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Submission #1071067

# Submission time Handle Problem Language Result Execution time Memory
1071067 2024-08-23T04:05:02 Z thinknoexit Cultivation (JOI17_cultivation) C++17
30 / 100
 1193 ms 600 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++) {
        up.insert(s[i] - 1);
        down.insert(r - s[i]);
    }
    for (int i = 1;i <= n;i++) {
        for (int j = i + 1;j <= n;j++) {
            int mid = (s[i] + s[j]) / 2;
            int mid1 = (s[i] + s[j]) / 2 + 1;
            up.insert(mid), up.insert(mid1);
            down.insert(mid), down.insert(mid1);
        }
    }
    // 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 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 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 1 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 348 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 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 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 1 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 348 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 10 ms 348 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 17 ms 460 KB Output is correct
22 Correct 44 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 79 ms 480 KB Output is correct
25 Correct 56 ms 448 KB Output is correct
26 Correct 129 ms 464 KB Output is correct
27 Correct 129 ms 348 KB Output is correct
28 Correct 76 ms 344 KB Output is correct
29 Correct 118 ms 348 KB Output is correct
30 Correct 127 ms 348 KB Output is correct
31 Correct 133 ms 348 KB Output is correct
32 Correct 132 ms 460 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 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 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 1 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 348 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 10 ms 348 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 17 ms 460 KB Output is correct
22 Correct 44 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 79 ms 480 KB Output is correct
25 Correct 56 ms 448 KB Output is correct
26 Correct 129 ms 464 KB Output is correct
27 Correct 129 ms 348 KB Output is correct
28 Correct 76 ms 344 KB Output is correct
29 Correct 118 ms 348 KB Output is correct
30 Correct 127 ms 348 KB Output is correct
31 Correct 133 ms 348 KB Output is correct
32 Correct 132 ms 460 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 107 ms 464 KB Output is correct
35 Correct 142 ms 344 KB Output is correct
36 Correct 144 ms 596 KB Output is correct
37 Correct 112 ms 468 KB Output is correct
38 Correct 137 ms 596 KB Output is correct
39 Correct 137 ms 348 KB Output is correct
40 Correct 145 ms 600 KB Output is correct
41 Correct 106 ms 348 KB Output is correct
42 Correct 130 ms 348 KB Output is correct
43 Correct 143 ms 348 KB Output is correct
44 Correct 143 ms 468 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 348 KB Output is correct
2 Correct 921 ms 488 KB Output is correct
3 Correct 1028 ms 496 KB Output is correct
4 Correct 1137 ms 348 KB Output is correct
5 Correct 1193 ms 348 KB Output is correct
6 Incorrect 108 ms 344 KB Output isn't correct
7 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 156 ms 348 KB Output is correct
2 Correct 921 ms 488 KB Output is correct
3 Correct 1028 ms 496 KB Output is correct
4 Correct 1137 ms 348 KB Output is correct
5 Correct 1193 ms 348 KB Output is correct
6 Incorrect 108 ms 344 KB Output isn't correct
7 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 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 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 1 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 348 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 10 ms 348 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 17 ms 460 KB Output is correct
22 Correct 44 ms 348 KB Output is correct
23 Correct 2 ms 348 KB Output is correct
24 Correct 79 ms 480 KB Output is correct
25 Correct 56 ms 448 KB Output is correct
26 Correct 129 ms 464 KB Output is correct
27 Correct 129 ms 348 KB Output is correct
28 Correct 76 ms 344 KB Output is correct
29 Correct 118 ms 348 KB Output is correct
30 Correct 127 ms 348 KB Output is correct
31 Correct 133 ms 348 KB Output is correct
32 Correct 132 ms 460 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 107 ms 464 KB Output is correct
35 Correct 142 ms 344 KB Output is correct
36 Correct 144 ms 596 KB Output is correct
37 Correct 112 ms 468 KB Output is correct
38 Correct 137 ms 596 KB Output is correct
39 Correct 137 ms 348 KB Output is correct
40 Correct 145 ms 600 KB Output is correct
41 Correct 106 ms 348 KB Output is correct
42 Correct 130 ms 348 KB Output is correct
43 Correct 143 ms 348 KB Output is correct
44 Correct 143 ms 468 KB Output is correct
45 Correct 156 ms 348 KB Output is correct
46 Correct 921 ms 488 KB Output is correct
47 Correct 1028 ms 496 KB Output is correct
48 Correct 1137 ms 348 KB Output is correct
49 Correct 1193 ms 348 KB Output is correct
50 Incorrect 108 ms 344 KB Output isn't correct
51 Halted 0 ms 0 KB -