oj.uz

답안 #493915

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
493915 2021-12-13T11:03:32 Z TeaTime Bigger segments (IZhO19_segments) C++17
100 / 100
 159 ms 49252 KB 
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <set>

using namespace std;

typedef long long ll;
typedef long double ld;

#define fastInp cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);

const ll SZ = 5e5 + 1000, INF = 1e9 * 1e6 + 100, LG = 20;

vector<ll> vec, pref;

ll dp[SZ], dp2[SZ];

ll seg[SZ * 4];

void upd(int v, int l, int r, int pos, ll val) {
    if (l == r - 1) {
        seg[v] = val;
    } else {
        int mid = (l + r) / 2;
        if (pos < mid) {
            upd(v * 2 + 1, l, mid, pos, val);
        } else {
            upd(v * 2 + 2, mid, r, pos, val);
        }

        seg[v] = min(seg[v * 2 + 1], seg[v * 2 + 2]);
    }
}

ll ask(int v, int l, int r, int askl, int askr) {
    if (l >= askr || askl >= r) return INF;

    if (askl <= l && r <= askr) return seg[v];

    int mid = (l + r) / 2;
    return min(ask(v * 2 + 1, l, mid, askl, askr), ask(v * 2 + 2, mid, r, askl, askr));
}

int main()
{
    fastInp;

    ll n;
    cin >> n;

    vec.resize(n);
    pref.push_back(0);
    for (auto& c : vec) cin >> c;
    for (auto c : vec) pref.push_back(pref.back() + c);

    ll mn = 0, dif = 0, a2 = 0;
    set<pair<ll, ll>> st;

    for (int i = 1; i <= n; i++) {
        mn += vec[i - 1];
        dif += vec[i - 1];

        while (st.size() > 0 && dp[(*st.begin()).second] <= pref[i] - pref[(*st.begin()).second]) {
            mn = min(mn, pref[i] - pref[(*st.begin()).second]);
            a2 = max(a2, dp2[(*st.begin()).second] + 1);
            st.erase(st.begin());
        }
        dp[i] = mn;
        dp2[i] = a2;
        st.insert({ dp[i] + dif, i });
    }

    cout << dp2[n] + 1;

    return 0;
}

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 588 KB Output is correct
32 Correct 2 ms 496 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 588 KB Output is correct
32 Correct 2 ms 496 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 30 ms 10000 KB Output is correct
47 Correct 26 ms 4492 KB Output is correct
48 Correct 20 ms 4396 KB Output is correct
49 Correct 16 ms 4936 KB Output is correct
50 Correct 15 ms 4508 KB Output is correct
51 Correct 23 ms 4552 KB Output is correct
52 Correct 11 ms 2436 KB Output is correct
53 Correct 7 ms 1616 KB Output is correct
54 Correct 18 ms 3712 KB Output is correct
55 Correct 20 ms 4576 KB Output is correct
56 Correct 12 ms 4084 KB Output is correct
57 Correct 20 ms 6416 KB Output is correct
58 Correct 17 ms 5572 KB Output is correct
59 Correct 12 ms 4148 KB Output is correct
60 Correct 15 ms 4100 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 0 ms 320 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 320 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 0 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 588 KB Output is correct
32 Correct 2 ms 496 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 460 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 460 KB Output is correct
40 Correct 1 ms 460 KB Output is correct
41 Correct 1 ms 460 KB Output is correct
42 Correct 1 ms 460 KB Output is correct
43 Correct 1 ms 460 KB Output is correct
44 Correct 1 ms 460 KB Output is correct
45 Correct 1 ms 460 KB Output is correct
46 Correct 30 ms 10000 KB Output is correct
47 Correct 26 ms 4492 KB Output is correct
48 Correct 20 ms 4396 KB Output is correct
49 Correct 16 ms 4936 KB Output is correct
50 Correct 15 ms 4508 KB Output is correct
51 Correct 23 ms 4552 KB Output is correct
52 Correct 11 ms 2436 KB Output is correct
53 Correct 7 ms 1616 KB Output is correct
54 Correct 18 ms 3712 KB Output is correct
55 Correct 20 ms 4576 KB Output is correct
56 Correct 12 ms 4084 KB Output is correct
57 Correct 20 ms 6416 KB Output is correct
58 Correct 17 ms 5572 KB Output is correct
59 Correct 12 ms 4148 KB Output is correct
60 Correct 15 ms 4100 KB Output is correct
61 Correct 159 ms 49252 KB Output is correct
62 Correct 139 ms 33520 KB Output is correct
63 Correct 118 ms 24168 KB Output is correct
64 Correct 89 ms 20660 KB Output is correct
65 Correct 72 ms 20920 KB Output is correct
66 Correct 112 ms 20840 KB Output is correct
67 Correct 87 ms 16852 KB Output is correct
68 Correct 43 ms 8652 KB Output is correct
69 Correct 87 ms 17148 KB Output is correct
70 Correct 102 ms 20960 KB Output is correct
71 Correct 52 ms 18156 KB Output is correct
72 Correct 102 ms 30832 KB Output is correct
73 Correct 73 ms 23604 KB Output is correct
74 Correct 59 ms 19304 KB Output is correct
75 Correct 65 ms 19380 KB Output is correct