# | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
639903 | 2022-09-12T16:34:27 Z | ghostwriter | Secret (JOI14_secret) | C++14 | 0 ms | 0 KB |
#include "secret.h" #include <bits/stdc++.h> using namespace std; #ifdef LOCAL #include <debug.h> #include "grader.cpp" #endif #define st first #define nd second #define pb push_back #define pf push_front #define _pb pop_back #define _pf pop_front #define lb lower_bound #define ub upper_bound #define mtp make_tuple #define all(x) (x).begin(), (x).end() #define sz(x) (int)(x).size() typedef long long ll; typedef unsigned long long ull; typedef double db; typedef long double ldb; typedef pair<int, int> pi; typedef pair<ll, ll> pll; typedef vector<int> vi; typedef vector<ll> vll; typedef vector<pi> vpi; typedef vector<pll> vpll; typedef string str; template<typename T> T gcd(T a, T b) { return (b == 0? a : gcd(b, a % b)); } template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; } #define FOR(i, l, r) for (int (i) = (l); (i) <= (r); ++(i)) #define FOS(i, r, l) for (int (i) = (r); (i) >= (l); --(i)) #define EACH(i, x) for (auto &(i) : (x)) #define WHILE while #define file "TEST" mt19937 rd(chrono::steady_clock::now().time_since_epoch().count()); ll rand(ll l, ll r) { return uniform_int_distribution<ll>(l, r)(rd); } /* Tran The Bao CTL - Da Lat Cay ngay cay dem nhung deo duoc cong nhan */ const int MAXN = 1000; int d[MAXN][MAXN]; void build(int l, int r, int a[]) { if (l == r) { d[l][l] = a[l]; return; } int mid = l + (r - l) / 2; build(l, mid, a); build(mid + 1, r, a); FOR(i, mid + 1, r) d[l][i] = Secret(d[l][i - 1], d[mid + 1][i]); FOR(i, l, mid) d[i][r] = Secret(d[i][mid], d[mid + 1][r]); } void Init(int N, int A[]) { build(0, N - 1, A); } int Query(int L, int R) { int l = 0, r = N - 1; WHILE(1) { int mid = l + (r - l) / 2; if (L <= mid && mid <= R) { int a = d[L][mid], b = (mid + 1 > R? -1 : d[mid + 1][R]); if (b != -1) return Secret(a, b); return a; } if (mid < L) l = mid + 1; else r = mid; } return 0; }