oj.uz

Submission #1071095

# Submission time Handle Problem Language Result Execution time Memory
1071095 2024-08-23T04:31:38 Z thinknoexit Cultivation (JOI17_cultivation) C++17
30 / 100
 1947 ms 596 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 303;
int s[N], e[N];
int main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int r, c;
    cin >> r >> c;
    int n;
    cin >> n;
    for (int i = 1;i <= n;i++) cin >> s[i] >> e[i];
    set<int> up, down;
    for (int i = 1;i <= n;i++) {
        int all = s[i] - 1;
        up.insert(all);
        up.insert(all / 2);
        up.insert((all + 1) / 2);
        all = r - s[i];
        down.insert(all);
        down.insert(all / 2);
        down.insert((all + 1) / 2);
    }
    for (int i = 1;i <= n;i++) {
        for (int j = i + 1;j <= n;j++) {
            int all = abs(s[i] - s[j]) - 1;
            up.insert(all + 1);
            down.insert(all + 1);
            if (all <= 0) continue;
            up.insert((all + 1) / 2);
            down.insert((all + 1) / 2);
            if (all > 1) {
                up.insert(all / 2);
                down.insert(all / 2);
            }
        }
    }
    // iterate for all O(n ^ 2)
    ll mn = LLONG_MAX;
    for (auto& u : up) {
        for (auto& d : down) {
            bool ch = 1;
            int mx = 0;
            int dl = 0, dr = 0;
            multiset<int> ms;
            vector<pair<int, int>> event;
            for (int i = 1;i <= n;i++) {
                event.push_back({ max(1, s[i] - u), e[i] });
                event.push_back({ min(r + 1, s[i] + d + 1), -e[i] });
            }
            ms.insert(0);
            ms.insert(c + 1);
            sort(event.begin(), event.end());
            int sz = event.size();
            if (event[0].first != 1) continue;
            for (int i = 0, j;i < sz;i = j) {
                if (event[i].first == r + 1) break;
                for (j = i;j < sz && event[i].first == event[j].first;j++) {
                    int v = event[j].second;
                    if (v < 0) ms.erase(ms.find(-v));
                    else ms.insert(v);
                }
                for (j = i;j < sz && event[i].first == event[j].first;j++) {
                    int v = abs(event[j].second);
                    int l = *(--ms.lower_bound(abs(v)));
                    int r = *(ms.upper_bound(abs(v)));
                    if (ms.find(v) == ms.end())
                        mx = max(mx, r - l - 1);
                    else
                        mx = max({ mx, v - l - 1, r - v - 1 });
                }
                if ((int)ms.size() == 2) {
                    ch = 0;
                    break;
                }
                int fl = *(ms.upper_bound(0));
                int fr = *(--ms.lower_bound(c + 1));
                dl = max(dl, fl - 1);
                dr = max(dr, c - fr);
            }
            if (ch) {
                mn = min(mn, 0ll + u + d + max(dl + dr, mx));
                //cout << u << ' ' << d << ' ' << dl << ' ' << dr << ' ' << mx << '\n';
            }
        }
    }
    cout << mn << '\n';
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 9 ms 464 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 11 ms 464 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 87 ms 348 KB Output is correct
25 Correct 56 ms 348 KB Output is correct
26 Correct 120 ms 484 KB Output is correct
27 Correct 122 ms 348 KB Output is correct
28 Correct 71 ms 344 KB Output is correct
29 Correct 110 ms 348 KB Output is correct
30 Correct 120 ms 348 KB Output is correct
31 Correct 122 ms 348 KB Output is correct
32 Correct 124 ms 596 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 9 ms 464 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 11 ms 464 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 87 ms 348 KB Output is correct
25 Correct 56 ms 348 KB Output is correct
26 Correct 120 ms 484 KB Output is correct
27 Correct 122 ms 348 KB Output is correct
28 Correct 71 ms 344 KB Output is correct
