oj.uz

Submission #125269

# Submission time Handle Problem Language Result Execution time Memory
125269 2019-07-05T02:40:01 Z dragonslayerit Mountains (IOI17_mountains) C++14
100 / 100
 57 ms 43640 KB 
#include "mountains.h"
#include <vector>
#include <algorithm>
#include <cstdio>
     
int memo[2001][2001];
int last[2001][2001];

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

int solve(int begin,int end){
  if(begin==end) return 0;
  if(end-begin==1) return 1;
  if(memo[begin][end]!=-1) return memo[begin][end];
  int ans=solve(begin,last[begin][end-1])+solve(last[begin][end-1]+1,end);
  return memo[begin][end]=std::max(ans,solve(begin+1,end));
}
     
int maximum_deevs(std::vector<int> y) {
  for(int i=0;i<=y.size();i++){
    for(int j=0;j<=y.size();j++){
      memo[i][j]=-1;
    }
  }
  for(int i=0;i<y.size();i++){
    int k=i+1;
    for(int j=i+1;j<y.size();j++){
      if(1LL*(k-i)*(y[j]-y[i])>=1LL*(j-i)*(y[k]-y[i])){
    	k=j;
      }
      last[i][j]=k;
    }
  }
  for(int i=0;i<y.size();i++){
    best[i][i+1]=1;
  }
  for(int i=y.size()-1;i>=0;i--){
    for(int j=i+2;j<=y.size();j++){
      best[i][j]=std::max(best[i][last[i][j-1]]+best[last[i][j-1]+1][j],best[i+1][j]);
    }
  }
  
