oj.uz

Submission #1071057

# Submission time Handle Problem Language Result Execution time Memory
1071057 2024-08-23T03:56:45 Z thinknoexit Cultivation (JOI17_cultivation) C++17
30 / 100
 1030 ms 262144 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 = 0;i < r;i++) up.insert(i), down.insert(i);
    // 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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 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 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 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 1 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 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 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 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 1 ms 344 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 9 ms 460 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 12 ms 348 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 7 ms 348 KB Output is correct
24 Correct 73 ms 456 KB Output is correct
25 Correct 58 ms 348 KB Output is correct
26 Correct 122 ms 348 KB Output is correct
27 Correct 121 ms 348 KB Output is correct
28 Correct 72 ms 452 KB Output is correct
29 Correct 109 ms 460 KB Output is correct
30 Correct 117 ms 344 KB Output is correct
31 Correct 120 ms 344 KB Output is correct
32 Correct 123 ms 460 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 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 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 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 1 ms 344 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 9 ms 460 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 12 ms 348 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 7 ms 348 KB Output is correct
24 Correct 73 ms 456 KB Output is correct
25 Correct 58 ms 348 KB Output is correct
26 Correct 122 ms 348 KB Output is correct
27 Correct 121 ms 348 KB Output is correct
28 Correct 72 ms 452 KB Output is correct
29 Correct 109 ms 460 KB Output is correct
30 Correct 117 ms 344 KB Output is correct
31 Correct 120 ms 344 KB Output is correct
32 Correct 123 ms 460 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 98 ms 348 KB Output is correct
35 Correct 128 ms 348 KB Output is correct
36 Correct 128 ms 348 KB Output is correct
37 Correct 103 ms 348 KB Output is correct
38 Correct 124 ms 344 KB Output is correct
39 Correct 125 ms 468 KB Output is correct
40 Correct 133 ms 472 KB Output is correct
41 Correct 102 ms 460 KB Output is correct
42 Correct 119 ms 344 KB Output is correct
43 Correct 131 ms 468 KB Output is correct
44 Correct 126 ms 472 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Runtime error 1030 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 1030 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 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 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 344 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 1 ms 344 KB Output is correct
17 Correct 2 ms 348 KB Output is correct
18 Correct 9 ms 460 KB Output is correct
19 Correct 5 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 12 ms 348 KB Output is correct
22 Correct 43 ms 348 KB Output is correct
23 Correct 7 ms 348 KB Output is correct
24 Correct 73 ms 456 KB Output is correct
25 Correct 58 ms 348 KB Output is correct
26 Correct 122 ms 348 KB Output is correct
27 Correct 121 ms 348 KB Output is correct
28 Correct 72 ms 452 KB Output is correct
29 Correct 109 ms 460 KB Output is correct
30 Correct 117 ms 344 KB Output is correct
31 Correct 120 ms 344 KB Output is correct
32 Correct 123 ms 460 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 98 ms 348 KB Output is correct
35 Correct 128 ms 348 KB Output is correct
36 Correct 128 ms 348 KB Output is correct
37 Correct 103 ms 348 KB Output is correct
38 Correct 124 ms 344 KB Output is correct
39 Correct 125 ms 468 KB Output is correct
40 Correct 133 ms 472 KB Output is correct
41 Correct 102 ms 460 KB Output is correct
42 Correct 119 ms 344 KB Output is correct
43 Correct 131 ms 468 KB Output is correct
44 Correct 126 ms 472 KB Output is correct
45 Runtime error 1030 ms 262144 KB Execution killed with signal 9
46 Halted 0 ms 0 KB -