oj.uz

Submission #1000382

# Submission time Handle Problem Language Result Execution time Memory
1000382 2024-06-17T10:55:46 Z makrav Collecting Stamps 3 (JOI20_ho_t3) C++14
100 / 100
 83 ms 145428 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
#define ff first 
#define sc second 
#define pb push_back
#define int ll

int dp[210][210][210][2];

signed main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    int n, l; cin >> n >> l;
    vector<int> x(n + 1, 0);
    for (int i = 1; i <= n; i++) cin >> x[i];
    vector<int> t(n + 1, 0);
    for (int i = 1; i <= n; i++) cin >> t[i];
    auto getd = [&](int i, int j) {
        return min(abs(x[i] - x[j]), l - abs(x[i] - x[j]));
    };
    for (int i = 0; i <= 209; i++) {
        for (int j = 0; j <= 209;j++) {
            for (int cnt = 0; cnt <= 209; cnt++) {
                for (int I = 0; I < 2; I++) dp[i][j][cnt][I] = 1e15;
            }
        }
    }
    dp[1][0][1][0] = 0;
    dp[1][0][1][1] = 0;
    for (int cnt = 2; cnt <= n + 1; cnt++) {
        for (int left = 1; left <= cnt; left++) {
            int right = cnt - left;
            for (int C = 1; C <= cnt; C++) {
                auto relax = [&](int side, int val) {
                    if (val < 1e15) {
                        dp[left][right][C][side] = min(dp[left][right][C][side], val);
                    }
                };
                {
                    int prev_left = (left == 1 ? n : left - 2);
                    int prev_right = (right == 0 ? 0 : n - right + 1);
                    if (dp[left - 1][right][C - 1][0] + getd(prev_left, left - 1) <= t[left - 1]) {
                        relax(0, dp[left - 1][right][C - 1][0] + getd(prev_left, left - 1));
                    }
                    if (dp[left - 1][right][C][0] + getd(prev_left, left - 1) > t[left - 1]) {
                        relax(0, dp[left - 1][right][C][0] + getd(prev_left, left - 1));
                    }
                    if (dp[left - 1][right][C - 1][1] + getd(prev_right, left - 1) <= t[left - 1]) {
                        relax(0, dp[left - 1][right][C - 1][1] + getd(prev_right, left - 1));
                    }
                    if (dp[left - 1][right][C][1] + getd(prev_right, left - 1) > t[left - 1]) {
                        relax(0, dp[left - 1][right][C][1] + getd(prev_right, left - 1));
                    }
                }
                if (right) {
                    int prev_left = left - 1, prev_right = (right == 1 ? 0 : n - (right - 1) + 1);
                    int cur = n - right + 1;
                    if (dp[left][right - 1][C - 1][0] + getd(prev_left, cur) <= t[cur]) {
                        relax(1, dp[left][right - 1][C - 1][0] + getd(prev_left, cur));
                    }
                    if (dp[left][right - 1][C][0] + getd(prev_left, cur) > t[cur]) {
                        relax(1, dp[left][right - 1][C][0] + getd(prev_left, cur));
                    }
                    if (dp[left][right - 1][C - 1][1] + getd(prev_right, cur) <= t[cur]) {
                        relax(1, dp[left][right - 1][C - 1][1] + getd(prev_right, cur));
                    }
                    if (dp[left][right - 1][C][1] + getd(prev_right, cur) > t[cur]) {
                        relax(1, dp[left][right - 1][C][1] + getd(prev_right, cur));
                    }
                }
            }
        }
    }
    int ans = 0;
    for (int left = 1; left <= n + 1; left++) {
        for (int cnt = 1; cnt <= n + 1; cnt++) {
            if (dp[left][n + 1 - left][cnt][0] < 1e15 || dp[left][n + 1 - left][cnt][1] < 1e15) ans = max(ans, cnt); 
        }
    }
    cout << ans - 1 << '\n';

