oj.uz

Submission #203569

# Submission time Handle Problem Language Result Execution time Memory
203569 2020-02-21T10:52:11 Z anonymous Mountains (IOI17_mountains) C++14
100 / 100
 57 ms 8568 KB 
#include "mountains.h"
#include <vector>
#define MAXN 2005
using namespace std;
int N, dp[MAXN][MAXN];
long long H[MAXN];
bool block(int i, int j, int k) {
    //does j block view of i to k (i<=j<=k)?
    if (j == k || j == i) {return(false);}
    return((H[k]-H[j])*(k-i) < (H[k]-H[i])*(k-j));
}

int slv(int l, int r) {
    if (l >= r) {return(max(r-l+1,0));}
    if (dp[l][r]) {return(dp[l][r]);}
    int peak=0, lh, rh, val=1;
    for (int i=l; i<=r; i++) {
        if (H[i] >= H[peak]) {
            peak=i;
        }
    }
    dp[l][r]=slv(l, peak-1) + slv(peak+1,r); //ignore cur
    lh = peak, rh = peak;
    for (int i=peak-1; i>=l; i--) {
        if (block(i, lh, peak)) {continue;}
        else {
            val += slv(i+1, lh-1);
            lh = i;
        }
    }
    for (int i=peak+1; i<=r; i++) {
        if (block(peak, rh, i)) {continue;}
        else {
            val += slv(rh+1, i-1);
            rh = i;
        }
    }
    val+=slv(l, lh-1) + slv(rh+1, r);
    dp[l][r]=max(dp[l][r], val);
    return(dp[l][r]);
}

int maximum_deevs(vector<int> y) {
	N=y.size();
	for (int i=1; i<=N; i++) {
        H[i] = y[i-1];
	}
	return(slv(1,N));
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 380 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 4 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 380 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 4 ms 256 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 380 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 4 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 380 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 4 ms 256 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 632 KB Output is correct
40 Correct 5 ms 816 KB Output is correct
41 Correct 5 ms 760 KB Output is correct
42 Correct 5 ms 632 KB Output is correct
43 Correct 5 ms 760 KB Output is correct
44 Correct 5 ms 760 KB Output is correct
45 Correct 5 ms 760 KB Output is correct
46 Correct 5 ms 764 KB Output is correct
47 Correct 5 ms 760 KB Output is correct
48 Correct 5 ms 632 KB Output is correct
49 Correct 5 ms 888 KB Output is correct
50 Correct 5 ms 888 KB Output is correct
51 Correct 5 ms 504 KB Output is correct
52 Correct 8 ms 1016 KB Output is correct
53 Correct 7 ms 1016 KB Output is correct
54 Correct 8 ms 1016 KB Output is correct
55 Correct 7 ms 1016 KB Output is correct
56 Correct 8 ms 1020 KB Output is correct
57 Correct 5 ms 376 KB Output is correct
58 Correct 6 ms 632 KB Output is correct
59 Correct 5 ms 632 KB Output is correct
60 Correct 5 ms 376 KB Output is correct
61 Correct 6 ms 1504 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 4 ms 256 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 4 ms 256 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 6 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 380 KB Output is correct
9 Correct 5 ms 380 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 380 KB Output is correct
20 Correct 5 ms 376 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 4 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 380 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 376 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 5 ms 376 KB Output is correct
32 Correct 5 ms 376 KB Output is correct
33 Correct 5 ms 256 KB Output is correct
34 Correct 5 ms 376 KB Output is correct
35 Correct 5 ms 256 KB Output is correct
36 Correct 4 ms 256 KB Output is correct
37 Correct 5 ms 376 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 632 KB Output is correct
40 Correct 5 ms 816 KB Output is correct
41 Correct 5 ms 760 KB Output is correct
42 Correct 5 ms 632 KB Output is correct
43 Correct 5 ms 760 KB Output is correct
44 Correct 5 ms 760 KB Output is correct
45 Correct 5 ms 760 KB Output is correct
46 Correct 5 ms 764 KB Output is correct
47 Correct 5 ms 760 KB Output is correct
48 Correct 5 ms 632 KB Output is correct
49 Correct 5 ms 888 KB Output is correct
50 Correct 5 ms 888 KB Output is correct
51 Correct 5 ms 504 KB Output is correct
52 Correct 8 ms 1016 KB Output is correct
53 Correct 7 ms 1016 KB Output is correct
54 Correct 8 ms 1016 KB Output is correct
55 Correct 7 ms 1016 KB Output is correct
56 Correct 8 ms 1020 KB Output is correct
57 Correct 5 ms 376 KB Output is correct
58 Correct 6 ms 632 KB Output is correct
59 Correct 5 ms 632 KB Output is correct
60 Correct 5 ms 376 KB Output is correct
61 Correct 6 ms 1504 KB Output is correct
62 Correct 6 ms 1660 KB Output is correct
63 Correct 8 ms 3068 KB Output is correct
64 Correct 7 ms 3064 KB Output is correct
65 Correct 8 ms 3064 KB Output is correct
66 Correct 7 ms 3064 KB Output is correct
67 Correct 7 ms 3192 KB Output is correct
68 Correct 7 ms 3064 KB Output is correct
69 Correct 7 ms 3064 KB Output is correct
70 Correct 18 ms 4216 KB Output is correct
71 Correct 17 ms 4216 KB Output is correct
72 Correct 17 ms 4088 KB Output is correct
73 Correct 17 ms 4344 KB Output is correct
74 Correct 17 ms 4088 KB Output is correct
75 Correct 16 ms 4216 KB Output is correct
76 Correct 7 ms 1912 KB Output is correct
77 Correct 57 ms 1528 KB Output is correct
78 Correct 50 ms 1400 KB Output is correct
79 Correct 56 ms 1528 KB Output is correct
80 Correct 54 ms 1400 KB Output is correct
81 Correct 44 ms 1400 KB Output is correct
82 Correct 20 ms 504 KB Output is correct
83 Correct 48 ms 2936 KB Output is correct
84 Correct 40 ms 3064 KB Output is correct
85 Correct 18 ms 504 KB Output is correct
86 Correct 23 ms 8568 KB Output is correct