i] + 1, INF);
ll c5 = cwt.range_freq(0, i, a[i], a[i] + 1);
ll c6 = cwt.range_freq(i + 1, n, a[i], a[i] + 1);
res[a[i]] += c1 * c2 + c3 * c4 + c5 * c6;
}
ll sum = 0;
rep(i, n) {
sum -= cwt.range_freq(0, i - 1, a[i], a[i] + 1);
if (i != 0) sum += cwt.range_freq(i + 1, n, a[i - 1], a[i - 1] + 1);
res[a[i]] -= sum;
}
vector<pair<ll, ll>> v = {{0, 0}};
each(it, res) v.push_back(it);
sort(begin(v), end(v));
rep(i, v.size() - 1) v[i + 1].second += v[i].second;
ll q;
cin >> q;
rep(i, q) {
ll l, h;
cin >> l >> h;
ll hi = upper_bound(begin(v), end(v), make_pair(h, INF)) - begin(v) - 1;
if (hi == -1) hi = 0;
ll lo = upper_bound(begin(v), end(v), make_pair(l - 1, INF)) - begin(v) - 1;
if (lo == -1) lo = 0;
cout << v[hi].second - v[lo].second << rt;
}
}
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