oj.uz

답안 #552222

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
552222 2022-04-22T19:22:20 Z RaresFelix 3단 점프 (JOI19_jumps) C++17
100 / 100
 1084 ms 58784 KB 
#include <bits/stdc++.h>
#define MN 500071
using namespace std;
int n, q, A[MN];
vector<pair<int, int> > OG;
struct nod {
    int delta, origm, lazy_d;
    int val, ma;
};

nod V[4 * MN];

void init(int u = 1, int s = 1, int d = n) {
    if(s != d) {
        init(u << 1, s, (s + d) >> 1);
        init(u << 1 | 1, ((s + d) >> 1) + 1, d);
        V[u].origm = V[u].ma = V[u].val = max(V[u << 1].origm, V[u << 1 | 1].origm);
    } else {
        V[u].origm = V[u].val = V[u].ma = A[s];
    }
}

void prop(int u, int s, int d) {
    if(V[u].delta < V[u].lazy_d) {
        V[u].delta = V[u].lazy_d;
        V[u].val = V[u].delta + V[u].origm;
        V[u].ma = max({V[u].ma, V[u].val});
    }
    if(s != d) {
        V[u << 1].lazy_d = max(V[u << 1].lazy_d, V[u].lazy_d);
        V[u << 1 | 1].lazy_d = max(V[u << 1 | 1].lazy_d, V[u].lazy_d);
    }
    V[u].lazy_d = 0;
}

void update(int val, int l, int r, int u = 1, int s = 1, int d = n) {
    prop(u, s, d);
    if(d < l || r < s) return;
    if(l <= s && d <= r) {
        V[u].lazy_d = val;
        prop(u, s, d);
        return;
    }
    update(val, l, r, u << 1, s, (s + d) >> 1);
    update(val, l, r, u << 1 | 1, ((s + d) >> 1) + 1, d);
    V[u].ma = max({V[u].val, V[u].ma, V[u << 1].ma, V[u << 1 | 1].ma});
}

int query(int l, int r, int u = 1, int s = 1, int d = n) {
    if(d < l || r < s) return 0;
    prop(u, s, d);
    if(l <= s && d <= r) return V[u].ma;
    return max(query(l, r, u << 1, s, (s + d) >> 1), query(l, r, u << 1 | 1, ((s + d) >> 1) + 1, d));
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> A[i];
    stack<int> S;
    init();
    for(int i = 1; i <= n; ++i) {
        while(!S.empty() && A[i] > A[S.top()]) {
            OG.push_back({S.top(), i});
            S.pop();
        }
        if(!S.empty()) OG.push_back({S.top(), i});
        S.push(i);
    }
    cin >> q;
    vector<tuple<int, int, int> > Q;
    for(int i = 1, st, dr; i <= q; ++i)
        cin >> st >> dr, Q.push_back({st, dr, i});
    vector<int> R(q + 1);
    sort(Q.rbegin(), Q.rend());
    sort(OG.rbegin(), OG.rend());
    auto it = OG.begin();
    for(auto [l, r, id] : Q) {
        while(it != OG.end() && it->first >= l) {
            update(A[it->first] + A[it->second], it->second * 2 - it->first, n);
            //printf("Update de valoare %d de la %d la n\n", A[it->first] + A[it->second], it->second * 2 - it->first);
            ++it;
        }
        R[id] = query(l, r);
    }
    for(int i = 1; i <= q; ++i) cout << R[i] << "\n";
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 330 ms 18376 KB Output is correct
12 Correct 328 ms 18340 KB Output is correct
13 Correct 356 ms 18208 KB Output is correct
14 Correct 381 ms 18412 KB Output is correct
15 Correct 338 ms 18408 KB Output is correct
16 Correct 357 ms 17832 KB Output is correct
17 Correct 312 ms 17644 KB Output is correct
18 Correct 362 ms 17716 KB Output is correct
19 Correct 391 ms 18292 KB Output is correct

Subtask #3
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 194 ms 17348 KB Output is correct
2 Correct 111 ms 15224 KB Output is correct
3 Correct 107 ms 15608 KB Output is correct
4 Correct 186 ms 17360 KB Output is correct
5 Correct 206 ms 17364 KB Output is correct
6 Correct 219 ms 16704 KB Output is correct
7 Correct 187 ms 16508 KB Output is correct
8 Correct 183 ms 16580 KB Output is correct
9 Correct 202 ms 16836 KB Output is correct

Subtask #4
54.0 / 54.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 330 ms 18376 KB Output is correct
12 Correct 328 ms 18340 KB Output is correct
13 Correct 356 ms 18208 KB Output is correct
14 Correct 381 ms 18412 KB Output is correct
15 Correct 338 ms 18408 KB Output is correct
16 Correct 357 ms 17832 KB Output is correct
17 Correct 312 ms 17644 KB Output is correct
18 Correct 362 ms 17716 KB Output is correct
19 Correct 391 ms 18292 KB Output is correct
20 Correct 194 ms 17348 KB Output is correct
21 Correct 111 ms 15224 KB Output is correct
22 Correct 107 ms 15608 KB Output is correct
23 Correct 186 ms 17360 KB Output is correct
24 Correct 206 ms 17364 KB Output is correct
25 Correct 219 ms 16704 KB Output is correct
26 Correct 187 ms 16508 KB Output is correct
27 Correct 183 ms 16580 KB Output is correct
28 Correct 202 ms 16836 KB Output is correct
29 Correct 1084 ms 58648 KB Output is correct
30 Correct 802 ms 51520 KB Output is correct
31 Correct 800 ms 53580 KB Output is correct
32 Correct 1045 ms 58644 KB Output is correct
33 Correct 1002 ms 58644 KB Output is correct
34 Correct 1038 ms 56372 KB Output is correct
35 Correct 1033 ms 56044 KB Output is correct
36 Correct 1016 ms 55988 KB Output is correct
37 Correct 1049 ms 57520 KB Output is correct
38 Correct 868 ms 58652 KB Output is correct
39 Correct 827 ms 58696 KB Output is correct
40 Correct 826 ms 55268 KB Output is correct
41 Correct 855 ms 54908 KB Output is correct
42 Correct 839 ms 54924 KB Output is correct
43 Correct 831 ms 56560 KB Output is correct
44 Correct 890 ms 58660 KB Output is correct
45 Correct 898 ms 58784 KB Output is correct
46 Correct 856 ms 55504 KB Output is correct
47 Correct 860 ms 55108 KB Output is correct
48 Correct 925 ms 55148 KB Output is correct
49 Correct 860 ms 57088 KB Output is correct
50 Correct 957 ms 58728 KB Output is correct
51 Correct 903 ms 58712 KB Output is correct
52 Correct 914 ms 56180 KB Output is correct
53 Correct 910 ms 55920 KB Output is correct
54 Correct 931 ms 56044 KB Output is correct
55 Correct 936 ms 57596 KB Output is correct