Submission #1085397

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085397		steveonalex	Triple Jump (JOI19_jumps)	C++17	5 / 100	4066 ms	4980 KiB

jumps

// #include "rect.h"
#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
#define block_of_code if(true)
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
double rngesus_d(double l, double r){
    double cur = rngesus(0, MASK(60) - 1);
    cur /= MASK(60) - 1;
    return l + cur * (r - l);
}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

const int INF = 2e9 + 69;

struct SegmentTree{
    int n;
    vector<pair<int, int>> a;

    SegmentTree(int _n){
        n = _n;
        a.resize(n * 2 + 2, {-INF, 0});
    }

    void update(int i, pair<int, int> v){
        i += n; a[i] = v;
        while(i > 1){
            i >>= 1;
            a[i] = max(a[i * 2], a[i * 2 + 1]);
        }
    }

    pair<int, int> get(int l, int r){
        l += n; r += n + 1;
        pair<int, int> ans = {-INF, 0};
        while(l < r){
            if (l & 1) maximize(ans, a[l++]);
            if (r & 1) maximize(ans, a[--r]);
            l >>= 1; r >>= 1;
        }
        return ans;
    }
};

const int NECESSARY = 20;
const int N = 2e5 + 69, LOG_N = 18;
int rmq[LOG_N][N];

int get(int l, int r){
    if (l > r) return -INF;
    int j = logOf(r - l + 1);
    return max(rmq[j][l], rmq[j][r - MASK(j) + 1]);
}

int main(void){
    ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
    clock_t start = clock();

    int n; cin >> n;
    vector<ll> a(n+1);
    for(int i = 1; i<=n; ++i) cin >> a[i];

    int q; cin >> q;

    while(q--){
        int l, r; cin >> l >> r;
        vector<ll> b = a;
        for(int i = r-1; i >= l; --i) maximize(b[i], b[i+1]);

        ll ans = 0;
        for(int i = l; i <= r; ++i) for(int j = i + 1; j + (j - i) <= r; ++j){
            int k = j + (j - i);
            maximize(ans, a[i] + a[j] + b[k]); 
        }
        cout << ans << "\n";
    }



    cerr << "Time elapsed: " << clock() - start << " ms\n";
    return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 14
• Subtask 3: 0 / 27
• Subtask 4: 0 / 54