oj.uz

Submission #125274

# Submission time Handle Problem Language Result Execution time Memory
125274 2019-07-05T02:49:10 Z dragonslayerit Mountains (IOI17_mountains) C++14
100 / 100
 42 ms 28024 KB 
#include "mountains.h"
#include <vector>
#include <algorithm>
#include <cstdio>

int first[2001][2001];//if i is required
int best[2001][2001];

//Is there a case that breaks the algorithm assuming first=best?
     
int maximum_deevs(std::vector<int> y) {
  for(int i=0;i<y.size();i++){
    first[i][i+1]=1;
    best[i][i+1]=1;
  }
  for(int i=y.size()-1;i>=0;i--){
    int k=i+1;
    for(int j=i+2;j<=y.size();j++){
      first[i][j]=first[i][k]+best[k+1][j];
      best[i][j]=std::max(first[i][j],best[i+1][j]);
      if(1LL*(k-i)*(y[j]-y[i])>=1LL*(j-i)*(y[k]-y[i])){
	k=j;
      }
    }
  }
  return best[0][y.size()];
}

Compilation message

mountains.cpp: In function 'int maximum_deevs(std::vector<int>)':
mountains.cpp:12:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<y.size();i++){
               ~^~~~~~~~~
mountains.cpp:18:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=i+2;j<=y.size();j++){
                   ~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 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 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct
16 Correct 2 ms 508 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 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 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct
16 Correct 2 ms 508 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 632 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 632 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 632 KB Output is correct
26 Correct 2 ms 636 KB Output is correct
27 Correct 2 ms 632 KB Output is correct
28 Correct 2 ms 632 KB Output is correct
29 Correct 2 ms 632 KB Output is correct
30 Correct 2 ms 632 KB Output is correct
31 Correct 2 ms 632 KB Output is correct
32 Correct 2 ms 632 KB Output is correct
33 Correct 2 ms 632 KB Output is correct
34 Correct 2 ms 632 KB Output is correct
35 Correct 2 ms 632 KB Output is correct
36 Correct 2 ms 632 KB Output is correct
37 Correct 2 ms 636 KB Output is correct
38 Correct 2 ms 632 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 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 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct
16 Correct 2 ms 508 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 632 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 632 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 632 KB Output is correct
26 Correct 2 ms 636 KB Output is correct
27 Correct 2 ms 632 KB Output is correct
28 Correct 2 ms 632 KB Output is correct
29 Correct 2 ms 632 KB Output is correct
30 Correct 2 ms 632 KB Output is correct
31 Correct 2 ms 632 KB Output is correct
32 Correct 2 ms 632 KB Output is correct
33 Correct 2 ms 632 KB Output is correct
34 Correct 2 ms 632 KB Output is correct
35 Correct 2 ms 632 KB Output is correct
36 Correct 2 ms 632 KB Output is correct
37 Correct 2 ms 636 KB Output is correct
38 Correct 2 ms 632 KB Output is correct
39 Correct 4 ms 2044 KB Output is correct
40 Correct 5 ms 3064 KB Output is correct
41 Correct 5 ms 3064 KB Output is correct
42 Correct 4 ms 3064 KB Output is correct
43 Correct 5 ms 3064 KB Output is correct
44 Correct 4 ms 3064 KB Output is correct
45 Correct 4 ms 3064 KB Output is correct
46 Correct 4 ms 3064 KB Output is correct
47 Correct 4 ms 3064 KB Output is correct
48 Correct 4 ms 3068 KB Output is correct
49 Correct 4 ms 3064 KB Output is correct
