| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 946662 |
2024-03-14T21:23:38 Z |
xynex |
Triple Jump (JOI19_jumps) |
C++17 |
|
59 ms |
58556 KB |
/**
* Author: Tenjin
* Created: 27.04.2022 18:58
* Why am I so stupid? :c
* Slishkom slab
**/
#include <bits/stdc++.h>
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse,-fgcse-lm")
#pragma GCC optimize("-ftree-pre,-ftree-vrp")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("Ofast,no-stack-protector")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
using namespace std;
#define ll long long
#define dl double long
#define ull unsigned long long
#define pr pair
#define vt vector
#define ff first
#define ss second
#define mp make_pair
#define sz(a) (int)a.size()
#define pb push_back
#define pf push_front
#define popB pop_back
#define popF pop_front
#define bit_count __builtin_popcount
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sp(x) fixed << setprecision(x)
template<typename T> T get_rand(T l, T r) {
random_device rd;
mt19937 gen(rd());
return uniform_int_distribution<T>(l, r)(gen);
}
template<typename T> T lcm(T a, T b) { return a * (b / __gcd(a, b)); }
template<class A> void read(vt<A>& v);
template<class A, size_t S> void read(array<A, S>& a);
template<class T> void read(T& x) { cin >> x; }
void read(double& d) { string t; read(t); d = stod(t); }
void read(long double& d) { string t; read(t); d = stold(t); }
template<class H, class... T> void read(H& h, T&... t) { read(h); read(t...); }
template<class A> void read(vt<A>& x) { for (auto& a : x) read(a); }
template<class A, size_t S> void read(array<A, S>& x) { for (auto& a : x) read(a); }
string to_string(char c) { return string(1, c); }
string to_string(bool b) { return b ? "true" : "false"; }
string to_string(const char* s) { return string(s); }
string to_string(string s) { return s; }
string to_string(vt<bool> v) { string res; for (int i = 0; i < sz(v); ++i) res += char('0' + v[i]); return res; }
template<size_t S> string to_string(bitset<S> b) { string res; for (int i = 0; i < S; ++i) res += char('0' + b[i]); return res; }
template<class T> string to_string(T v) { bool f = 1; string res; for (auto x : v) { if (!f) res += ' '; f = 0; res += to_string(x); } return res; }
template<class A> void write(A x) { cout << to_string(x); }
template<class H, class... T> void write(const H& h, const T&... t) { write(h); write(t...); }
void print() { write("\n"); }
template<class H, class... T> void print(const H& h, const T&... t) { write(h); if (sizeof...(t)) write(' '); print(t...); }
void freop(string s) {
freopen((s + ".in").c_str(), "r", stdin);
freopen((s + ".out").c_str(), "w", stdout);
}
const int MOD = 1e9 + 7;
const ll INF = 1e14;
const dl pi = acos(-1);
const dl eps = 1e-12;
const int sq = 700;
int dx[] = {-1, 0, 1, 0};
int dy[] = {0, -1, 0, 1};
/* ll vs int*/
const int N = 1e6 + 5;
const int M = 2e6 + 6;
int n;
struct seg {
class Node {
public:
int mx, frst, lst;
Node() { mx = -1, frst = -1, lst = -1; }
Node(int x, int y, int z) { mx = x; frst = y, lst = z; }
Node max(Node x, Node y) {
if(y.mx > x.mx) {
return y;
}
else if(y.mx < x.mx) {
return x;
}
else {
Node nw = *new Node(x.mx, y.frst > x.frst ? x.frst : y.frst, y.lst > x.lst ? y.lst : x.lst);
return nw;
}
}
} t[N << 2];
void upd(int pos, int val, int tl = 1, int tr = n, int v = 1) {
if(tl == tr) {
t[v] = *new Node(val, tl, tl);
}
else {
int mid = (tl + tr) >> 1;
if(mid >= pos) upd(pos, val, tl, mid, v * 2);
else upd(pos, val, mid + 1, tr, v * 2 + 1);
t[v] = t[v].max(t[v * 2], t[v * 2 + 1]);
}
}
Node get(int l, int r, int tl = 1, int tr = n, int v = 1) {
if(tl > r || tr < l) {
return *new Node();
}
if(tl >= l && tr <= r) return t[v];
int mid = (tl + tr) >> 1;
Node nw = nw.max(get(l, r, tl, mid, v * 2), get(l, r, mid + 1, tr, v * 2 + 1));
return nw;
}
} tree;
