oj.uz

Submission #773558

# Submission time Handle Problem Language Result Execution time Memory
773558 2023-07-05T06:47:02 Z Filya Triple Jump (JOI19_jumps) C++14
19 / 100
 460 ms 123400 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/////////////////////
int arr[500005];
pii p[500005];
int st[500005][20];
int lg[500005];
ll dp[5005][5005];
ll qry(int l, int r) {
    int j = lg[r - l + 1];
    return max(st[l][j], st[r - (1 << j) + 1][j]);
}
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)});
}
int main() {
    fastio;
    int n, q, l, r; cin >> n; 
    fri(n) cin >> arr[i];
    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;
    cin >> q;
    if(n <= 5000) {
        rec(0, n-1);
        fri(q) {
            cin >> l >> r;
            l--; r--;
            cout << dp[l][r] << '\n';
        }
        return 0;
    } else {
        fri(n) p[i] = {arr[i], i};
        sort(alll(p)); reverse(alll(p));
        ll ans = 0;
        fri(3) {
            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, n-1));
            }
        }
        cout << ans;
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 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 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 656 KB Output is correct
10 Correct 1 ms 724 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 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 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 656 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 368 ms 123316 KB Output is correct
12 Correct 349 ms 123184 KB Output is correct
13 Correct 398 ms 123224 KB Output is correct
14 Correct 359 ms 123400 KB Output is correct
15 Correct 346 ms 123276 KB Output is correct
16 Correct 460 ms 122624 KB Output is correct
17 Correct 370 ms 122648 KB Output is correct
18 Correct 364 ms 122556 KB Output is correct
19 Correct 371 ms 123212 KB Output is correct

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 49 ms 19276 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 54.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 724 KB Output is correct
3 Correct 1 ms 724 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 724 KB Output is correct
8 Correct 1 ms 724 KB Output is correct
9 Correct 1 ms 656 KB Output is correct
10 Correct 1 ms 724 KB Output is correct
11 Correct 368 ms 123316 KB Output is correct
12 Correct 349 ms 123184 KB Output is correct
13 Correct 398 ms 123224 KB Output is correct
14 Correct 359 ms 123400 KB Output is correct
15 Correct 346 ms 123276 KB Output is correct
16 Correct 460 ms 122624 KB Output is correct
17 Correct 370 ms 122648 KB Output is correct
18 Correct 364 ms 122556 KB Output is correct
19 Correct 371 ms 123212 KB Output is correct
20 Incorrect 49 ms 19276 KB Output isn't correct
21 Halted 0 ms 0 KB -