oj.uz

Submission #734574

# Submission time Handle Problem Language Result Execution time Memory
734574 2023-05-02T16:28:22 Z abcvuitunggio Mountains (IOI17_mountains) C++17
100 / 100
 97 ms 51916 KB 
#include "mountains.h"
#include <bits/stdc++.h>
#define int long long
using namespace std;
struct point{
    int x,y;
}p[2001];
inline point operator-(point a, point b){
    return {a.x-b.x,a.y-b.y};
}
inline int operator*(point a, point b){
    return a.x*b.y-a.y*b.x;
}
int dp[2001][2001];
vector <int> v[2001];
int f(int i, int j){
    if (i==j)
        return 1;
    if (i>j)
        return 0;
    if (dp[i][j]!=-1)
        return dp[i][j];
    int res=1;
    for (int k=0;k<v[j].size()-1;k++)
        res+=f(max(v[j][k]+1,i),v[j][k+1]-1);
    return dp[i][j]=max(f(i,j-1),res);
}
int32_t maximum_deevs(vector <int32_t> y){
    for (int i=1;i<=y.size();i++){
        v[i].push_back(0);
        p[i]={i,y[i-1]};
        for (int j=1;j<i;j++){
            while (v[i].size()>1&&(p[j]-p[i])*(p[v[i].back()]-p[i])>0)
                v[i].pop_back();
            v[i].push_back(j);
        }
    }
    memset(dp,-1,sizeof(dp));
    return f(1,y.size());
}

Compilation message

mountains.cpp: In function 'long long int f(long long int, long long int)':
mountains.cpp:24:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for (int k=0;k<v[j].size()-1;k++)
      |                  ~^~~~~~~~~~~~~~
mountains.cpp: In function 'int32_t maximum_deevs(std::vector<int>)':
mountains.cpp:29:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for (int i=1;i<=y.size();i++){
      |                  ~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 31572 KB Output is correct
2 Correct 13 ms 31572 KB Output is correct
3 Correct 13 ms 31572 KB Output is correct
4 Correct 13 ms 31572 KB Output is correct
5 Correct 14 ms 31620 KB Output is correct
6 Correct 14 ms 31604 KB Output is correct
7 Correct 13 ms 31636 KB Output is correct
8 Correct 17 ms 31660 KB Output is correct
9 Correct 17 ms 31700 KB Output is correct
10 Correct 14 ms 31572 KB Output is correct
11 Correct 13 ms 31608 KB Output is correct
12 Correct 13 ms 31604 KB Output is correct
13 Correct 13 ms 31700 KB Output is correct
14 Correct 14 ms 31572 KB Output is correct
15 Correct 13 ms 31700 KB Output is correct
16 Correct 14 ms 31612 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 31572 KB Output is correct
2 Correct 13 ms 31572 KB Output is correct
3 Correct 13 ms 31572 KB Output is correct
4 Correct 13 ms 31572 KB Output is correct
5 Correct 14 ms 31620 KB Output is correct
6 Correct 14 ms 31604 KB Output is correct
7 Correct 13 ms 31636 KB Output is correct
8 Correct 17 ms 31660 KB Output is correct
9 Correct 17 ms 31700 KB Output is correct
10 Correct 14 ms 31572 KB Output is correct
11 Correct 13 ms 31608 KB Output is correct
12 Correct 13 ms 31604 KB Output is correct
13 Correct 13 ms 31700 KB Output is correct
14 Correct 14 ms 31572 KB Output is correct
15 Correct 13 ms 31700 KB Output is correct
16 Correct 14 ms 31612 KB Output is correct
17 Correct 17 ms 31700 KB Output is correct
18 Correct 14 ms 31700 KB Output is correct
19 Correct 13 ms 31700 KB Output is correct
20 Correct 16 ms 31700 KB Output is correct
21 Correct 13 ms 31692 KB Output is correct
22 Correct 14 ms 31660 KB Output is correct
23 Correct 14 ms 31624 KB Output is correct
24 Correct 17 ms 31700 KB Output is correct
25 Correct 14 ms 31588 KB Output is correct
26 Correct 16 ms 31584 KB Output is correct