    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 145232 KB Output is correct
2 Correct 42 ms 145300 KB Output is correct
3 Correct 42 ms 145272 KB Output is correct
4 Correct 43 ms 145404 KB Output is correct
5 Correct 41 ms 145236 KB Output is correct
6 Correct 40 ms 145244 KB Output is correct
7 Correct 42 ms 145344 KB Output is correct
8 Correct 43 ms 145232 KB Output is correct
9 Correct 41 ms 145352 KB Output is correct
10 Correct 52 ms 145236 KB Output is correct
11 Correct 42 ms 145236 KB Output is correct
12 Correct 42 ms 145240 KB Output is correct
13 Correct 42 ms 145244 KB Output is correct
14 Correct 42 ms 145232 KB Output is correct
15 Correct 41 ms 145236 KB Output is correct
16 Correct 42 ms 145212 KB Output is correct
17 Correct 40 ms 145244 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 145232 KB Output is correct
2 Correct 42 ms 145300 KB Output is correct
3 Correct 42 ms 145272 KB Output is correct
4 Correct 43 ms 145404 KB Output is correct
5 Correct 41 ms 145236 KB Output is correct
6 Correct 40 ms 145244 KB Output is correct
7 Correct 42 ms 145344 KB Output is correct
8 Correct 43 ms 145232 KB Output is correct
9 Correct 41 ms 145352 KB Output is correct
10 Correct 52 ms 145236 KB Output is correct
11 Correct 42 ms 145236 KB Output is correct
12 Correct 42 ms 145240 KB Output is correct
13 Correct 42 ms 145244 KB Output is correct
14 Correct 42 ms 145232 KB Output is correct
15 Correct 41 ms 145236 KB Output is correct
16 Correct 42 ms 145212 KB Output is correct
17 Correct 40 ms 145244 KB Output is correct
18 Correct 41 ms 145232 KB Output is correct
19 Correct 41 ms 145244 KB Output is correct
20 Correct 41 ms 145264 KB Output is correct
21 Correct 42 ms 145240 KB Output is correct
22 Correct 41 ms 145232 KB Output is correct
23 Correct 41 ms 145232 KB Output is correct
24 Correct 44 ms 145356 KB Output is correct
25 Correct 52 ms 145232 KB Output is correct
26 Correct 43 ms 145236 KB Output is correct
27 Correct 42 ms 145232 KB Output is correct
28 Correct 42 ms 145232 KB Output is correct
29 Correct 43 ms 145236 KB Output is correct
30 Correct 41 ms 145244 KB Output is correct
31 Correct 41 ms 145408 KB Output is correct
32 Correct 42 ms 145232 KB Output is correct
33 Correct 41 ms 145244 KB Output is correct
34 Correct 42 ms 145308 KB Output is correct
35 Correct 43 ms 145368 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 145232 KB Output is correct
2 Correct 42 ms 145300 KB Output is correct
3 Correct 42 ms 145272 KB Output is correct
4 Correct 43 ms 145404 KB Output is correct
5 Correct 41 ms 145236 KB Output is correct
6 Correct 40 ms 145244 KB Output is correct
7 Correct 42 ms 145344 KB Output is correct
8 Correct 43 ms 145232 KB Output is correct
9 Correct 41 ms 145352 KB Output is correct
10 Correct 52 ms 145236 KB Output is correct
11 Correct 42 ms 145236 KB Output is correct
12 Correct 42 ms 145240 KB Output is correct
13 Correct 42 ms 145244 KB Output is correct
14 Correct 42 ms 145232 KB Output is correct
15 Correct 41 ms 145236 KB Output is correct
16 Correct 42 ms 145212 KB Output is correct
17 Correct 40 ms 145244 KB Output is correct
18 Correct 65 ms 145180 KB Output is correct
19 Correct 52 ms 145256 KB Output is correct
20 Correct 46 ms 145236 KB Output is correct
21 Correct 58 ms 145232 KB Output is correct
22 Correct 55 ms 145232 KB Output is correct
23 Correct 57 ms 145228 KB Output is correct
24 Correct 57 ms 145416 KB Output is correct
25 Correct 45 ms 145268 KB Output is correct
26 Correct 42 ms 145284 KB Output is correct
27 Correct 44 ms 145244 KB Output is correct
28 Correct 46 ms 145236 KB Output is correct
29 Correct 45 ms 145312 KB Output is correct
30 Correct 45 ms 145244 KB Output is correct
31 Correct 43 ms 145416 KB Output is correct
32 Correct 44 ms 145240 KB Output is correct
33 Correct 45 ms 145240 KB Output is correct
34 Correct 43 ms 145220 KB Output is correct
35 Correct 45 ms 145244 KB Output is correct
36 Correct 44 ms 145236 KB Output is correct
37 Correct 45 ms 145236 KB Output is correct
38 Correct 42 ms 145244 KB Output is correct
39 Correct 46 ms 145424 KB Output is correct
40 Correct 47 ms 145236 KB Output is correct
41 Correct 71 ms 145232 KB Output is correct
42 Correct 59 ms 145224 KB Output is correct
43 Correct 76 ms 145420 KB Output is correct
