답안 #218801

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
218801	2020-04-02T18:29:13 Z	Lawliet	Bigger segments (IZhO19_segments)	C++14	37 / 100	112 ms	38904 KB

segments

#include <bits/stdc++.h>

using namespace std;
typedef long long int lli;

const int MAXN = 5010;

int n;

int v[MAXN];
int curMx[MAXN];
int dp[MAXN][MAXN];

lli sv[MAXN];

int main()
{
	scanf("%d",&n);

	for(int i = 1 ; i <= n ; i++)
		scanf("%d",&v[i]);

	for(int i = 1 ; i <= n ; i++)
		sv[i] = sv[i - 1] + v[i];

	for(int i = 1 ; i <= n ; i++)
		dp[n + 1][i] = 1;

	for(int i = n ; i > 0 ; i--)
	{
		int p = i;

		for(int j = n ; j >= i ; j--)
		{
			curMx[j] = curMx[j + 1];
			curMx[j] = max( curMx[j] , dp[j + 1][i] );
		}

		for(int j = i - 1 ; j >= 0 ; j--)
		{
			lli lastSum = sv[i - 1] - sv[j - 1];

			while( p <= n && sv[p] - sv[i - 1] < lastSum )
				p++;

			dp[i][j] = curMx[p] + 1;
		}
	}

	int ans = 0;

	for(int i = 1 ; i <= n ; i++)
		ans = max( ans , dp[i + 1][1] );

	printf("%d\n",ans);
}

Compilation message

segments.cpp: In function 'int main()':
segments.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
segments.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&v[i]);
   ~~~~~^~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	512 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	512 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	7 ms	2816 KB	Output is correct
17	Correct	6 ms	2816 KB	Output is correct
18	Correct	7 ms	2944 KB	Output is correct
19	Correct	6 ms	2816 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	7 ms	2816 KB	Output is correct
22	Correct	6 ms	2304 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	2816 KB	Output is correct
25	Correct	6 ms	2816 KB	Output is correct
26	Correct	6 ms	2816 KB	Output is correct
27	Correct	6 ms	2816 KB	Output is correct
28	Correct	7 ms	2816 KB	Output is correct
29	Correct	7 ms	2816 KB	Output is correct
30	Correct	7 ms	2816 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	512 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	7 ms	2816 KB	Output is correct
17	Correct	6 ms	2816 KB	Output is correct
18	Correct	7 ms	2944 KB	Output is correct
19	Correct	6 ms	2816 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	7 ms	2816 KB	Output is correct
22	Correct	6 ms	2304 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	2816 KB	Output is correct
25	Correct	6 ms	2816 KB	Output is correct
26	Correct	6 ms	2816 KB	Output is correct
27	Correct	6 ms	2816 KB	Output is correct
28	Correct	7 ms	2816 KB	Output is correct
29	Correct	7 ms	2816 KB	Output is correct
30	Correct	7 ms	2816 KB	Output is correct
31	Correct	79 ms	30072 KB	Output is correct
32	Correct	79 ms	30072 KB	Output is correct
33	Correct	87 ms	30128 KB	Output is correct
34	Correct	77 ms	30076 KB	Output is correct
35	Correct	77 ms	30072 KB	Output is correct
36	Correct	96 ms	30072 KB	Output is correct
37	Correct	66 ms	22752 KB	Output is correct
38	Correct	39 ms	16248 KB	Output is correct
39	Correct	100 ms	30072 KB	Output is correct
40	Correct	77 ms	30072 KB	Output is correct
41	Correct	76 ms	30136 KB	Output is correct
42	Correct	84 ms	30172 KB	Output is correct
43	Correct	78 ms	30072 KB	Output is correct
44	Correct	79 ms	30072 KB	Output is correct
45	Correct	80 ms	30072 KB	Output is correct

Subtask #4
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	512 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	7 ms	2816 KB	Output is correct
17	Correct	6 ms	2816 KB	Output is correct
18	Correct	7 ms	2944 KB	Output is correct
19	Correct	6 ms	2816 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	7 ms	2816 KB	Output is correct
22	Correct	6 ms	2304 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	2816 KB	Output is correct
25	Correct	6 ms	2816 KB	Output is correct
26	Correct	6 ms	2816 KB	Output is correct
27	Correct	6 ms	2816 KB	Output is correct
28	Correct	7 ms	2816 KB	Output is correct
29	Correct	7 ms	2816 KB	Output is correct
30	Correct	7 ms	2816 KB	Output is correct
31	Correct	79 ms	30072 KB	Output is correct
32	Correct	79 ms	30072 KB	Output is correct
33	Correct	87 ms	30128 KB	Output is correct
34	Correct	77 ms	30076 KB	Output is correct
35	Correct	77 ms	30072 KB	Output is correct
36	Correct	96 ms	30072 KB	Output is correct
37	Correct	66 ms	22752 KB	Output is correct
38	Correct	39 ms	16248 KB	Output is correct
39	Correct	100 ms	30072 KB	Output is correct
40	Correct	77 ms	30072 KB	Output is correct
41	Correct	76 ms	30136 KB	Output is correct
42	Correct	84 ms	30172 KB	Output is correct
43	Correct	78 ms	30072 KB	Output is correct
44	Correct	79 ms	30072 KB	Output is correct
45	Correct	80 ms	30072 KB	Output is correct
46	Correct	6 ms	1536 KB	Output is correct
47	Incorrect	112 ms	38904 KB	Output isn't correct
48	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	512 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	512 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	512 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	512 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	7 ms	2816 KB	Output is correct
17	Correct	6 ms	2816 KB	Output is correct
18	Correct	7 ms	2944 KB	Output is correct
19	Correct	6 ms	2816 KB	Output is correct
20	Correct	7 ms	2816 KB	Output is correct
21	Correct	7 ms	2816 KB	Output is correct
22	Correct	6 ms	2304 KB	Output is correct
23	Correct	6 ms	1792 KB	Output is correct
24	Correct	7 ms	2816 KB	Output is correct
25	Correct	6 ms	2816 KB	Output is correct
26	Correct	6 ms	2816 KB	Output is correct
27	Correct	6 ms	2816 KB	Output is correct
28	Correct	7 ms	2816 KB	Output is correct
29	Correct	7 ms	2816 KB	Output is correct
30	Correct	7 ms	2816 KB	Output is correct
31	Correct	79 ms	30072 KB	Output is correct
32	Correct	79 ms	30072 KB	Output is correct
33	Correct	87 ms	30128 KB	Output is correct
34	Correct	77 ms	30076 KB	Output is correct
35	Correct	77 ms	30072 KB	Output is correct
36	Correct	96 ms	30072 KB	Output is correct
37	Correct	66 ms	22752 KB	Output is correct
38	Correct	39 ms	16248 KB	Output is correct
39	Correct	100 ms	30072 KB	Output is correct
40	Correct	77 ms	30072 KB	Output is correct
41	Correct	76 ms	30136 KB	Output is correct
42	Correct	84 ms	30172 KB	Output is correct
43	Correct	78 ms	30072 KB	Output is correct
44	Correct	79 ms	30072 KB	Output is correct
45	Correct	80 ms	30072 KB	Output is correct
46	Correct	6 ms	1536 KB	Output is correct
47	Incorrect	112 ms	38904 KB	Output isn't correct
48	Halted	0 ms	0 KB	-

답안 #218801

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