답안 #344371

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
344371	2021-01-05T14:47:14 Z	Redhood	Bigger segments (IZhO19_segments)	C++14	100 / 100	142 ms	47724 KB

segments

#include<bits/stdc++.h>

#define fi first
#define se second
#define all(x) (x).begin() , (x).end()
#define rall(x) (x).rbegin() , (x).rend()
#define pb push_back
#define len(x) (int)(x).size()


using namespace std;

typedef long long ll;
typedef long double ld;

#define int long long
signed main(){
    ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0);
    int n;
    cin >> n;
    vector < int > a(n);
    for(auto &i : a)
        cin >> i;
    vector < ll > pref(n + 1);
    for(int i = 0; i < n; ++i){
        pref[i + 1] = pref[i] + a[i];
    }


    vector < pair < int , int > > dp(n + 1 , {0 , 0});
    dp[0] = {0 , 0};


    vector < vector < int > > add(n + 2);

    pair < int , int > cur = {0 , 0};
    for(int i = 0; i <= n; ++i){
        /// lulz
        /// calc dp
        if(i != 0){
            for(auto u : add[i])
                if(cur.fi < dp[u].fi + 1)
                    cur.fi = dp[u].fi + 1 , cur.se = u;
                else if(cur.fi == dp[u].fi + 1)
                    cur.se = max(cur.se , u);
            dp[i] = {cur.fi , pref[i] - pref[cur.se]};
        }
        int frst = lower_bound(all(pref) , pref[i]+dp[i].se) - pref.begin();
        frst = max(frst , i + 1);
        add[frst].pb(i);
    }
//    cout << " DP \n";
//    for(int i = 0; i <= n; ++i){
//        cout << dp[i].fi << ' ' << dp[i].se << '\n';
//    }
    cout << dp[n].fi << '\n';
    return 0;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	0 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	0 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	396 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	0 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	396 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	620 KB	Output is correct
32	Correct	1 ms	620 KB	Output is correct
33	Correct	1 ms	620 KB	Output is correct
34	Correct	1 ms	620 KB	Output is correct
35	Correct	1 ms	620 KB	Output is correct
36	Correct	1 ms	620 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	620 KB	Output is correct
40	Correct	1 ms	620 KB	Output is correct
41	Correct	1 ms	620 KB	Output is correct
42	Correct	1 ms	620 KB	Output is correct
43	Correct	1 ms	620 KB	Output is correct
44	Correct	1 ms	620 KB	Output is correct
45	Correct	1 ms	620 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	0 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	396 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	620 KB	Output is correct
32	Correct	1 ms	620 KB	Output is correct
33	Correct	1 ms	620 KB	Output is correct
34	Correct	1 ms	620 KB	Output is correct
35	Correct	1 ms	620 KB	Output is correct
36	Correct	1 ms	620 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	620 KB	Output is correct
40	Correct	1 ms	620 KB	Output is correct
41	Correct	1 ms	620 KB	Output is correct
42	Correct	1 ms	620 KB	Output is correct
43	Correct	1 ms	620 KB	Output is correct
44	Correct	1 ms	620 KB	Output is correct
45	Correct	1 ms	620 KB	Output is correct
46	Correct	15 ms	7404 KB	Output is correct
47	Correct	21 ms	8172 KB	Output is correct
48	Correct	27 ms	8684 KB	Output is correct
49	Correct	26 ms	9708 KB	Output is correct
50	Correct	25 ms	9964 KB	Output is correct
51	Correct	28 ms	8812 KB	Output is correct
52	Correct	15 ms	4588 KB	Output is correct
53	Correct	9 ms	2924 KB	Output is correct
54	Correct	24 ms	8044 KB	Output is correct
55	Correct	28 ms	9452 KB	Output is correct
56	Correct	23 ms	9452 KB	Output is correct
57	Correct	19 ms	8424 KB	Output is correct
58	Correct	21 ms	8808 KB	Output is correct
59	Correct	23 ms	9580 KB	Output is correct
60	Correct	23 ms	9452 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	0 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	0 ms	364 KB	Output is correct
7	Correct	0 ms	364 KB	Output is correct
8	Correct	0 ms	364 KB	Output is correct
9	Correct	0 ms	364 KB	Output is correct
10	Correct	0 ms	364 KB	Output is correct
11	Correct	1 ms	364 KB	Output is correct
12	Correct	0 ms	364 KB	Output is correct
13	Correct	0 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	364 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	396 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	364 KB	Output is correct
25	Correct	1 ms	364 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	364 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	620 KB	Output is correct
32	Correct	1 ms	620 KB	Output is correct
33	Correct	1 ms	620 KB	Output is correct
34	Correct	1 ms	620 KB	Output is correct
35	Correct	1 ms	620 KB	Output is correct
36	Correct	1 ms	620 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	620 KB	Output is correct
40	Correct	1 ms	620 KB	Output is correct
41	Correct	1 ms	620 KB	Output is correct
42	Correct	1 ms	620 KB	Output is correct
43	Correct	1 ms	620 KB	Output is correct
44	Correct	1 ms	620 KB	Output is correct
45	Correct	1 ms	620 KB	Output is correct
46	Correct	15 ms	7404 KB	Output is correct
47	Correct	21 ms	8172 KB	Output is correct
48	Correct	27 ms	8684 KB	Output is correct
49	Correct	26 ms	9708 KB	Output is correct
50	Correct	25 ms	9964 KB	Output is correct
51	Correct	28 ms	8812 KB	Output is correct
52	Correct	15 ms	4588 KB	Output is correct
53	Correct	9 ms	2924 KB	Output is correct
54	Correct	24 ms	8044 KB	Output is correct
55	Correct	28 ms	9452 KB	Output is correct
56	Correct	23 ms	9452 KB	Output is correct
57	Correct	19 ms	8424 KB	Output is correct
58	Correct	21 ms	8808 KB	Output is correct
59	Correct	23 ms	9580 KB	Output is correct
60	Correct	23 ms	9452 KB	Output is correct
61	Correct	77 ms	34020 KB	Output is correct
62	Correct	80 ms	35324 KB	Output is correct
63	Correct	104 ms	39072 KB	Output is correct
64	Correct	142 ms	43884 KB	Output is correct
65	Correct	130 ms	47724 KB	Output is correct
66	Correct	142 ms	42348 KB	Output is correct
67	Correct	117 ms	34284 KB	Output is correct
68	Correct	60 ms	17516 KB	Output is correct
69	Correct	119 ms	38508 KB	Output is correct
70	Correct	133 ms	45548 KB	Output is correct
71	Correct	108 ms	45292 KB	Output is correct
72	Correct	101 ms	41056 KB	Output is correct
73	Correct	112 ms	44520 KB	Output is correct
74	Correct	116 ms	46700 KB	Output is correct
75	Correct	117 ms	46700 KB	Output is correct

답안 #344371

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0