結果
| 問題 |
No.878 Range High-Element Query
|
| コンテスト | |
| ユーザー |
kotamanegi
|
| 提出日時 | 2019-09-06 22:26:57 |
| 言語 | C++17(clang) (17.0.6 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 220 ms / 2,000 ms |
| コード長 | 3,701 bytes |
| コンパイル時間 | 1,508 ms |
| コンパイル使用メモリ | 155,488 KB |
| 実行使用メモリ | 55,148 KB |
| 最終ジャッジ日時 | 2024-11-30 14:53:21 |
| 合計ジャッジ時間 | 4,479 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 18 |
ソースコード
/*
This Submission is to determine how many 120/240 min const. delivery point there are.
//info
120 req. steps <= 5
*/
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream>
#include <random>
#include<map>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <cassert>
#include<fstream>
#include <unordered_map>
#include <cstdlib>
#include <complex>
#include <cctype>
#include <bitset>
using namespace std;
typedef string::const_iterator State;
#define Ma_PI 3.141592653589793
#define eps 1e-5
#define LONG_INF 1e18
#define GOLD 1.61803398874989484820458
#define MAX_MOD 1000000007LL
#define MOD 998244353LL
#define seg_size 262144
#define REP(a,b) for(long long a = 0;a < b;++a)
unsigned long xor128() {
static unsigned long x = time(NULL), y = 362436069, z = 521288629, w = 88675123;
unsigned long t = (x ^ (x << 11));
x = y; y = z; z = w;
return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));
}
double dot(complex<double> a, complex<double> b) {
return a.real() * b.real() + a.imag() * b.imag();
}
double gyaku_dot(complex<double> a, complex<double> b) {
return a.real() * b.imag() - a.imag() * b.real();
}
double leng(complex<double> a) {
return sqrt(a.real() * a.real() + a.imag() * a.imag());
}
double angles(complex<double> a, complex<double> b) {
double cosine = dot(a, b) / (leng(a) * leng(b));
double sine = gyaku_dot(a, b) / (leng(a) * leng(b));
double kaku = acos(min((double)1.0, max((double)-1.0, cosine)));
if (sine <= 0) {
kaku = 2 * Ma_PI - kaku;
}
return kaku;
}
vector<int> convex_hull(vector<complex<double>> a) {
vector<int> ans;
double now_minnest = a[0].real();
int now_itr = 0;
REP(i, a.size()) {
if (now_minnest > a[i].real()) {
now_minnest = a[i].real();
now_itr = i;
}
}
ans.push_back(now_itr);
complex<double> ba(0, 1);
while (true) {
int now_go = 0;
double now_min = 0;
double now_length = 0;
int starter = ans[ans.size() - 1];
for (int i = 0; i < a.size(); ++i) {
if (i != starter) {
double goa = angles(ba, a[i] - a[starter]);
if (goa - now_min >= eps || (abs(goa - now_min) <= eps && (abs(a[i] - a[starter]) - now_length) >= eps)) {
now_min = goa;
now_go = i;
now_length = abs(a[i] - a[starter]);
}
}
}
if (now_go == ans[0]) break;
ans.push_back(now_go);
ba = complex<double>(a[now_go] - a[starter]);
}
return ans;
}
long long dp[30][200000];
int main() {
//セグ木ってなんだっけ?
//ダブリングしましょう
iostream::sync_with_stdio(false);
cin.tie(0);
int n, query;
cin >> n >> query;
REP(i, 30) {
dp[i][n] = n;
}
vector<pair<long long, long long>> base_data;
REP(i, n) {
long long a;
cin >> a;
base_data.push_back(make_pair(a, i));
}
sort(base_data.begin(), base_data.end());
reverse(base_data.begin(), base_data.end());
set<long long> geko;
geko.insert(n);
for (int i = 0; i < base_data.size(); ++i) {
auto A = geko.lower_bound(base_data[i].second);
dp[0][base_data[i].second] = *A;
geko.insert(base_data[i].second);
}
for (int i = 1; i < 30; ++i) {
for (int q = 0; q < n; ++q) {
dp[i][q] = dp[i - 1][dp[i - 1][q]];
}
}
REP(i, query) {
int a, b;
cin >> a >> a >> b;
a--;
b--;
int ans = 0;
while (a <= b) {
for (int q = 0; q < 30; ++q) {
if (dp[q][a] > b) {
int move = max(q - 1, 0);
ans += 1 << move;
a = dp[move][a];
break;
}
}
}
cout << ans << endl;
}
}
kotamanegi