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Submission #405355

# Submission time Handle Problem Language Result Execution time Memory
405355 2021-05-16T09:32:19 Z iulia13 Mountains (IOI17_mountains) C++14
100 / 100
 38 ms 14164 KB 
#include <iostream>
#include <vector>
#include "mountains.h"

using namespace std;

#define ll long long

const int N = 2005;
struct Mountain{
    ll x, y;
} v[N];
int dp[N][N];
long long infas(int a, int b, int c)
{
    return (v[b].x - v[a].x) * (v[c].y - v[a].y) >= (v[b].y - v[a].y) * (v[c].x - v[a].x);
}
int maximum_deevs(vector<int> h)
{
    int n = h.size(), i, j;
    for (i = 1; i <= n; i++)
    {
        v[i].x = i - 1;
        v[i].y = h[i - 1];
    }
    for (i = 1; i <= n; i++)
    {
        dp[i][i] = dp[i - 1][i] = 1;
int        lstseen = i - 1, cnt = 0;
        for (j = i - 2; 1 <= j; j--)
        {
            if (infas(j, lstseen, i))
            {
                cnt += dp[j + 1][lstseen - 1];
                lstseen = j;
            }
            dp[j][i] = max(dp[j][i - 1], 1 + cnt + dp[j][lstseen - 1]);
        }
    }
    return dp[1][n];
}/*
int main()
{
    int n;
    cin >> n;
    vector <int> h(n);
    for (int i = 0; i < n; i++)
        cin >> h[i];
    cout << maximum_deevs(h);
    return 0;
}*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 304 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 304 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 428 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 428 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 424 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 304 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 428 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 428 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 424 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 1192 KB Output is correct
40 Correct 2 ms 1612 KB Output is correct
41 Correct 2 ms 1612 KB Output is correct
42 Correct 2 ms 1612 KB Output is correct
43 Correct 2 ms 1612 KB Output is correct
44 Correct 2 ms 1580 KB Output is correct
45 Correct 2 ms 1612 KB Output is correct
46 Correct 2 ms 1612 KB Output is correct
47 Correct 2 ms 1612 KB Output is correct
48 Correct 2 ms 1612 KB Output is correct
49 Correct 2 ms 1612 KB Output is correct
50 Correct 2 ms 1580 KB Output is correct
51 Correct 2 ms 1612 KB Output is correct
52 Correct 3 ms 1560 KB Output is correct
53 Correct 2 ms 1612 KB Output is correct
54 Correct 2 ms 1612 KB Output is correct
55 Correct 2 ms 1612 KB Output is correct
56 Correct 2 ms 1612 KB Output is correct
57 Correct 2 ms 1584 KB Output is correct
58 Correct 2 ms 1612 KB Output is correct
59 Correct 2 ms 1612 KB Output is correct
60 Correct 2 ms 1584 KB Output is correct
61 Correct 2 ms 1612 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 304 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 300 KB Output is correct
16 Correct 1 ms 304 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 428 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 1 ms 428 KB Output is correct
33 Correct 1 ms 460 KB Output is correct
34 Correct 1 ms 460 KB Output is correct
35 Correct 1 ms 424 KB Output is correct
36 Correct 1 ms 460 KB Output is correct
37 Correct 1 ms 460 KB Output is correct
38 Correct 1 ms 460 KB Output is correct
39 Correct 1 ms 1192 KB Output is correct
40 Correct 2 ms 1612 KB Output is correct
41 Correct 2 ms 1612 KB Output is correct
42 Correct 2 ms 1612 KB Output is correct
43 Correct 2 ms 1612 KB Output is correct
44 Correct 2 ms 1580 KB Output is correct
45 Correct 2 ms 1612 KB Output is correct
46 Correct 2 ms 1612 KB Output is correct
47 Correct 2 ms 1612 KB Output is correct
48 Correct 2 ms 1612 KB Output is correct
49 Correct 2 ms 1612 KB Output is correct
50 Correct 2 ms 1580 KB Output is correct
51 Correct 2 ms 1612 KB Output is correct
52 Correct 3 ms 1560 KB Output is correct
53 Correct 2 ms 1612 KB Output is correct
54 Correct 2 ms 1612 KB Output is correct
55 Correct 2 ms 1612 KB Output is correct
56 Correct 2 ms 1612 KB Output is correct
57 Correct 2 ms 1584 KB Output is correct
58 Correct 2 ms 1612 KB Output is correct
59 Correct 2 ms 1612 KB Output is correct
60 Correct 2 ms 1584 KB Output is correct
61 Correct 2 ms 1612 KB Output is correct
62 Correct 6 ms 6220 KB Output is correct
63 Correct 26 ms 14056 KB Output is correct
64 Correct 25 ms 14144 KB Output is correct
65 Correct 27 ms 14060 KB Output is correct
66 Correct 27 ms 14064 KB Output is correct
67 Correct 26 ms 14148 KB Output is correct
68 Correct 26 ms 14144 KB Output is correct
69 Correct 26 ms 14112 KB Output is correct
70 Correct 33 ms 14164 KB Output is correct
71 Correct 31 ms 14072 KB Output is correct
72 Correct 31 ms 14048 KB Output is correct
73 Correct 31 ms 14104 KB Output is correct
74 Correct 31 ms 14124 KB Output is correct
75 Correct 31 ms 14068 KB Output is correct
76 Correct 27 ms 14028 KB Output is correct
77 Correct 38 ms 14124 KB Output is correct
78 Correct 37 ms 14048 KB Output is correct
79 Correct 37 ms 14120 KB Output is correct
80 Correct 36 ms 14124 KB Output is correct
81 Correct 38 ms 14048 KB Output is correct
82 Correct 25 ms 14076 KB Output is correct
83 Correct 27 ms 14092 KB Output is correct
84 Correct 27 ms 14116 KB Output is correct
85 Correct 25 ms 14112 KB Output is correct
86 Correct 25 ms 14100 KB Output is correct