  return best[0][y.size()];
}

Compilation message

mountains.cpp: In function 'int maximum_deevs(std::vector<int>)':
mountains.cpp:21:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<=y.size();i++){
               ~^~~~~~~~~~
mountains.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<=y.size();j++){
                 ~^~~~~~~~~~
mountains.cpp:26:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<y.size();i++){
               ~^~~~~~~~~
mountains.cpp:28:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=i+1;j<y.size();j++){
                   ~^~~~~~~~~
mountains.cpp:35:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<y.size();i++){
               ~^~~~~~~~~
mountains.cpp:39:20: 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 376 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 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 632 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 504 KB Output is correct
16 Correct 2 ms 504 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 376 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 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 632 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 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 760 KB Output is correct
19 Correct 3 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 760 KB Output is correct
22 Correct 2 ms 760 KB Output is correct
23 Correct 2 ms 764 KB Output is correct
24 Correct 2 ms 764 KB Output is correct
25 Correct 2 ms 760 KB Output is correct
26 Correct 2 ms 760 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 760 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 3 ms 888 KB Output is correct
32 Correct 3 ms 760 KB Output is correct
33 Correct 2 ms 760 KB Output is correct
34 Correct 2 ms 760 KB Output is correct
35 Correct 2 ms 760 KB Output is correct
36 Correct 2 ms 760 KB Output is correct
37 Correct 2 ms 760 KB Output is correct
38 Correct 3 ms 888 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 376 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 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 632 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 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 760 KB Output is correct
19 Correct 3 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 760 KB Output is correct
22 Correct 2 ms 760 KB Output is correct
23 Correct 2 ms 764 KB Output is correct
24 Correct 2 ms 764 KB Output is correct
25 Correct 2 ms 760 KB Output is correct
26 Correct 2 ms 760 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 760 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 3 ms 888 KB Output is correct
32 Correct 3 ms 760 KB Output is correct
33 Correct 2 ms 760 KB Output is correct
34 Correct 2 ms 760 KB Output is correct
35 Correct 2 ms 760 KB Output is correct
36 Correct 2 ms 760 KB Output is correct
37 Correct 2 ms 760 KB Output is correct
38 Correct 3 ms 888 KB Output is correct
39 Correct 4 ms 3064 KB Output is correct
40 Correct 6 ms 4600 KB Output is correct
41 Correct 6 ms 4600 KB Output is correct
42 Correct 6 ms 4728 KB Output is correct
43 Correct 7 ms 4728 KB Output is correct
44 Correct 6 ms 4732 KB Output is correct
45 Correct 6 ms 4728 KB Output is correct
46 Correct 7 ms 4728 KB Output is correct
47 Correct 6 ms 4600 KB Output is correct
48 Correct 6 ms 4728 KB Output is correct
49 Correct 7 ms 4728 KB Output is correct
50 Correct 6 ms 4732 KB Output is correct
51 Correct 6 ms 4728 KB Output is correct
52 Correct 6 ms 4728 KB Output is correct
53 Correct 5 ms 4728 KB Output is correct
54 Correct 5 ms 4600 KB Output is correct
55 Correct 5 ms 4600 KB Output is correct
56 Correct 5 ms 4600 KB Output is correct
57 Correct 6 ms 4600 KB Output is correct
58 Correct 5 ms 4728 KB Output is correct
59 Correct 5 ms 4600 KB Output is correct
60 Correct 5 ms 4600 KB Output is correct
61 Correct 6 ms 4600 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 376 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 504 KB Output is correct
6 Correct 2 ms 504 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 632 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 504 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 888 KB Output is correct
18 Correct 2 ms 760 KB Output is correct
19 Correct 3 ms 888 KB Output is correct
20 Correct 2 ms 888 KB Output is correct
21 Correct 2 ms 760 KB Output is correct
22 Correct 2 ms 760 KB Output is correct
23 Correct 2 ms 764 KB Output is correct
24 Correct 2 ms 764 KB Output is correct
25 Correct 2 ms 760 KB Output is correct
26 Correct 2 ms 760 KB Output is correct
27 Correct 2 ms 888 KB Output is correct
28 Correct 2 ms 888 KB Output is correct
29 Correct 2 ms 760 KB Output is correct
30 Correct 2 ms 888 KB Output is correct
31 Correct 3 ms 888 KB Output is correct
32 Correct 3 ms 760 KB Output is correct
33 Correct 2 ms 760 KB Output is correct
34 Correct 2 ms 760 KB Output is correct
35 Correct 2 ms 760 KB Output is correct
36 Correct 2 ms 760 KB Output is correct
37 Correct 2 ms 760 KB Output is correct
38 Correct 3 ms 888 KB Output is correct
39 Correct 4 ms 3064 KB Output is correct
40 Correct 6 ms 4600 KB Output is correct
41 Correct 6 ms 4600 KB Output is correct
42 Correct 6 ms 4728 KB Output is correct
43 Correct 7 ms 4728 KB Output is correct
44 Correct 6 ms 4732 KB Output is correct
45 Correct 6 ms 4728 KB Output is correct
46 Correct 7 ms 4728 KB Output is correct
47 Correct 6 ms 4600 KB Output is correct
48 Correct 6 ms 4728 KB Output is correct
49 Correct 7 ms 4728 KB Output is correct
50 Correct 6 ms 4732 KB Output is correct
51 Correct 6 ms 4728 KB Output is correct
52 Correct 6 ms 4728 KB Output is correct
53 Correct 5 ms 4728 KB Output is correct
54 Correct 5 ms 4600 KB Output is correct
55 Correct 5 ms 4600 KB Output is correct
56 Correct 5 ms 4600 KB Output is correct
57 Correct 6 ms 4600 KB Output is correct
58 Correct 5 ms 4728 KB Output is correct
59 Correct 5 ms 4600 KB Output is correct
60 Correct 5 ms 4600 KB Output is correct
61 Correct 6 ms 4600 KB Output is correct
62 Correct 21 ms 20088 KB Output is correct
63 Correct 54 ms 43516 KB Output is correct
64 Correct 52 ms 43640 KB Output is correct
65 Correct 52 ms 43640 KB Output is correct
66 Correct 53 ms 43616 KB Output is correct
67 Correct 53 ms 43640 KB Output is correct
68 Correct 52 ms 43640 KB Output is correct
69 Correct 52 ms 43640 KB Output is correct
70 Correct 54 ms 43640 KB Output is correct
71 Correct 54 ms 43640 KB Output is correct
72 Correct 54 ms 43564 KB Output is correct
73 Correct 53 ms 43640 KB Output is correct
74 Correct 53 ms 43640 KB Output is correct
75 Correct 54 ms 43640 KB Output is correct
76 Correct 52 ms 43640 KB Output is correct
77 Correct 57 ms 43640 KB Output is correct
78 Correct 57 ms 43640 KB Output is correct
79 Correct 57 ms 43516 KB Output is correct
80 Correct 57 ms 43640 KB Output is correct
81 Correct 57 ms 43568 KB Output is correct
82 Correct 52 ms 43640 KB Output is correct
83 Correct 53 ms 43640 KB Output is correct
84 Correct 52 ms 43640 KB Output is correct
85 Correct 52 ms 43516 KB Output is correct
86 Correct 52 ms 43512 KB Output is correct