oj.uz

답안 #166940

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
166940 2019-12-04T17:56:37 Z dandrozavr Bigger segments (IZhO19_segments) C++14
100 / 100
 108 ms 17400 KB 
/*
Uruchamiamy samolot zwiadowczy ( + 500% do wzlamaniej )

/▄/  /█/  /◐/   /▐/   /▌/ /▀/ /░/ /🔥/   choose  own style!

***IT'S OUR LONG WAY TO THE OIILLLL***


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*/



//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")

#include <bits/stdc++.h>

using namespace std;
#include <ext/pb_ds/detail/standard_policies.hpp>'
#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 pb push_back
#define ll long long
#define ld long double
#define fi first
#define se second
//#define pi 3.14159265358979323846
#define pii pair < ll , int >
#define pipii pair< int, pair < int , int > >
#define siz(n) (int)(n.size())
#define TIME 1.0 * clock() / CLOCKS_PER_SEC

const int inf=1e9 + 7;
const ll inf18=1e18 + 7;
const int N=1e5 + 7;
const int MN = 2097152;
const int M = 1e9 + 7;
int k, n, m, st, en;

vector < pii > g[N];

int main() {

    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    #ifdef Estb_probitie
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    int n;
    cin >> n;
    int a[n];
    ll pref[n] = {};

    for (int i = 0; i < n; ++i)
        cin >> a[i];
    pref[0] = a[0];
    for (int i = 1; i < n; ++i)
        pref[i] = pref[i - 1] + a[i];

    int dp[n] = {};
    int st[n] = {};
    dp[0] = 1;
    st[0] = 0;
    int ans = 0;

    for (int i = 0; i < n; ++i)
    {
        if (i)
            if (dp[i] < dp[i - 1])
            {
                dp[i] = dp[i - 1];
                st[i] = st[i - 1];
            }
        if (i)
            if (dp[i] == dp[i - 1] && st[i - 1] > st[i])
              st[i] = st[i - 1];

        ans = max(ans, dp[i]);
        ll ousum = pref[i];
        if (st[i])
            ousum -= pref[st[i] - 1];

        int l = i + 1, r = n;
        while(l < r)
        {
            int mid = (l + r) >> 1;
            if (pref[mid] - pref[i] < ousum)
                l = mid + 1; else r = mid;
        }
        if (l == n) continue;
        dp[l] = dp[i] + 1;
        st[l] = i + 1;
    }

    cout << ans;
}

Compilation message

segments.cpp:35:50: warning: missing terminating ' character
 #include <ext/pb_ds/detail/standard_policies.hpp>'
                                                  ^
segments.cpp:35:50: warning: extra tokens at end of #include directive

Subtask #1
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2680 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2680 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2680 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2680 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2680 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2680 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 4 ms 2808 KB Output is correct
34 Correct 5 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2680 KB Output is correct
38 Correct 5 ms 2680 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 4 ms 2680 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 4 ms 2724 KB Output is correct
44 Correct 4 ms 2808 KB Output is correct
45 Correct 4 ms 2808 KB Output is correct

Subtask #4
36.0 / 36.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2680 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2680 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2680 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 4 ms 2808 KB Output is correct
34 Correct 5 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2680 KB Output is correct
38 Correct 5 ms 2680 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 4 ms 2680 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 4 ms 2724 KB Output is correct
44 Correct 4 ms 2808 KB Output is correct
45 Correct 4 ms 2808 KB Output is correct
46 Correct 17 ms 5096 KB Output is correct
47 Correct 21 ms 5100 KB Output is correct
48 Correct 22 ms 5496 KB Output is correct
49 Correct 22 ms 5624 KB Output is correct
50 Correct 22 ms 5624 KB Output is correct
51 Correct 25 ms 5624 KB Output is correct
52 Correct 15 ms 4088 KB Output is correct
53 Correct 10 ms 3576 KB Output is correct
54 Correct 17 ms 4856 KB Output is correct
55 Correct 25 ms 5624 KB Output is correct
56 Correct 17 ms 5112 KB Output is correct
57 Correct 18 ms 5012 KB Output is correct
58 Correct 19 ms 5112 KB Output is correct
59 Correct 18 ms 5240 KB Output is correct
60 Correct 19 ms 5240 KB Output is correct

Subtask #5
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 4 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2680 KB Output is correct
6 Correct 4 ms 2680 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2680 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2680 KB Output is correct
17 Correct 4 ms 2680 KB Output is correct
18 Correct 4 ms 2680 KB Output is correct
19 Correct 4 ms 2680 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 4 ms 2680 KB Output is correct
22 Correct 4 ms 2680 KB Output is correct
23 Correct 4 ms 2680 KB Output is correct
24 Correct 4 ms 2680 KB Output is correct
25 Correct 4 ms 2680 KB Output is correct
26 Correct 4 ms 2680 KB Output is correct
27 Correct 4 ms 2680 KB Output is correct
28 Correct 4 ms 2680 KB Output is correct
29 Correct 4 ms 2680 KB Output is correct
30 Correct 4 ms 2680 KB Output is correct
31 Correct 4 ms 2812 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 4 ms 2808 KB Output is correct
34 Correct 5 ms 2808 KB Output is correct
35 Correct 5 ms 2808 KB Output is correct
36 Correct 5 ms 2808 KB Output is correct
37 Correct 5 ms 2680 KB Output is correct
38 Correct 5 ms 2680 KB Output is correct
39 Correct 4 ms 2808 KB Output is correct
40 Correct 5 ms 2808 KB Output is correct
41 Correct 4 ms 2680 KB Output is correct
42 Correct 5 ms 2680 KB Output is correct
43 Correct 4 ms 2724 KB Output is correct
44 Correct 4 ms 2808 KB Output is correct
45 Correct 4 ms 2808 KB Output is correct
46 Correct 17 ms 5096 KB Output is correct
47 Correct 21 ms 5100 KB Output is correct
48 Correct 22 ms 5496 KB Output is correct
49 Correct 22 ms 5624 KB Output is correct
50 Correct 22 ms 5624 KB Output is correct
51 Correct 25 ms 5624 KB Output is correct
52 Correct 15 ms 4088 KB Output is correct
53 Correct 10 ms 3576 KB Output is correct
54 Correct 17 ms 4856 KB Output is correct
55 Correct 25 ms 5624 KB Output is correct
56 Correct 17 ms 5112 KB Output is correct
57 Correct 18 ms 5012 KB Output is correct
58 Correct 19 ms 5112 KB Output is correct
59 Correct 18 ms 5240 KB Output is correct
60 Correct 19 ms 5240 KB Output is correct
61 Correct 75 ms 14480 KB Output is correct
62 Correct 82 ms 14428 KB Output is correct
63 Correct 94 ms 14840 KB Output is correct
64 Correct 100 ms 17016 KB Output is correct
65 Correct 94 ms 17272 KB Output is correct
66 Correct 108 ms 17272 KB Output is correct
67 Correct 89 ms 14456 KB Output is correct
68 Correct 50 ms 8696 KB Output is correct
69 Correct 74 ms 13560 KB Output is correct
70 Correct 103 ms 17400 KB Output is correct
71 Correct 69 ms 14456 KB Output is correct
72 Correct 78 ms 14740 KB Output is correct
73 Correct 80 ms 15352 KB Output is correct
74 Correct 79 ms 15736 KB Output is correct
75 Correct 80 ms 15776 KB Output is correct