Submission #905288

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
905288	2024-01-12T22:23:52 Z	rainboy	Mountains (IOI17_mountains)	C++17	100 / 100	10 ms	16216 KB

mountains

#include "mountains.h"
#include <vector>

using namespace std;

typedef vector<int> vi;

const int N = 2000;

int max(int a, int b) { return a > b ? a : b; }

long long cross(int x0, int y0, int x1, int y1, int x2, int y2) {
	return (long long) (x1 - x0) * (y2 - y0) - (long long) (x2 - x0) * (y1 - y0);
}

int dp[N][N];

int maximum_deevs(vi yy) {
	int n = yy.size();
	for (int i = n - 1; i >= 0; i--) {
		dp[i][i] = 1;
		int k = i, x = 0;
		for (int j = i + 1; j < n; j++) {
			dp[i][j] = dp[i + 1][j];
			if (cross(i, yy[i], k, yy[k], j, yy[j]) >= 0) {
				if (j - k > 1)
					x += dp[k + 1][j - 1];
				k = j;
				dp[i][j] = max(dp[i][j], x + 1);
			} else
				dp[i][j] = max(dp[i][j], x + dp[k + 1][j] + 1);
		}
	}
	return dp[0][n - 1];
}

Subtask #1
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	600 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	600 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	600 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct

Subtask #3
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	600 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	600 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	2 ms	2920 KB	Output is correct
40	Correct	2 ms	2920 KB	Output is correct
41	Correct	1 ms	2908 KB	Output is correct
42	Correct	1 ms	2908 KB	Output is correct
43	Correct	2 ms	2908 KB	Output is correct
44	Correct	1 ms	2908 KB	Output is correct
45	Correct	1 ms	2908 KB	Output is correct
46	Correct	1 ms	2908 KB	Output is correct
47	Correct	1 ms	2936 KB	Output is correct
48	Correct	2 ms	3064 KB	Output is correct
49	Correct	1 ms	2908 KB	Output is correct
50	Correct	1 ms	2908 KB	Output is correct
51	Correct	1 ms	2908 KB	Output is correct
52	Correct	1 ms	2908 KB	Output is correct
53	Correct	1 ms	2908 KB	Output is correct
54	Correct	2 ms	2908 KB	Output is correct
55	Correct	2 ms	2908 KB	Output is correct
56	Correct	2 ms	2908 KB	Output is correct
57	Correct	1 ms	2908 KB	Output is correct
58	Correct	2 ms	2908 KB	Output is correct
59	Correct	1 ms	2908 KB	Output is correct
60	Correct	1 ms	2908 KB	Output is correct
61	Correct	2 ms	2908 KB	Output is correct

Subtask #4
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	600 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	600 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	348 KB	Output is correct
33	Correct	1 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	1 ms	348 KB	Output is correct
37	Correct	1 ms	348 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	2 ms	2920 KB	Output is correct
40	Correct	2 ms	2920 KB	Output is correct
41	Correct	1 ms	2908 KB	Output is correct
42	Correct	1 ms	2908 KB	Output is correct
43	Correct	2 ms	2908 KB	Output is correct
44	Correct	1 ms	2908 KB	Output is correct
45	Correct	1 ms	2908 KB	Output is correct
46	Correct	1 ms	2908 KB	Output is correct
47	Correct	1 ms	2936 KB	Output is correct
48	Correct	2 ms	3064 KB	Output is correct
49	Correct	1 ms	2908 KB	Output is correct
50	Correct	1 ms	2908 KB	Output is correct
51	Correct	1 ms	2908 KB	Output is correct
52	Correct	1 ms	2908 KB	Output is correct
53	Correct	1 ms	2908 KB	Output is correct
54	Correct	2 ms	2908 KB	Output is correct
55	Correct	2 ms	2908 KB	Output is correct
56	Correct	2 ms	2908 KB	Output is correct
57	Correct	1 ms	2908 KB	Output is correct
58	Correct	2 ms	2908 KB	Output is correct
59	Correct	1 ms	2908 KB	Output is correct
60	Correct	1 ms	2908 KB	Output is correct
61	Correct	2 ms	2908 KB	Output is correct
62	Correct	4 ms	9564 KB	Output is correct
63	Correct	9 ms	15964 KB	Output is correct
64	Correct	9 ms	15812 KB	Output is correct
65	Correct	9 ms	15964 KB	Output is correct
66	Correct	9 ms	15964 KB	Output is correct
67	Correct	9 ms	15964 KB	Output is correct
68	Correct	9 ms	16216 KB	Output is correct
69	Correct	9 ms	15964 KB	Output is correct
70	Correct	8 ms	15964 KB	Output is correct
71	Correct	9 ms	15964 KB	Output is correct
72	Correct	9 ms	15964 KB	Output is correct
73	Correct	10 ms	16148 KB	Output is correct
74	Correct	8 ms	15980 KB	Output is correct
75	Correct	10 ms	15964 KB	Output is correct
76	Correct	10 ms	15964 KB	Output is correct
77	Correct	9 ms	15964 KB	Output is correct
78	Correct	8 ms	15964 KB	Output is correct
79	Correct	8 ms	15964 KB	Output is correct
80	Correct	8 ms	15976 KB	Output is correct
81	Correct	8 ms	15976 KB	Output is correct
82	Correct	9 ms	15996 KB	Output is correct
83	Correct	10 ms	15976 KB	Output is correct
84	Correct	8 ms	15976 KB	Output is correct
85	Correct	9 ms	15964 KB	Output is correct
86	Correct	9 ms	15964 KB	Output is correct

Submission #905288

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 20.0 / 20.0

Subtask #3 30.0 / 30.0

Subtask #4 30.0 / 30.0

Subtask #1
20.0 / 20.0

Subtask #2
20.0 / 20.0

Subtask #3
30.0 / 30.0

Subtask #4
30.0 / 30.0