oj.uz

답안 #339943

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
339943 2020-12-26T11:48:20 Z Vladth11 Mountains (IOI17_mountains) C++14
100 / 100
 59 ms 23148 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define debug(x) cerr << #x << " " << x << "\n"
#define debug_with_space(x) cerr << #x << " " << x << " "
#include "mountains.h"

using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef pair <ll, ll> pii;
typedef pair <ll, pii> piii;
typedef tree <pii, null_type, less <pii>, rb_tree_tag, tree_order_statistics_node_update> OST;

const ll NMAX = 2001;
const ll INF = (1LL << 60);
const ll MOD = 1000000007;
const ll BLOCK = 101;
const ll nr_of_bits = 35;

ll dp[NMAX][NMAX];

class ConvexHull{
    pii stiva[NMAX];
    ll vf;
    bool OK(pii a, pii b, pii c){
        return ((a.first * (b.second - c.second) + b.first * (c.second - a.second) + c.first * (a.second - b.second)) <= 0);
    }
public:
    ll size(){
        return vf;
    }
    void clear(){
        vf = 0;
    }
    ll last(){
        return stiva[vf].first;
    }
    ll lastbutone(){
        return stiva[vf - 1].first;
    }
    void push(pii x){
        while(vf > 1 && OK(stiva[vf], stiva[vf - 1], x)){
            vf--;
        }
        stiva[++vf] = x;
    }
}hull;

int maximum_deevs(vector<int> y) {
    ll i, j, maxim = 0;
    ll n = y.size();
    for(i = n; i >= 1; i--) {
        hull.clear();
        for(j = i; j <= n; j++) {
            hull.push({j, y[j - 1]});
            ll ultim = hull.last();
            dp[i][j] = 1;
            dp[i][j] = max(dp[i][j], dp[i][j - 1]);
            dp[i][j] = max(dp[i][j], dp[i][ultim - 1] + dp[ultim + 1][j]);
            if(hull.size() > 1) {
                ll penultim = hull.lastbutone();
                dp[i][j] = max(dp[i][j], dp[i][penultim - 1] + dp[penultim + 1][j]);
            }
            maxim = max(maxim, dp[i][j]);
        }
    }
    return maxim;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 492 KB Output is correct
24 Correct 1 ms 492 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 1 ms 492 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 492 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 492 KB Output is correct
24 Correct 1 ms 492 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 1 ms 492 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 492 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 2 ms 1388 KB Output is correct
40 Correct 2 ms 1900 KB Output is correct
41 Correct 2 ms 1900 KB Output is correct
42 Correct 2 ms 1900 KB Output is correct
43 Correct 2 ms 1900 KB Output is correct
44 Correct 2 ms 1900 KB Output is correct
45 Correct 2 ms 1900 KB Output is correct
46 Correct 2 ms 1900 KB Output is correct
47 Correct 2 ms 1900 KB Output is correct
48 Correct 2 ms 1900 KB Output is correct
49 Correct 2 ms 1900 KB Output is correct
50 Correct 3 ms 1900 KB Output is correct
51 Correct 2 ms 2172 KB Output is correct
52 Correct 2 ms 1900 KB Output is correct
53 Correct 2 ms 1900 KB Output is correct
54 Correct 2 ms 1900 KB Output is correct
55 Correct 2 ms 1900 KB Output is correct
56 Correct 2 ms 1920 KB Output is correct
57 Correct 2 ms 1900 KB Output is correct
58 Correct 2 ms 1900 KB Output is correct
59 Correct 2 ms 1900 KB Output is correct
60 Correct 2 ms 1900 KB Output is correct
61 Correct 2 ms 1900 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 492 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 492 KB Output is correct
9 Correct 1 ms 492 KB Output is correct
10 Correct 1 ms 492 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 492 KB Output is correct
13 Correct 1 ms 492 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 1 ms 492 KB Output is correct
19 Correct 1 ms 492 KB Output is correct
20 Correct 1 ms 492 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 492 KB Output is correct
23 Correct 1 ms 492 KB Output is correct
24 Correct 1 ms 492 KB Output is correct
25 Correct 1 ms 492 KB Output is correct
26 Correct 1 ms 492 KB Output is correct
27 Correct 1 ms 492 KB Output is correct
28 Correct 1 ms 492 KB Output is correct
29 Correct 1 ms 492 KB Output is correct
30 Correct 1 ms 492 KB Output is correct
31 Correct 1 ms 492 KB Output is correct
32 Correct 1 ms 492 KB Output is correct
33 Correct 1 ms 492 KB Output is correct
34 Correct 1 ms 492 KB Output is correct
35 Correct 1 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 1 ms 492 KB Output is correct
39 Correct 2 ms 1388 KB Output is correct
40 Correct 2 ms 1900 KB Output is correct
41 Correct 2 ms 1900 KB Output is correct
42 Correct 2 ms 1900 KB Output is correct
43 Correct 2 ms 1900 KB Output is correct
44 Correct 2 ms 1900 KB Output is correct
45 Correct 2 ms 1900 KB Output is correct
46 Correct 2 ms 1900 KB Output is correct
47 Correct 2 ms 1900 KB Output is correct
48 Correct 2 ms 1900 KB Output is correct
49 Correct 2 ms 1900 KB Output is correct
50 Correct 3 ms 1900 KB Output is correct
51 Correct 2 ms 2172 KB Output is correct
52 Correct 2 ms 1900 KB Output is correct
53 Correct 2 ms 1900 KB Output is correct
54 Correct 2 ms 1900 KB Output is correct
55 Correct 2 ms 1900 KB Output is correct
56 Correct 2 ms 1920 KB Output is correct
57 Correct 2 ms 1900 KB Output is correct
58 Correct 2 ms 1900 KB Output is correct
59 Correct 2 ms 1900 KB Output is correct
60 Correct 2 ms 1900 KB Output is correct
61 Correct 2 ms 1900 KB Output is correct
62 Correct 12 ms 8300 KB Output is correct
63 Correct 58 ms 23020 KB Output is correct
64 Correct 56 ms 23148 KB Output is correct
65 Correct 56 ms 23020 KB Output is correct
66 Correct 55 ms 23020 KB Output is correct
67 Correct 56 ms 23020 KB Output is correct
68 Correct 59 ms 23020 KB Output is correct
69 Correct 54 ms 23020 KB Output is correct
70 Correct 49 ms 23020 KB Output is correct
71 Correct 51 ms 23020 KB Output is correct
72 Correct 49 ms 23020 KB Output is correct
73 Correct 48 ms 23020 KB Output is correct
74 Correct 47 ms 23020 KB Output is correct
75 Correct 51 ms 23020 KB Output is correct
76 Correct 51 ms 23124 KB Output is correct
77 Correct 47 ms 23020 KB Output is correct
78 Correct 48 ms 23020 KB Output is correct
79 Correct 48 ms 23148 KB Output is correct
80 Correct 46 ms 23020 KB Output is correct
81 Correct 46 ms 23020 KB Output is correct
82 Correct 48 ms 23020 KB Output is correct
83 Correct 52 ms 23020 KB Output is correct
84 Correct 57 ms 23020 KB Output is correct
85 Correct 54 ms 23020 KB Output is correct
86 Correct 50 ms 23020 KB Output is correct