50 Correct 4 ms 3064 KB Output is correct
51 Correct 4 ms 3064 KB Output is correct
52 Correct 4 ms 3064 KB Output is correct
53 Correct 4 ms 3064 KB Output is correct
54 Correct 5 ms 3064 KB Output is correct
55 Correct 4 ms 3064 KB Output is correct
56 Correct 4 ms 3064 KB Output is correct
57 Correct 4 ms 3064 KB Output is correct
58 Correct 4 ms 3064 KB Output is correct
59 Correct 4 ms 3064 KB Output is correct
60 Correct 4 ms 3064 KB Output is correct
61 Correct 4 ms 3064 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 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 504 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 504 KB Output is correct
12 Correct 2 ms 504 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 548 KB Output is correct
16 Correct 2 ms 508 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 632 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 632 KB Output is correct
24 Correct 2 ms 632 KB Output is correct
25 Correct 2 ms 632 KB Output is correct
26 Correct 2 ms 636 KB Output is correct
27 Correct 2 ms 632 KB Output is correct
28 Correct 2 ms 632 KB Output is correct
29 Correct 2 ms 632 KB Output is correct
30 Correct 2 ms 632 KB Output is correct
31 Correct 2 ms 632 KB Output is correct
32 Correct 2 ms 632 KB Output is correct
33 Correct 2 ms 632 KB Output is correct
34 Correct 2 ms 632 KB Output is correct
35 Correct 2 ms 632 KB Output is correct
36 Correct 2 ms 632 KB Output is correct
37 Correct 2 ms 636 KB Output is correct
38 Correct 2 ms 632 KB Output is correct
39 Correct 4 ms 2044 KB Output is correct
40 Correct 5 ms 3064 KB Output is correct
41 Correct 5 ms 3064 KB Output is correct
42 Correct 4 ms 3064 KB Output is correct
43 Correct 5 ms 3064 KB Output is correct
44 Correct 4 ms 3064 KB Output is correct
45 Correct 4 ms 3064 KB Output is correct
46 Correct 4 ms 3064 KB Output is correct
47 Correct 4 ms 3064 KB Output is correct
48 Correct 4 ms 3068 KB Output is correct
49 Correct 4 ms 3064 KB Output is correct
50 Correct 4 ms 3064 KB Output is correct
51 Correct 4 ms 3064 KB Output is correct
52 Correct 4 ms 3064 KB Output is correct
53 Correct 4 ms 3064 KB Output is correct
54 Correct 5 ms 3064 KB Output is correct
55 Correct 4 ms 3064 KB Output is correct
56 Correct 4 ms 3064 KB Output is correct
57 Correct 4 ms 3064 KB Output is correct
58 Correct 4 ms 3064 KB Output is correct
59 Correct 4 ms 3064 KB Output is correct
60 Correct 4 ms 3064 KB Output is correct
61 Correct 4 ms 3064 KB Output is correct
62 Correct 14 ms 12280 KB Output is correct
63 Correct 36 ms 27896 KB Output is correct
64 Correct 36 ms 27884 KB Output is correct
65 Correct 36 ms 28024 KB Output is correct
66 Correct 36 ms 27896 KB Output is correct
67 Correct 36 ms 27928 KB Output is correct
68 Correct 36 ms 28024 KB Output is correct
69 Correct 36 ms 27912 KB Output is correct
70 Correct 37 ms 27896 KB Output is correct
71 Correct 37 ms 27948 KB Output is correct
72 Correct 37 ms 27896 KB Output is correct
73 Correct 37 ms 27896 KB Output is correct
74 Correct 37 ms 27896 KB Output is correct
75 Correct 37 ms 27896 KB Output is correct
76 Correct 35 ms 27856 KB Output is correct
77 Correct 40 ms 27896 KB Output is correct
78 Correct 41 ms 27896 KB Output is correct
79 Correct 41 ms 27896 KB Output is correct
80 Correct 42 ms 27900 KB Output is correct
81 Correct 40 ms 27896 KB Output is correct
82 Correct 36 ms 27896 KB Output is correct
83 Correct 36 ms 27896 KB Output is correct
84 Correct 36 ms 27896 KB Output is correct
85 Correct 36 ms 27896 KB Output is correct
86 Correct 36 ms 27896 KB Output is correct