oj.uz

답안 #528942

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
528942 2022-02-21T19:24:11 Z tabr Mountains (IOI17_mountains) C++17
100 / 100
 45 ms 16256 KB 
#include <bits/stdc++.h>
using namespace std;
#ifdef tabr
#include "library/debug.cpp"
#else
#define debug(...)
#endif

int maximum_deevs(vector<int> y) {
    int n = (int) y.size();
    vector<vector<int>> dp(n + 1, vector<int>(n + 1));
    function<int(int, int)> solve = [&](int l, int r) {
        if (l >= r) {
            return 0;
        }
        if (dp[l][r]) {
            return dp[l][r];
        }
        int pos = (int) (max_element(y.begin() + l, y.begin() + r) - y.begin());
        dp[l][r] = 1;
        int lst = pos;
        pair<int, int> a = make_pair(1, 0);
        for (int i = pos - 1; i >= l; i--) {
            auto b = make_pair(y[pos] - y[i], pos - i);
            if (1LL * a.first * b.second >= 1LL * a.second * b.first) {
                a = b;
                dp[l][r] += solve(i + 1, lst);
                lst = i;
            }
        }
        dp[l][r] += solve(l, lst);
        lst = pos;
        a = make_pair(1, 0);
        for (int i = pos + 1; i < r; i++) {
            auto b = make_pair(y[pos] - y[i], i - pos);
            if (1LL * a.first * b.second >= 1LL * a.second * b.first) {
                a = b;
                dp[l][r] += solve(lst + 1, i);
                lst = i;
            }
        }
        dp[l][r] += solve(lst + 1, r);
        dp[l][r] = max(dp[l][r], solve(l, pos) + solve(pos + 1, r));
        return dp[l][r];
    };
    return solve(0, n);
}

#ifdef tabr
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    debug(maximum_deevs({6, 1, 5, 2, 3, 1}));
    debug(maximum_deevs({0, 1, 2}));
    return 0;
}
#endif

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 0 ms 204 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 588 KB Output is correct
41 Correct 1 ms 588 KB Output is correct
42 Correct 1 ms 588 KB Output is correct
43 Correct 1 ms 588 KB Output is correct
44 Correct 1 ms 588 KB Output is correct
45 Correct 1 ms 588 KB Output is correct
46 Correct 1 ms 588 KB Output is correct
47 Correct 1 ms 588 KB Output is correct
48 Correct 1 ms 588 KB Output is correct
49 Correct 1 ms 588 KB Output is correct
50 Correct 1 ms 588 KB Output is correct
51 Correct 1 ms 588 KB Output is correct
52 Correct 4 ms 588 KB Output is correct
53 Correct 2 ms 676 KB Output is correct
54 Correct 3 ms 588 KB Output is correct
55 Correct 3 ms 588 KB Output is correct
56 Correct 3 ms 588 KB Output is correct
57 Correct 1 ms 588 KB Output is correct
58 Correct 1 ms 588 KB Output is correct
59 Correct 1 ms 588 KB Output is correct
60 Correct 1 ms 588 KB Output is correct
61 Correct 1 ms 588 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 0 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 0 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 588 KB Output is correct
41 Correct 1 ms 588 KB Output is correct
42 Correct 1 ms 588 KB Output is correct
43 Correct 1 ms 588 KB Output is correct
44 Correct 1 ms 588 KB Output is correct
45 Correct 1 ms 588 KB Output is correct
46 Correct 1 ms 588 KB Output is correct
47 Correct 1 ms 588 KB Output is correct
48 Correct 1 ms 588 KB Output is correct
49 Correct 1 ms 588 KB Output is correct
50 Correct 1 ms 588 KB Output is correct
51 Correct 1 ms 588 KB Output is correct
52 Correct 4 ms 588 KB Output is correct
53 Correct 2 ms 676 KB Output is correct
54 Correct 3 ms 588 KB Output is correct
55 Correct 3 ms 588 KB Output is correct
56 Correct 3 ms 588 KB Output is correct
57 Correct 1 ms 588 KB Output is correct
58 Correct 1 ms 588 KB Output is correct
59 Correct 1 ms 588 KB Output is correct
60 Correct 1 ms 588 KB Output is correct
61 Correct 1 ms 588 KB Output is correct
62 Correct 2 ms 4172 KB Output is correct
63 Correct 7 ms 16032 KB Output is correct
64 Correct 8 ms 16044 KB Output is correct
65 Correct 8 ms 16044 KB Output is correct
66 Correct 7 ms 16056 KB Output is correct
67 Correct 8 ms 16004 KB Output is correct
68 Correct 8 ms 16076 KB Output is correct
69 Correct 9 ms 16076 KB Output is correct
70 Correct 16 ms 16140 KB Output is correct
71 Correct 16 ms 16236 KB Output is correct
72 Correct 17 ms 16228 KB Output is correct
73 Correct 16 ms 16172 KB Output is correct
74 Correct 17 ms 16176 KB Output is correct
75 Correct 17 ms 16204 KB Output is correct
76 Correct 10 ms 15960 KB Output is correct
77 Correct 43 ms 16192 KB Output is correct
78 Correct 40 ms 16232 KB Output is correct
79 Correct 45 ms 16196 KB Output is correct
80 Correct 42 ms 16144 KB Output is correct
81 Correct 41 ms 16196 KB Output is correct
82 Correct 14 ms 16172 KB Output is correct
83 Correct 17 ms 16076 KB Output is correct
84 Correct 16 ms 16068 KB Output is correct
85 Correct 14 ms 16256 KB Output is correct
86 Correct 15 ms 16204 KB Output is correct