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Submission #40373

# Submission time Handle Problem Language Result Execution time Memory
40373 2018-01-31T12:40:12 Z model_code Mountains (IOI17_mountains) C++11
70 / 100
 1000 ms 11160 KB 
#include<iostream>
#include<algorithm>
#include "mountains.h"

using namespace std;

const int MAXN=5000;
long long h[MAXN];
int n,ans,dp[MAXN][MAXN];
bool mark[MAXN][MAXN];

long long cross(int i,int j,int k)
{
  return (j-i)*(h[k]-h[i])-(h[j]-h[i])*(k-i);
}

int maximum_deevs(vector<int> y)
{
	int n = y.size();
  for(int i=0;i<n;i++)
    h[i]=y[i];
  for(int i=0;i<n;i++)
    for(int j=i+1;j<n;j++)
      {
	mark[i][j]=true;
	for(int k=i+1;k<j;k++)
	  if(cross(i,j,k)>0)
	    mark[i][j]=false;
      }
  for(int j=0;j<n;j++)
    for(int i=0;i<=j;i++)
      {
	dp[i][j]=dp[i][j-1];
	int res=1,last=i-1;
	for(int k=i;k<j;k++)
	  {
	    if(mark[k][j]){
	      res+=dp[last+1][k-1];
	      last=k;
	    }
	  }
	res+=dp[last+1][j-1];
	dp[i][j]=max(dp[i][j],res);
	//	cout<<i<<" "<<j<<" "<<res<<" "<<dp[i][j]<<endl;
      }
  return dp[0][n-1];
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 2 ms 424 KB Output is correct
4 Correct 2 ms 424 KB Output is correct
5 Correct 1 ms 496 KB Output is correct
6 Correct 2 ms 624 KB Output is correct
7 Correct 2 ms 624 KB Output is correct
8 Correct 2 ms 660 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 2 ms 732 KB Output is correct
11 Correct 2 ms 732 KB Output is correct
12 Correct 2 ms 732 KB Output is correct
13 Correct 2 ms 732 KB Output is correct
14 Correct 2 ms 748 KB Output is correct
15 Correct 2 ms 748 KB Output is correct
16 Correct 2 ms 748 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 2 ms 424 KB Output is correct
4 Correct 2 ms 424 KB Output is correct
5 Correct 1 ms 496 KB Output is correct
6 Correct 2 ms 624 KB Output is correct
7 Correct 2 ms 624 KB Output is correct
8 Correct 2 ms 660 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 2 ms 732 KB Output is correct
11 Correct 2 ms 732 KB Output is correct
12 Correct 2 ms 732 KB Output is correct
13 Correct 2 ms 732 KB Output is correct
14 Correct 2 ms 748 KB Output is correct
15 Correct 2 ms 748 KB Output is correct
16 Correct 2 ms 748 KB Output is correct
17 Correct 2 ms 876 KB Output is correct
18 Correct 2 ms 876 KB Output is correct
19 Correct 2 ms 880 KB Output is correct
20 Correct 2 ms 880 KB Output is correct
21 Correct 2 ms 880 KB Output is correct
22 Correct 2 ms 880 KB Output is correct
23 Correct 2 ms 880 KB Output is correct
24 Correct 2 ms 880 KB Output is correct
25 Correct 2 ms 880 KB Output is correct
26 Correct 2 ms 880 KB Output is correct
27 Correct 2 ms 880 KB Output is correct
28 Correct 2 ms 880 KB Output is correct
29 Correct 2 ms 880 KB Output is correct
30 Correct 2 ms 880 KB Output is correct
31 Correct 2 ms 880 KB Output is correct
32 Correct 2 ms 880 KB Output is correct
33 Correct 2 ms 880 KB Output is correct
34 Correct 2 ms 944 KB Output is correct
35 Correct 2 ms 944 KB Output is correct
36 Correct 2 ms 944 KB Output is correct
37 Correct 2 ms 944 KB Output is correct
38 Correct 2 ms 944 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 2 ms 424 KB Output is correct
4 Correct 2 ms 424 KB Output is correct
5 Correct 1 ms 496 KB Output is correct
6 Correct 2 ms 624 KB Output is correct
7 Correct 2 ms 624 KB Output is correct
8 Correct 2 ms 660 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 2 ms 732 KB Output is correct
11 Correct 2 ms 732 KB Output is correct
12 Correct 2 ms 732 KB Output is correct
13 Correct 2 ms 732 KB Output is correct
14 Correct 2 ms 748 KB Output is correct
15 Correct 2 ms 748 KB Output is correct
16 Correct 2 ms 748 KB Output is correct
17 Correct 2 ms 876 KB Output is correct
18 Correct 2 ms 876 KB Output is correct
19 Correct 2 ms 880 KB Output is correct
20 Correct 2 ms 880 KB Output is correct
21 Correct 2 ms 880 KB Output is correct
22 Correct 2 ms 880 KB Output is correct
23 Correct 2 ms 880 KB Output is correct
24 Correct 2 ms 880 KB Output is correct
25 Correct 2 ms 880 KB Output is correct
26 Correct 2 ms 880 KB Output is correct
