oj.uz

답안 #773631

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
773631 2023-07-05T07:25:06 Z Filya 3단 점프 (JOI19_jumps) C++14
19 / 100
 4000 ms 124132 KB 
//♥God will make a way♥

//#include <bits/stdc++.h>
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <algorithm>
#include <cmath>
#include <cstring>
#include <cassert>
#include <set>
#include <map>
#include <unordered_map>
#include <vector>
#include <stack>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stdio.h>
#include <climits>
#include <numeric>
using namespace std;
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//template <typename T>
//using ordered_set = tree <T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
/////////////////////define/////////////////////
#define ci(x) if(x) cout << "YES" << '\n'; else cout << "NO" << '\n';
#define cii(x) if(check(x))
#define MOD 1000000007
#define MOD2 998244353
#define oo 1e9
#define ool 1e18L
#define pii pair<int, int>
#define pll pair<long long, long long>
#define mii map<int, int>
#define vi vector<int>
#define vpi vector<pair<int, int>>
#define vll vector <ll>
#define ff first
#define ss second
#define mp make_pair
#define ll long long
#define ld long double
#define pb push_back
#define eb emplace_back
#define pob pop_back
#define lb lower_bound
#define ub upper_bound
#define bs binary_search
#define sz(x) (int((x).size()))
#define all(x) (x).begin(), (x).end()
#define alll(x) (x), (x) + n
#define clr(x) (x).clear();
#define fri(x) for(int i = 0; i < x; ++i)
#define frj(x) for(int j = 0; j < x; ++j)
#define frp(x) for(int p = 0; p < x; ++p)
#define frr(a, b) for(int i = a; i < b; ++i)
#define frrj(a, b) for(int j = a; j < b; ++j)
#define fra(x) for(int i = 0; i < x; ++i) cin >> a[i];
#define frb(x) for(int i = 0; i < x; ++i) cin >> b[i];
#define frs(x) for(auto it = x.begin(); it != x.end(); ++it)
#define fr(x) for(auto it : x) //el
#define fastio ios_base::sync_with_stdio(false); cin.tie(0);
#define dbg(x) cerr << #x << ": " << x << endl;
#define ce(x) cout << x << endl;
#define uniq(x) x.resize(unique(all(x)) - x.begin()); //make all one after sorting
#define blt __builtin_popcount
/////////////////////print array, vector, deque, set, multiset, pair, map /////////////////////
void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]"; cout << endl;}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(stack <T> v) {cerr << "[ "; stack<T> s = v; while(s.size()) {T i = s.top(); print(i); s.pop(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(queue <T> v) {cerr << "[ "; queue<T> s = v; while(s.size()) {T i = s.front(); print(i); s.pop(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T> void print(deque <T> v) {cerr << "[ "; deque<T> s = v; while(s.size()) {T i = s.front(); print(i); s.pop_front(); cerr << " ";} cerr << "]"; cout << endl;}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
template <class T, class V> void print(unordered_map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]"; cout << endl;}
/////////////////////code/////////////////////
ll arr[500005], n, q;
ll st[500005][23];
ll lg[500005];
ll qry(int l, int r) {
    int j = lg[r - l + 1];
    return max(st[l][j], st[r - (1 << j) + 1][j]);
}
void precalc() {
    fri(n) st[i][0] = arr[i];
    for (int j = 1; j <= 19; j++)
        for (int i = 0; i + (1 << j) <= n; i++)
            st[i][j] = max(st[i][j - 1], st[i + (1 << (j - 1))][j - 1]);
    lg[1] = 0;
    for (int i = 2; i <= n; i++)
        lg[i] = lg[i / 2] + 1;
}
ll dp[5005][5005];
ll rec(int l, int r) {
    if(dp[l][r]) return dp[l][r];
    if(r-l == 2) return dp[l][r] = arr[l] + arr[l+1] + arr[r];
    return dp[l][r] = max({rec(l+1, r), rec(l, r-1), arr[l] + arr[r] + qry(l+1, (l+r)/2)});
}
void s1() {
    int l, r;
    rec(0, n-1);
    fri(q) {
        cin >> l >> r;
        l--; r--;
        cout << dp[l][r] << '\n';
    }
}
pii p[500005];
int main() {
    fastio;
    int l, r; cin >> n; 
    fri(n) cin >> arr[i];
    precalc();
    cin >> q;
    if(n <= 5000) {
        s1();
        return 0;
    } else {
        fri(q) cin >> l >> r;
        fri(n) p[i] = {arr[i], i};
        sort(alll(p)); reverse(alll(p));
        ll ans = 0;
        fri(2000) {
            int a = p[i].ss, b, c;
            //dzaxinna
            for(b = a+1; b < n && 2*b-a < n; b++)
                ans = max(ans, arr[a] + arr[b] + qry(2*b-a, n-1));
            //mejtexinna
            b = p[i].ss;
            for(a = b-1; a >= 0 && 2*b-a < n; a--)
                ans = max(ans, arr[a] + arr[b] + qry(2*b-a, n-1));
            //verjinna
            c = p[i].ss;
            for(b = c-1; b >= 0 && 2*b-c >= 0; b--)
                ans = max(ans, arr[b] + arr[c] + qry(2*b-c, b-1));
        }
        cout << ans;
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 720 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 712 KB Output is correct
8 Correct 1 ms 708 KB Output is correct
9 Correct 1 ms 712 KB Output is correct
10 Correct 1 ms 724 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 720 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 712 KB Output is correct
8 Correct 1 ms 708 KB Output is correct
9 Correct 1 ms 712 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 357 ms 124028 KB Output is correct
12 Correct 398 ms 123980 KB Output is correct
13 Correct 353 ms 124076 KB Output is correct
14 Correct 357 ms 124036 KB Output is correct
15 Correct 346 ms 124132 KB Output is correct
16 Correct 421 ms 123420 KB Output is correct
17 Correct 406 ms 123444 KB Output is correct
18 Correct 354 ms 123348 KB Output is correct
19 Correct 362 ms 124036 KB Output is correct

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3780 ms 41484 KB Output is correct
2 Correct 2661 ms 41160 KB Output is correct
3 Correct 3180 ms 41156 KB Output is correct
4 Correct 3991 ms 41156 KB Output is correct
5 Execution timed out 4027 ms 41160 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 720 KB Output is correct
4 Correct 1 ms 724 KB Output is correct
5 Correct 1 ms 724 KB Output is correct
6 Correct 1 ms 724 KB Output is correct
7 Correct 1 ms 712 KB Output is correct
8 Correct 1 ms 708 KB Output is correct
9 Correct 1 ms 712 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 357 ms 124028 KB Output is correct
12 Correct 398 ms 123980 KB Output is correct
13 Correct 353 ms 124076 KB Output is correct
14 Correct 357 ms 124036 KB Output is correct
15 Correct 346 ms 124132 KB Output is correct
16 Correct 421 ms 123420 KB Output is correct
17 Correct 406 ms 123444 KB Output is correct
18 Correct 354 ms 123348 KB Output is correct
19 Correct 362 ms 124036 KB Output is correct
20 Correct 3780 ms 41484 KB Output is correct
21 Correct 2661 ms 41160 KB Output is correct
22 Correct 3180 ms 41156 KB Output is correct
23 Correct 3991 ms 41156 KB Output is correct
24 Execution timed out 4027 ms 41160 KB Time limit exceeded
25 Halted 0 ms 0 KB -