44 Correct 57 ms 145232 KB Output is correct
45 Correct 83 ms 145348 KB Output is correct
46 Correct 54 ms 145232 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 145232 KB Output is correct
2 Correct 42 ms 145300 KB Output is correct
3 Correct 42 ms 145272 KB Output is correct
4 Correct 43 ms 145404 KB Output is correct
5 Correct 41 ms 145236 KB Output is correct
6 Correct 40 ms 145244 KB Output is correct
7 Correct 42 ms 145344 KB Output is correct
8 Correct 43 ms 145232 KB Output is correct
9 Correct 41 ms 145352 KB Output is correct
10 Correct 52 ms 145236 KB Output is correct
11 Correct 42 ms 145236 KB Output is correct
12 Correct 42 ms 145240 KB Output is correct
13 Correct 42 ms 145244 KB Output is correct
14 Correct 42 ms 145232 KB Output is correct
15 Correct 41 ms 145236 KB Output is correct
16 Correct 42 ms 145212 KB Output is correct
17 Correct 40 ms 145244 KB Output is correct
18 Correct 41 ms 145232 KB Output is correct
19 Correct 41 ms 145244 KB Output is correct
20 Correct 41 ms 145264 KB Output is correct
21 Correct 42 ms 145240 KB Output is correct
22 Correct 41 ms 145232 KB Output is correct
23 Correct 41 ms 145232 KB Output is correct
24 Correct 44 ms 145356 KB Output is correct
25 Correct 52 ms 145232 KB Output is correct
26 Correct 43 ms 145236 KB Output is correct
27 Correct 42 ms 145232 KB Output is correct
28 Correct 42 ms 145232 KB Output is correct
29 Correct 43 ms 145236 KB Output is correct
30 Correct 41 ms 145244 KB Output is correct
31 Correct 41 ms 145408 KB Output is correct
32 Correct 42 ms 145232 KB Output is correct
33 Correct 41 ms 145244 KB Output is correct
34 Correct 42 ms 145308 KB Output is correct
35 Correct 43 ms 145368 KB Output is correct
36 Correct 65 ms 145180 KB Output is correct
37 Correct 52 ms 145256 KB Output is correct
38 Correct 46 ms 145236 KB Output is correct
39 Correct 58 ms 145232 KB Output is correct
40 Correct 55 ms 145232 KB Output is correct
41 Correct 57 ms 145228 KB Output is correct
42 Correct 57 ms 145416 KB Output is correct
43 Correct 45 ms 145268 KB Output is correct
44 Correct 42 ms 145284 KB Output is correct
45 Correct 44 ms 145244 KB Output is correct
46 Correct 46 ms 145236 KB Output is correct
47 Correct 45 ms 145312 KB Output is correct
48 Correct 45 ms 145244 KB Output is correct
49 Correct 43 ms 145416 KB Output is correct
50 Correct 44 ms 145240 KB Output is correct
51 Correct 45 ms 145240 KB Output is correct
52 Correct 43 ms 145220 KB Output is correct
53 Correct 45 ms 145244 KB Output is correct
54 Correct 44 ms 145236 KB Output is correct
55 Correct 45 ms 145236 KB Output is correct
56 Correct 42 ms 145244 KB Output is correct
57 Correct 46 ms 145424 KB Output is correct
58 Correct 47 ms 145236 KB Output is correct
59 Correct 71 ms 145232 KB Output is correct
60 Correct 59 ms 145224 KB Output is correct
61 Correct 76 ms 145420 KB Output is correct
62 Correct 57 ms 145232 KB Output is correct
63 Correct 83 ms 145348 KB Output is correct
64 Correct 54 ms 145232 KB Output is correct
65 Correct 65 ms 145280 KB Output is correct
66 Correct 62 ms 145244 KB Output is correct
67 Correct 60 ms 145324 KB Output is correct
68 Correct 57 ms 145244 KB Output is correct
69 Correct 63 ms 145232 KB Output is correct
70 Correct 61 ms 145232 KB Output is correct
71 Correct 80 ms 145420 KB Output is correct
72 Correct 63 ms 145232 KB Output is correct
73 Correct 75 ms 145284 KB Output is correct
74 Correct 59 ms 145232 KB Output is correct
75 Correct 61 ms 145232 KB Output is correct
76 Correct 71 ms 145236 KB Output is correct
77 Correct 66 ms 145404 KB Output is correct
78 Correct 68 ms 145232 KB Output is correct
79 Correct 74 ms 145236 KB Output is correct
80 Correct 72 ms 145172 KB Output is correct
81 Correct 62 ms 145424 KB Output is correct
82 Correct 67 ms 145232 KB Output is correct
83 Correct 72 ms 145180 KB Output is correct
84 Correct 71 ms 145208 KB Output is correct
85 Correct 62 ms 145200 KB Output is correct
86 Correct 65 ms 145344 KB Output is correct
87 Correct 60 ms 145224 KB Output is correct
88 Correct 69 ms 145232 KB Output is correct
89 Correct 67 ms 145236 KB Output is correct
90 Correct 57 ms 145400 KB Output is correct
91 Correct 67 ms 145428 KB Output is correct
92 Correct 81 ms 145428 KB Output is correct
93 Correct 62 ms 145292 KB Output is correct