oj.uz

Submission #749205

# Submission time Handle Problem Language Result Execution time Memory
749205 2023-05-27T14:29:20 Z Desh03 Collecting Stamps 3 (JOI20_ho_t3) C++17
5 / 100
 7 ms 468 KB 
#include <bits/stdc++.h>
using namespace std;

map<int, int> mp;
set<int> x;
multiset<int> y;
int l;
vector<vector<int>> dp;

int recurse(int cur, int t, int ll, int rr) {
    if (x.empty() || *--y.end() < t) return 0;
    if (dp[ll][rr] != -1) return dp[ll][rr];
    auto it = x.upper_bound(cur);
    bool k = 0;
    if (it == x.begin()) k = 1, it = --x.end();
    else --it;
    int p = *it;
    x.erase(p);
    y.erase(y.find(mp[p]));
    int cost = (k ? cur + l - p : cur - p);
    int g = (t + cost <= mp[p]) + recurse(p, t + cost, ll + 1, rr);
    x.insert(p);
    y.insert(mp[p]);
    it = x.upper_bound(cur);
    k = 0;
    if (it == x.end()) k = 1, it = x.begin();
    p = *it;
    cost = (k ? l - cur + p : p - cur);
    x.erase(p);
    y.erase(y.find(mp[p]));
    g = max(g, (t + cost <= mp[p]) + recurse(p, t + cost, ll, rr + 1));
    x.insert(p);
    y.insert(mp[p]);
    return dp[ll][rr] = g;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n >> l;
    for (int i = 0; i < n; i++) {
        int k;
        cin >> k;
        x.insert(k);
    }
    dp = vector<vector<int>> (n, vector<int> (n, -1));
    for (auto k : x) cin >> mp[k], y.insert(mp[k]);
    cout << recurse(0, 0, 0, 0) << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 276 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 224 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 276 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 224 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Incorrect 1 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 276 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 224 KB Output is correct
18 Incorrect 7 ms 468 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #4
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 316 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 276 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 320 KB Output is correct
17 Correct 1 ms 224 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Incorrect 1 ms 212 KB Output isn't correct
21 Halted 0 ms 0 KB -