답안 #175927

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
175927	2020-01-07T12:23:27 Z	mcdx9524	Bigger segments (IZhO19_segments)	C++14	37 / 100	1500 ms	3064 KB

segments

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());

int rand(int l, int r) {
    return uniform_int_distribution <int> (l, r) (rnd);
}

const int inf = 1e9 + 7;

void solve() {
    int n;
    cin >> n;
    vector <int> a(n + 1, 0);
    vector <ll> pref(n + 1, 0);
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        pref[i] = a[i] + pref[i - 1];
    }
    vector <pair <int, ll> > dp(n + 1, {0, inf});
    dp[0] = {0, 0};
    for (int i = 1; i <= n; i++) {
        for (int j = 0; j < i; j++) {
            ll sum = pref[i] - pref[j];
            if (sum >= dp[j].second) {
                if (dp[j].first + 1 > dp[i].first) {
                    dp[i].first = dp[j].first + 1;
                    dp[i].second = sum;
                } else if (dp[j].first + 1 == dp[i].first) {
                    dp[i].second = min(dp[i].second, sum);
                }
            }
        }
    }
    for (int i = 1; i <= n; i++) {
        if (dp[i].first < dp[i - 1].first) {
            assert(0);
        }
    }
    cout << dp[n].first << '\n';
}

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif
    ios::sync_with_stdio(0);
    cin.tie(0);
    int test_cnt = 1;
    //cin >> test_cnt;
    while (test_cnt--) {
        solve();
    }
    return 0;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	252 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	252 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	12 ms	348 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	252 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	12 ms	348 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	6 ms	376 KB	Output is correct
32	Correct	14 ms	376 KB	Output is correct
33	Correct	13 ms	468 KB	Output is correct
34	Correct	9 ms	504 KB	Output is correct
35	Correct	9 ms	376 KB	Output is correct
36	Correct	14 ms	376 KB	Output is correct
37	Correct	10 ms	376 KB	Output is correct
38	Correct	7 ms	376 KB	Output is correct
39	Correct	14 ms	420 KB	Output is correct
40	Correct	14 ms	376 KB	Output is correct
41	Correct	9 ms	376 KB	Output is correct
42	Correct	9 ms	376 KB	Output is correct
43	Correct	13 ms	508 KB	Output is correct
44	Correct	9 ms	376 KB	Output is correct
45	Correct	10 ms	504 KB	Output is correct

Subtask #4
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	252 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	12 ms	348 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	6 ms	376 KB	Output is correct
32	Correct	14 ms	376 KB	Output is correct
33	Correct	13 ms	468 KB	Output is correct
34	Correct	9 ms	504 KB	Output is correct
35	Correct	9 ms	376 KB	Output is correct
36	Correct	14 ms	376 KB	Output is correct
37	Correct	10 ms	376 KB	Output is correct
38	Correct	7 ms	376 KB	Output is correct
39	Correct	14 ms	420 KB	Output is correct
40	Correct	14 ms	376 KB	Output is correct
41	Correct	9 ms	376 KB	Output is correct
42	Correct	9 ms	376 KB	Output is correct
43	Correct	13 ms	508 KB	Output is correct
44	Correct	9 ms	376 KB	Output is correct
45	Correct	10 ms	504 KB	Output is correct
46	Execution timed out	1551 ms	3064 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	252 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	3 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	12 ms	348 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	6 ms	376 KB	Output is correct
32	Correct	14 ms	376 KB	Output is correct
33	Correct	13 ms	468 KB	Output is correct
34	Correct	9 ms	504 KB	Output is correct
35	Correct	9 ms	376 KB	Output is correct
36	Correct	14 ms	376 KB	Output is correct
37	Correct	10 ms	376 KB	Output is correct
38	Correct	7 ms	376 KB	Output is correct
39	Correct	14 ms	420 KB	Output is correct
40	Correct	14 ms	376 KB	Output is correct
41	Correct	9 ms	376 KB	Output is correct
42	Correct	9 ms	376 KB	Output is correct
43	Correct	13 ms	508 KB	Output is correct
44	Correct	9 ms	376 KB	Output is correct
45	Correct	10 ms	504 KB	Output is correct
46	Execution timed out	1551 ms	3064 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

답안 #175927

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 0 / 36.0

Subtask #5 0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
0 / 36.0

Subtask #5
0 / 27.0