29 Correct 110 ms 348 KB Output is correct
30 Correct 120 ms 348 KB Output is correct
31 Correct 122 ms 348 KB Output is correct
32 Correct 124 ms 596 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 99 ms 468 KB Output is correct
35 Correct 143 ms 348 KB Output is correct
36 Correct 134 ms 348 KB Output is correct
37 Correct 118 ms 476 KB Output is correct
38 Correct 129 ms 348 KB Output is correct
39 Correct 147 ms 464 KB Output is correct
40 Correct 142 ms 344 KB Output is correct
41 Correct 89 ms 344 KB Output is correct
42 Correct 122 ms 344 KB Output is correct
43 Correct 133 ms 344 KB Output is correct
44 Correct 129 ms 344 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 206 ms 484 KB Output is correct
2 Correct 1613 ms 504 KB Output is correct
3 Correct 1555 ms 504 KB Output is correct
4 Correct 1761 ms 348 KB Output is correct
5 Correct 1908 ms 348 KB Output is correct
6 Correct 177 ms 344 KB Output is correct
7 Correct 4 ms 348 KB Output is correct
8 Correct 1184 ms 348 KB Output is correct
9 Correct 457 ms 476 KB Output is correct
10 Correct 1548 ms 348 KB Output is correct
11 Correct 1933 ms 508 KB Output is correct
12 Correct 1677 ms 508 KB Output is correct
13 Correct 104 ms 456 KB Output is correct
14 Correct 494 ms 472 KB Output is correct
15 Correct 18 ms 344 KB Output is correct
16 Correct 1947 ms 516 KB Output is correct
17 Incorrect 1822 ms 516 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 206 ms 484 KB Output is correct
2 Correct 1613 ms 504 KB Output is correct
3 Correct 1555 ms 504 KB Output is correct
4 Correct 1761 ms 348 KB Output is correct
5 Correct 1908 ms 348 KB Output is correct
6 Correct 177 ms 344 KB Output is correct
7 Correct 4 ms 348 KB Output is correct
8 Correct 1184 ms 348 KB Output is correct
9 Correct 457 ms 476 KB Output is correct
10 Correct 1548 ms 348 KB Output is correct
11 Correct 1933 ms 508 KB Output is correct
12 Correct 1677 ms 508 KB Output is correct
13 Correct 104 ms 456 KB Output is correct
14 Correct 494 ms 472 KB Output is correct
15 Correct 18 ms 344 KB Output is correct
16 Correct 1947 ms 516 KB Output is correct
17 Incorrect 1822 ms 516 KB Output isn't correct
18 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 9 ms 464 KB Output is correct
19 Correct 5 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 11 ms 464 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 87 ms 348 KB Output is correct
25 Correct 56 ms 348 KB Output is correct
26 Correct 120 ms 484 KB Output is correct
27 Correct 122 ms 348 KB Output is correct
28 Correct 71 ms 344 KB Output is correct
29 Correct 110 ms 348 KB Output is correct
30 Correct 120 ms 348 KB Output is correct
31 Correct 122 ms 348 KB Output is correct
32 Correct 124 ms 596 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 99 ms 468 KB Output is correct
35 Correct 143 ms 348 KB Output is correct
36 Correct 134 ms 348 KB Output is correct
37 Correct 118 ms 476 KB Output is correct
38 Correct 129 ms 348 KB Output is correct
39 Correct 147 ms 464 KB Output is correct
40 Correct 142 ms 344 KB Output is correct
41 Correct 89 ms 344 KB Output is correct
42 Correct 122 ms 344 KB Output is correct
43 Correct 133 ms 344 KB Output is correct
44 Correct 129 ms 344 KB Output is correct
45 Correct 206 ms 484 KB Output is correct
46 Correct 1613 ms 504 KB Output is correct
47 Correct 1555 ms 504 KB Output is correct
48 Correct 1761 ms 348 KB Output is correct
49 Correct 1908 ms 348 KB Output is correct
50 Correct 177 ms 344 KB Output is correct
51 Correct 4 ms 348 KB Output is correct
52 Correct 1184 ms 348 KB Output is correct
53 Correct 457 ms 476 KB Output is correct
54 Correct 1548 ms 348 KB Output is correct
55 Correct 1933 ms 508 KB Output is correct
56 Correct 1677 ms 508 KB Output is correct
57 Correct 104 ms 456 KB Output is correct
58 Correct 494 ms 472 KB Output is correct
59 Correct 18 ms 344 KB Output is correct
60 Correct 1947 ms 516 KB Output is correct
61 Incorrect 1822 ms 516 KB Output isn't correct
62 Halted 0 ms 0 KB -