27 Correct 14 ms 31688 KB Output is correct
28 Correct 13 ms 31700 KB Output is correct
29 Correct 15 ms 31636 KB Output is correct
30 Correct 15 ms 31600 KB Output is correct
31 Correct 14 ms 31700 KB Output is correct
32 Correct 14 ms 31620 KB Output is correct
33 Correct 14 ms 31584 KB Output is correct
34 Correct 14 ms 31700 KB Output is correct
35 Correct 13 ms 31600 KB Output is correct
36 Correct 14 ms 31700 KB Output is correct
37 Correct 14 ms 31700 KB Output is correct
38 Correct 13 ms 31588 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 31572 KB Output is correct
2 Correct 13 ms 31572 KB Output is correct
3 Correct 13 ms 31572 KB Output is correct
4 Correct 13 ms 31572 KB Output is correct
5 Correct 14 ms 31620 KB Output is correct
6 Correct 14 ms 31604 KB Output is correct
7 Correct 13 ms 31636 KB Output is correct
8 Correct 17 ms 31660 KB Output is correct
9 Correct 17 ms 31700 KB Output is correct
10 Correct 14 ms 31572 KB Output is correct
11 Correct 13 ms 31608 KB Output is correct
12 Correct 13 ms 31604 KB Output is correct
13 Correct 13 ms 31700 KB Output is correct
14 Correct 14 ms 31572 KB Output is correct
15 Correct 13 ms 31700 KB Output is correct
16 Correct 14 ms 31612 KB Output is correct
17 Correct 17 ms 31700 KB Output is correct
18 Correct 14 ms 31700 KB Output is correct
19 Correct 13 ms 31700 KB Output is correct
20 Correct 16 ms 31700 KB Output is correct
21 Correct 13 ms 31692 KB Output is correct
22 Correct 14 ms 31660 KB Output is correct
23 Correct 14 ms 31624 KB Output is correct
24 Correct 17 ms 31700 KB Output is correct
25 Correct 14 ms 31588 KB Output is correct
26 Correct 16 ms 31584 KB Output is correct
27 Correct 14 ms 31688 KB Output is correct
28 Correct 13 ms 31700 KB Output is correct
29 Correct 15 ms 31636 KB Output is correct
30 Correct 15 ms 31600 KB Output is correct
31 Correct 14 ms 31700 KB Output is correct
32 Correct 14 ms 31620 KB Output is correct
33 Correct 14 ms 31584 KB Output is correct
34 Correct 14 ms 31700 KB Output is correct
35 Correct 13 ms 31600 KB Output is correct
36 Correct 14 ms 31700 KB Output is correct
37 Correct 14 ms 31700 KB Output is correct
38 Correct 13 ms 31588 KB Output is correct
39 Correct 13 ms 31700 KB Output is correct
40 Correct 15 ms 31700 KB Output is correct
41 Correct 14 ms 31712 KB Output is correct
42 Correct 15 ms 31700 KB Output is correct
43 Correct 14 ms 31700 KB Output is correct
44 Correct 14 ms 31700 KB Output is correct
45 Correct 14 ms 31956 KB Output is correct
46 Correct 15 ms 31944 KB Output is correct
47 Correct 17 ms 31940 KB Output is correct
48 Correct 15 ms 31956 KB Output is correct
49 Correct 14 ms 32032 KB Output is correct
50 Correct 14 ms 31968 KB Output is correct
51 Correct 14 ms 31700 KB Output is correct
52 Correct 16 ms 32100 KB Output is correct
53 Correct 16 ms 32084 KB Output is correct
54 Correct 16 ms 32148 KB Output is correct
55 Correct 17 ms 32212 KB Output is correct
56 Correct 15 ms 32100 KB Output is correct
57 Correct 13 ms 31704 KB Output is correct
58 Correct 14 ms 31700 KB Output is correct
59 Correct 15 ms 31780 KB Output is correct
60 Correct 15 ms 31668 KB Output is correct
61 Correct 14 ms 31700 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 31572 KB Output is correct
2 Correct 13 ms 31572 KB Output is correct
3 Correct 13 ms 31572 KB Output is correct
4 Correct 13 ms 31572 KB Output is correct
5 Correct 14 ms 31620 KB Output is correct
6 Correct 14 ms 31604 KB Output is correct