/*
*/
int a[N];
void solve() {
read(n);
for(int i = 1; i <= n; ++i) {
read(a[i]);
tree.upd(i, a[i]);
}
int q; read(q);
while(q--) {
int l, r; read(l, r);
int ans = 0;
seg::Node cur = tree.get(l, r);
// print(cur.frst, cur.lst);
if(cur.frst < r) {
seg::Node sec = tree.get(cur.frst + 1, r);
seg::Node thr = tree.get(cur.frst + 1, min(r, cur.frst + (sec.lst - cur.frst) / 2));
//print(cur.frst, sec.lst - (sec.lst - cur.frst + 1) / 2, cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
thr = tree.get(sec.frst + sec.frst - cur.frst, r);
// print(cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
if(cur.lst < r) {
seg::Node sec = tree.get(cur.lst + 1, r);
//print(sec.frst, sec.lst);
seg::Node thr = tree.get(cur.lst + 1, min(r, cur.lst + (sec.lst - cur.lst) / 2));
//print(thr.frst, thr.lst, min(r, cur.lst + (sec.lst - cur.lst) / 2));
//print(cur.frst, sec.lst - (sec.lst - cur.frst + 1) / 2, cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
thr = tree.get(sec.frst + sec.frst - cur.lst, r);
// print(cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
// print(ans);
if(cur.frst > l) {
seg::Node sec = tree.get(l, cur.frst - 1);
seg::Node thr = tree.get(sec.frst + 1, sec.frst + (cur.frst - sec.frst) / 2);
// print(cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
thr = tree.get(max(l, sec.frst - cur.frst + sec.frst), sec.frst - 1);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
// print(ans);
if(cur.lst > l) {
seg::Node sec = tree.get(l, cur.lst - 1);
seg::Node thr = tree.get(sec.frst + 1, sec.frst + (cur.lst - sec.frst) / 2);
// print(cur.mx, sec.mx, thr.mx);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
thr = tree.get(max(l, sec.frst - cur.lst + sec.frst), sec.frst - 1);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
// print(ans);
if(cur.frst < r) {
seg::Node sec = tree.get(cur.frst + 1, r);
seg::Node thr = tree.get(max(l, cur.frst - sec.lst + cur.frst), cur.frst - 1);
// print(sec.frst, sec.lst);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
// print(ans);
if(cur.lst < r) {
seg::Node sec = tree.get(cur.lst + 1, r);
seg::Node thr = tree.get(max(l, cur.lst - sec.lst + cur.lst), cur.lst - 1);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
if(cur.frst > l) {
seg::Node sec = tree.get(l, cur.frst - 1);
seg::Node thr = tree.get(cur.frst + cur.frst - sec.lst, r);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
if(cur.lst > l) {
seg::Node sec = tree.get(l, cur.lst - 1);
seg::Node thr = tree.get(cur.lst + cur.lst - sec.lst, r);
if(cur.mx != -1 && sec.mx != -1 && thr.mx != -1) ans = max(ans, cur.mx + sec.mx + thr.mx);
}
print(ans);
}
}
int main() {
srand(time(NULL));
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
//freop("x");
int t = 1;
//read(t);
for (int i = 1; i <= t; ++i) {
//write("Case #" + to_string(i) + ": ");
solve();
}
return 0;
}
Compilation message
jumps.cpp: In function 'void freop(std::string)':
jumps.cpp:72:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
72 | freopen((s + ".in").c_str(), "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
jumps.cpp:73:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
73 | freopen((s + ".out").c_str(), "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
48984 KB |
Output is correct |
| 2 |
Incorrect |
12 ms |
49244 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
48984 KB |
Output is correct |
| 2 |
Incorrect |
12 ms |
49244 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
52 ms |
58448 KB |
Output is correct |
| 2 |
Correct |
59 ms |
58396 KB |
Output is correct |
| 3 |
Correct |
48 ms |
58556 KB |
Output is correct |
| 4 |
Incorrect |
52 ms |
58444 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
48984 KB |
Output is correct |
| 2 |
Incorrect |
12 ms |
49244 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
