// Copyright © 2022 Youngmin Park. All rights reserved.
//#pragma GCC optimize("O3")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
#include "secret.h"
using namespace std;
using ll = long long;
using vi = vector<int>;
using pii = pair<int, int>;
using vpi = vector<pii>;
using pll = pair<ll, ll>;
using vl = vector<ll>;
using vpl = vector<pll>;
using ld = long double;
template <typename T, size_t SZ>
using ar = array<T, SZ>;
template <typename T>
using pqg = priority_queue<T, vector<T>, greater<T>>;
#define all(v) (v).begin(), (v).end()
#define pb push_back
#define sz(x) (int)(x).size()
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
constexpr int INF = 1e9;
constexpr ll LINF = 1e18;
const ld PI = acos((ld)-1.0);
constexpr int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T>
constexpr bool ckmin(T &a, const T &b) { return b < a ? a = b, 1 : 0; }
template <typename T>
constexpr bool ckmax(T &a, const T &b) { return b > a ? a = b, 1 : 0; }
template <typename A, typename B>
ostream &operator<<(ostream &os, const pair<A, B> &p)
{
return os << '(' << p.first << ", " << p.second << ')';
}
template <typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type>
ostream &operator<<(ostream &os, const T_container &v)
{
os << '{';
string sep;
for (const T &x : v)
os << sep << x, sep = ", ";
return os << '}';
}
template <typename T>
ostream &operator<<(ostream &os, const deque<T> &v) {
os << vector<T>(all(v));
return os;
}
template <typename T, typename S, typename C>
ostream &operator<<(ostream &os, priority_queue<T, S, C> pq) {
vector<T> v;
while (sz(pq)) {
v.pb(pq.top());
pq.pop();
}
os << v;
return os;
}
void dbg_out()
{
cerr << "\033[0m" << endl;
}
template <typename Head, typename... Tail>
void dbg_out(Head H, Tail... T)
{
cerr << ' ' << H;
dbg_out(T...);
}
#ifdef LOCAL
#define dbg(...) cerr << "\033[1;35m(" << #__VA_ARGS__ << "):\033[33m", dbg_out(__VA_ARGS__)
#else
#define dbg(...) 42
#endif
inline namespace RecursiveLambda
{
template <typename Fun>
struct y_combinator_result
{
Fun fun_;
template <typename T>
explicit y_combinator_result(T &&fun) : fun_(forward<T>(fun)) {}
template <typename... Args>
decltype(auto) operator()(Args &&...args)
{
return fun_(ref(*this), forward<Args>(args)...);
}
};
template <typename Fun>
decltype(auto) y_combinator(Fun &&fun)
{
return y_combinator_result<decay_t<Fun>>(forward<Fun>(fun));
}
};
inline namespace Range {
class ForwardRange {
int src, dst;
public:
explicit constexpr ForwardRange(const int l, const int r) : src(l), dst(r) {}
explicit constexpr ForwardRange(const int n) : src(0), dst(n) {}
constexpr ForwardRange begin() const { return *this; }
constexpr monostate end() const { return {}; }
constexpr bool operator!=(monostate) const { return src < dst; }
constexpr void operator++() const {}
constexpr int operator*() { return src++; }
};
class BackwardRange {
int src, dst;
public:
explicit constexpr BackwardRange(const int l, const int r) : src(r), dst(l) {}
explicit constexpr BackwardRange(const int n) : src(n), dst(0) {}
constexpr BackwardRange begin() const { return *this; }
constexpr monostate end() const { return {}; }
constexpr bool operator!=(monostate) const { return src > dst; }
constexpr void operator++() const {}
constexpr int operator*() { return --src; }
};
using rep = ForwardRange;
using per = BackwardRange;
};
constexpr int K = 10;
constexpr int MX = 1024;
int layer[K][MX];
int a[MX];
int n;
int NN;
void DnC(int L, int R, int lev) {
if (lev <= 0) return;
int M = (L + R) >> 1;
int prod = -1;
for (int i : rep(M, R)) {
if (i >= NN) break;
int nxt = prod == -1 ? a[i] : Secret(prod, a[i]);
layer[lev][i] = prod = nxt;
}
prod = -1;
for (int i : per(L, M)) {
if (i >= NN) break;
int nxt = prod == -1 ? a[i] : Secret(a[i], prod);
layer[lev][i] = prod = nxt;
}
DnC(L, M, lev - 1), DnC(M, R, lev - 1);
}
void Init(int N, int A[]) {
NN = N;
for (int i : rep(N)) a[i] = A[i];
n = 1;
while ((1 << n) < N) n++;
DnC(0, (1 << n), n - 1);
}
int Query(int L, int R) {
if (L == R) return a[L];
if (L == R - 1) return Secret(a[L], a[R]);
int z = 31 - __builtin_clz(L ^ R);
int x = layer[z][L], y = layer[z][R];
return Secret(x, y);
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
124 ms |
2388 KB |
Output is correct - number of calls to Secret by Init = 3578, maximum number of calls to Secret by Query = 1 |
| 2 |
Correct |
128 ms |
2400 KB |
Output is correct - number of calls to Secret by Init = 3586, maximum number of calls to Secret by Query = 1 |
| 3 |
Correct |
135 ms |
2448 KB |
Output is correct - number of calls to Secret by Init = 4097, maximum number of calls to Secret by Query = 1 |
| 4 |
Correct |
451 ms |
4420 KB |
Output is correct - number of calls to Secret by Init = 7979, maximum number of calls to Secret by Query = 1 |
| 5 |
Correct |
469 ms |
4288 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
| 6 |
Correct |
467 ms |
4284 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
| 7 |
Correct |
465 ms |
4320 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
| 8 |
Correct |
479 ms |
4356 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
| 9 |
Correct |
485 ms |
4388 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
| 10 |
Correct |
472 ms |
4312 KB |
Output is correct - number of calls to Secret by Init = 7993, maximum number of calls to Secret by Query = 1 |