7 Correct 13 ms 31636 KB Output is correct
8 Correct 17 ms 31660 KB Output is correct
9 Correct 17 ms 31700 KB Output is correct
10 Correct 14 ms 31572 KB Output is correct
11 Correct 13 ms 31608 KB Output is correct
12 Correct 13 ms 31604 KB Output is correct
13 Correct 13 ms 31700 KB Output is correct
14 Correct 14 ms 31572 KB Output is correct
15 Correct 13 ms 31700 KB Output is correct
16 Correct 14 ms 31612 KB Output is correct
17 Correct 17 ms 31700 KB Output is correct
18 Correct 14 ms 31700 KB Output is correct
19 Correct 13 ms 31700 KB Output is correct
20 Correct 16 ms 31700 KB Output is correct
21 Correct 13 ms 31692 KB Output is correct
22 Correct 14 ms 31660 KB Output is correct
23 Correct 14 ms 31624 KB Output is correct
24 Correct 17 ms 31700 KB Output is correct
25 Correct 14 ms 31588 KB Output is correct
26 Correct 16 ms 31584 KB Output is correct
27 Correct 14 ms 31688 KB Output is correct
28 Correct 13 ms 31700 KB Output is correct
29 Correct 15 ms 31636 KB Output is correct
30 Correct 15 ms 31600 KB Output is correct
31 Correct 14 ms 31700 KB Output is correct
32 Correct 14 ms 31620 KB Output is correct
33 Correct 14 ms 31584 KB Output is correct
34 Correct 14 ms 31700 KB Output is correct
35 Correct 13 ms 31600 KB Output is correct
36 Correct 14 ms 31700 KB Output is correct
37 Correct 14 ms 31700 KB Output is correct
38 Correct 13 ms 31588 KB Output is correct
39 Correct 13 ms 31700 KB Output is correct
40 Correct 15 ms 31700 KB Output is correct
41 Correct 14 ms 31712 KB Output is correct
42 Correct 15 ms 31700 KB Output is correct
43 Correct 14 ms 31700 KB Output is correct
44 Correct 14 ms 31700 KB Output is correct
45 Correct 14 ms 31956 KB Output is correct
46 Correct 15 ms 31944 KB Output is correct
47 Correct 17 ms 31940 KB Output is correct
48 Correct 15 ms 31956 KB Output is correct
49 Correct 14 ms 32032 KB Output is correct
50 Correct 14 ms 31968 KB Output is correct
51 Correct 14 ms 31700 KB Output is correct
52 Correct 16 ms 32100 KB Output is correct
53 Correct 16 ms 32084 KB Output is correct
54 Correct 16 ms 32148 KB Output is correct
55 Correct 17 ms 32212 KB Output is correct
56 Correct 15 ms 32100 KB Output is correct
57 Correct 13 ms 31704 KB Output is correct
58 Correct 14 ms 31700 KB Output is correct
59 Correct 15 ms 31780 KB Output is correct
60 Correct 15 ms 31668 KB Output is correct
61 Correct 14 ms 31700 KB Output is correct
62 Correct 21 ms 31852 KB Output is correct
63 Correct 34 ms 31980 KB Output is correct
64 Correct 33 ms 31948 KB Output is correct
65 Correct 32 ms 31992 KB Output is correct
66 Correct 30 ms 31912 KB Output is correct
67 Correct 39 ms 31948 KB Output is correct
68 Correct 30 ms 31956 KB Output is correct
69 Correct 33 ms 31976 KB Output is correct
70 Correct 34 ms 44788 KB Output is correct
71 Correct 35 ms 45272 KB Output is correct
72 Correct 36 ms 44456 KB Output is correct
73 Correct 36 ms 44616 KB Output is correct
74 Correct 44 ms 44924 KB Output is correct
75 Correct 35 ms 44788 KB Output is correct
76 Correct 28 ms 31908 KB Output is correct
77 Correct 90 ms 51868 KB Output is correct
78 Correct 83 ms 51852 KB Output is correct
79 Correct 96 ms 51916 KB Output is correct
80 Correct 97 ms 51904 KB Output is correct
81 Correct 92 ms 51900 KB Output is correct
82 Correct 22 ms 31820 KB Output is correct
83 Correct 36 ms 33280 KB Output is correct
84 Correct 33 ms 32844 KB Output is correct
85 Correct 29 ms 31924 KB Output is correct
86 Correct 29 ms 31944 KB Output is correct