27 Correct 2 ms 880 KB Output is correct
28 Correct 2 ms 880 KB Output is correct
29 Correct 2 ms 880 KB Output is correct
30 Correct 2 ms 880 KB Output is correct
31 Correct 2 ms 880 KB Output is correct
32 Correct 2 ms 880 KB Output is correct
33 Correct 2 ms 880 KB Output is correct
34 Correct 2 ms 944 KB Output is correct
35 Correct 2 ms 944 KB Output is correct
36 Correct 2 ms 944 KB Output is correct
37 Correct 2 ms 944 KB Output is correct
38 Correct 2 ms 944 KB Output is correct
39 Correct 9 ms 2284 KB Output is correct
40 Correct 26 ms 3180 KB Output is correct
41 Correct 26 ms 3240 KB Output is correct
42 Correct 26 ms 3308 KB Output is correct
43 Correct 25 ms 3308 KB Output is correct
44 Correct 30 ms 3308 KB Output is correct
45 Correct 20 ms 3308 KB Output is correct
46 Correct 19 ms 3308 KB Output is correct
47 Correct 21 ms 3308 KB Output is correct
48 Correct 21 ms 3308 KB Output is correct
49 Correct 22 ms 3308 KB Output is correct
50 Correct 20 ms 3308 KB Output is correct
51 Correct 20 ms 3308 KB Output is correct
52 Correct 27 ms 3308 KB Output is correct
53 Correct 21 ms 3308 KB Output is correct
54 Correct 23 ms 3308 KB Output is correct
55 Correct 23 ms 3308 KB Output is correct
56 Correct 21 ms 3308 KB Output is correct
57 Correct 16 ms 3308 KB Output is correct
58 Correct 23 ms 3308 KB Output is correct
59 Correct 25 ms 3308 KB Output is correct
60 Correct 17 ms 3308 KB Output is correct
61 Correct 19 ms 3308 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 1 ms 352 KB Output is correct
3 Correct 2 ms 424 KB Output is correct
4 Correct 2 ms 424 KB Output is correct
5 Correct 1 ms 496 KB Output is correct
6 Correct 2 ms 624 KB Output is correct
7 Correct 2 ms 624 KB Output is correct
8 Correct 2 ms 660 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 2 ms 732 KB Output is correct
11 Correct 2 ms 732 KB Output is correct
12 Correct 2 ms 732 KB Output is correct
13 Correct 2 ms 732 KB Output is correct
14 Correct 2 ms 748 KB Output is correct
15 Correct 2 ms 748 KB Output is correct
16 Correct 2 ms 748 KB Output is correct
17 Correct 2 ms 876 KB Output is correct
18 Correct 2 ms 876 KB Output is correct
19 Correct 2 ms 880 KB Output is correct
20 Correct 2 ms 880 KB Output is correct
21 Correct 2 ms 880 KB Output is correct
22 Correct 2 ms 880 KB Output is correct
23 Correct 2 ms 880 KB Output is correct
24 Correct 2 ms 880 KB Output is correct
25 Correct 2 ms 880 KB Output is correct
26 Correct 2 ms 880 KB Output is correct
27 Correct 2 ms 880 KB Output is correct
28 Correct 2 ms 880 KB Output is correct
29 Correct 2 ms 880 KB Output is correct
30 Correct 2 ms 880 KB Output is correct
31 Correct 2 ms 880 KB Output is correct
32 Correct 2 ms 880 KB Output is correct
33 Correct 2 ms 880 KB Output is correct
34 Correct 2 ms 944 KB Output is correct
35 Correct 2 ms 944 KB Output is correct
36 Correct 2 ms 944 KB Output is correct
37 Correct 2 ms 944 KB Output is correct
38 Correct 2 ms 944 KB Output is correct
39 Correct 9 ms 2284 KB Output is correct
40 Correct 26 ms 3180 KB Output is correct
41 Correct 26 ms 3240 KB Output is correct
42 Correct 26 ms 3308 KB Output is correct
43 Correct 25 ms 3308 KB Output is correct
44 Correct 30 ms 3308 KB Output is correct
45 Correct 20 ms 3308 KB Output is correct
46 Correct 19 ms 3308 KB Output is correct
47 Correct 21 ms 3308 KB Output is correct
48 Correct 21 ms 3308 KB Output is correct
49 Correct 22 ms 3308 KB Output is correct
50 Correct 20 ms 3308 KB Output is correct
51 Correct 20 ms 3308 KB Output is correct
52 Correct 27 ms 3308 KB Output is correct
53 Correct 21 ms 3308 KB Output is correct
54 Correct 23 ms 3308 KB Output is correct
55 Correct 23 ms 3308 KB Output is correct
56 Correct 21 ms 3308 KB Output is correct
57 Correct 16 ms 3308 KB Output is correct
58 Correct 23 ms 3308 KB Output is correct
59 Correct 25 ms 3308 KB Output is correct
60 Correct 17 ms 3308 KB Output is correct
61 Correct 19 ms 3308 KB Output is correct
62 Correct 889 ms 11160 KB Output is correct
63 Execution timed out 1062 ms 11160 KB Time limit exceeded
64 Halted 0 ms 0 KB -