답안 #169367

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
169367	2019-12-20T06:27:15 Z	SamAnd	Bigger segments (IZhO19_segments)	C++17	100 / 100	147 ms	18912 KB

segments

#include <bits/stdc++.h>
using namespace std;
#define m_p make_pair
const int N = 500005;

int n;
int a[N];
long long p[N];

pair<int, long long> dp[N];

pair<int, long long> mer(const pair<int, long long>& l, const pair<int, long long>& r)
{
    if (l.first > r.first)
        return l;
    if (l.first < r.first)
        return r;
    if (l.second < r.second)
        return l;
    return r;
}

int main()
{
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i)
        scanf("%d", &a[i]);
    for (int i = 1; i <= n; ++i)
        p[i] = p[i - 1] + a[i];
    for (int i = 0; i < n; ++i)
    {
        dp[i + 1] = mer(dp[i + 1], m_p(dp[i].first, dp[i].second + a[i + 1]));
        int l = i + 1, r = n;
        int ans = -1;
        while (l <= r)
        {
            int m = (l + r) / 2;
            if (p[m] - p[i] >= dp[i].second)
            {
                ans = m;
                r = m - 1;
            }
            else
                l = m + 1;
        }
        if (ans != -1)
            dp[ans] = mer(dp[ans], m_p(dp[i].first + 1, p[ans] - p[i]));
    }
    printf("%d\n", dp[n].first);
    return 0;
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:25:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
segments.cpp:27:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", &a[i]);
         ~~~~~^~~~~~~~~~~~~

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	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	380 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	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	380 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	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	372 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	380 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	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	380 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	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	372 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	380 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	3 ms	504 KB	Output is correct
33	Correct	3 ms	504 KB	Output is correct
34	Correct	2 ms	504 KB	Output is correct
35	Correct	3 ms	376 KB	Output is correct
36	Correct	3 ms	504 KB	Output is correct
37	Correct	3 ms	376 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	2 ms	504 KB	Output is correct
40	Correct	3 ms	476 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	404 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	2 ms	504 KB	Output is correct
45	Correct	2 ms	504 KB	Output is correct

Subtask #4
36.0 / 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	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	380 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	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	372 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	380 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	3 ms	504 KB	Output is correct
33	Correct	3 ms	504 KB	Output is correct
34	Correct	2 ms	504 KB	Output is correct
35	Correct	3 ms	376 KB	Output is correct
36	Correct	3 ms	504 KB	Output is correct
37	Correct	3 ms	376 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	2 ms	504 KB	Output is correct
40	Correct	3 ms	476 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	404 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	2 ms	504 KB	Output is correct
45	Correct	2 ms	504 KB	Output is correct
46	Correct	19 ms	3448 KB	Output is correct
47	Correct	23 ms	3576 KB	Output is correct
48	Correct	26 ms	3832 KB	Output is correct
49	Correct	26 ms	3960 KB	Output is correct
50	Correct	23 ms	4092 KB	Output is correct
51	Correct	31 ms	4088 KB	Output is correct
52	Correct	16 ms	2168 KB	Output is correct
53	Correct	11 ms	1404 KB	Output is correct
54	Correct	21 ms	3324 KB	Output is correct
55	Correct	26 ms	4088 KB	Output is correct
56	Correct	20 ms	3576 KB	Output is correct
57	Correct	20 ms	3452 KB	Output is correct
58	Correct	21 ms	3580 KB	Output is correct
59	Correct	21 ms	3704 KB	Output is correct
60	Correct	21 ms	3704 KB	Output is correct

Subtask #5
27.0 / 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	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	380 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	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	372 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	384 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	2 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	380 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	3 ms	504 KB	Output is correct
33	Correct	3 ms	504 KB	Output is correct
34	Correct	2 ms	504 KB	Output is correct
35	Correct	3 ms	376 KB	Output is correct
36	Correct	3 ms	504 KB	Output is correct
37	Correct	3 ms	376 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	2 ms	504 KB	Output is correct
40	Correct	3 ms	476 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	3 ms	404 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	2 ms	504 KB	Output is correct
45	Correct	2 ms	504 KB	Output is correct
46	Correct	19 ms	3448 KB	Output is correct
47	Correct	23 ms	3576 KB	Output is correct
48	Correct	26 ms	3832 KB	Output is correct
49	Correct	26 ms	3960 KB	Output is correct
50	Correct	23 ms	4092 KB	Output is correct
51	Correct	31 ms	4088 KB	Output is correct
52	Correct	16 ms	2168 KB	Output is correct
53	Correct	11 ms	1404 KB	Output is correct
54	Correct	21 ms	3324 KB	Output is correct
55	Correct	26 ms	4088 KB	Output is correct
56	Correct	20 ms	3576 KB	Output is correct
57	Correct	20 ms	3452 KB	Output is correct
58	Correct	21 ms	3580 KB	Output is correct
59	Correct	21 ms	3704 KB	Output is correct
60	Correct	21 ms	3704 KB	Output is correct
61	Correct	89 ms	16028 KB	Output is correct
62	Correct	100 ms	16004 KB	Output is correct
63	Correct	112 ms	16376 KB	Output is correct
64	Correct	133 ms	18592 KB	Output is correct
65	Correct	110 ms	18900 KB	Output is correct
66	Correct	147 ms	18808 KB	Output is correct
67	Correct	121 ms	15224 KB	Output is correct
68	Correct	60 ms	7800 KB	Output is correct
69	Correct	101 ms	15100 KB	Output is correct
70	Correct	122 ms	18912 KB	Output is correct
71	Correct	89 ms	15992 KB	Output is correct
72	Correct	99 ms	16392 KB	Output is correct
73	Correct	99 ms	16888 KB	Output is correct
74	Correct	100 ms	17372 KB	Output is correct
75	Correct	100 ms	17372 KB	Output is correct

답안 #169367

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