oj.uz

Submission #1071292

# Submission time Handle Problem Language Result Execution time Memory
1071292 2024-08-23T06:35:28 Z 정민찬(#11138) Cultivation (JOI17_cultivation) C++17
30 / 100
 2000 ms 600 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;

const ll inf = 2e18;

ll R, C;
ll N;

ll solve(vector<pll> p, ll H1, ll H2) {
    vector<pll> upd;
    for (ll i=0; i<p.size(); i++) {
        upd.push_back({max(1LL, p[i].first - H1), p[i].second});
        upd.push_back({p[i].first + H2 + 1, -p[i].second});
    }
    sort(upd.begin(), upd.end());
    if (upd[0].first != 1) return inf;
    vector<ll> cur;
    vector<array<ll,4>> save;
    for (ll i=0; i<upd.size(); i++) {
        if (upd[i].first > R) break;
        if (upd[i].second > 0) {
            cur.push_back(upd[i].second);
            sort(cur.begin(), cur.end());
        }
        else {
            bool flag = false;
            for (ll j=0; j<cur.size(); j++) {
                if (cur[j] == -upd[i].second) {
                    cur.erase(cur.begin() + j);
                    flag = true;
                    break;
                }
            }
            assert(flag);
        }
        if (i + 1 != upd.size() && upd[i].first == upd[i+1].first) continue;
        if (cur.empty()) {
            save.push_back({upd[i].first, inf, inf, inf});
            continue;
        }
        ll l = cur[0] - 1, r = C - cur.back();
        ll sum = l + r;
        for (ll j=0; j+1<cur.size(); j++) {
            sum = max(sum, cur[j+1] - cur[j] - 1);
        }
        save.push_back({upd[i].first, sum, l, r});
    }
    ll ans = inf;
    for (ll i=0; i<=0; i++) {
        ll l = save[i][2], r = save[i][3];
        ll sum = save[i][1];
        for (ll j=i+1; j<save.size(); j++) {
            if (save[j][0] > save[i][0] + R - 1) break;
            l = max(l, save[j][2]);
            r = max(r, save[j][3]);
            sum = max(sum, save[j][1]);
        }
        ans = min(ans, max(l+r, sum));
    }
    return ans;
}

int main() {
    ios_base :: sync_with_stdio(false); cin.tie(NULL);
    cin >> R >> C;
    cin >> N;
    vector<pll> p(N);
    for (ll i=0; i<N; i++) {
        cin >> p[i].first >> p[i].second;
    }
    sort(p.begin(), p.end());
    ll ans = inf;
    for (ll i=0; i<=R-1; i++) {
        for (ll j=0; j<=R-1; j++) {
            ans = min(ans, i + j + solve(p, i, j));
        }
    }
    cout << ans << '\n';
}

Compilation message

cultivation.cpp: In function 'll solve(std::vector<std::pair<long long int, long long int> >, ll, ll)':
cultivation.cpp:15:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (ll i=0; i<p.size(); i++) {
      |                  ~^~~~~~~~~
cultivation.cpp:23:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for (ll i=0; i<upd.size(); i++) {
      |                  ~^~~~~~~~~~~
cultivation.cpp:31:27: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |             for (ll j=0; j<cur.size(); j++) {
      |                          ~^~~~~~~~~~~
cultivation.cpp:40:19: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |         if (i + 1 != upd.size() && upd[i].first == upd[i+1].first) continue;
      |             ~~~~~~^~~~~~~~~~~~~
cultivation.cpp:47:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |         for (ll j=0; j+1<cur.size(); j++) {
      |                      ~~~^~~~~~~~~~~
cultivation.cpp:56:25: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::array<long long int, 4> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |         for (ll j=i+1; j<save.size(); j++) {
      |                        ~^~~~~~~~~~~~

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 1 ms 348 KB Output is correct
4 Correct 0 ms 388 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 600 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 360 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 388 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 600 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 360 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 15 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 11 ms 456 KB Output is correct
22 Correct 82 ms 348 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 285 ms 348 KB Output is correct
25 Correct 179 ms 456 KB Output is correct
26 Correct 793 ms 476 KB Output is correct
27 Correct 717 ms 472 KB Output is correct
28 Correct 311 ms 344 KB Output is correct
29 Correct 676 ms 344 KB Output is correct
30 Correct 824 ms 472 KB Output is correct
31 Correct 735 ms 600 KB Output is correct
32 Correct 741 ms 348 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 1 ms 348 KB Output is correct
4 Correct 0 ms 388 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 600 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 360 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 15 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 11 ms 456 KB Output is correct
22 Correct 82 ms 348 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 285 ms 348 KB Output is correct
25 Correct 179 ms 456 KB Output is correct
26 Correct 793 ms 476 KB Output is correct
27 Correct 717 ms 472 KB Output is correct
28 Correct 311 ms 344 KB Output is correct
29 Correct 676 ms 344 KB Output is correct
30 Correct 824 ms 472 KB Output is correct
31 Correct 735 ms 600 KB Output is correct
32 Correct 741 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 376 ms 344 KB Output is correct
35 Correct 670 ms 348 KB Output is correct
36 Correct 625 ms 348 KB Output is correct
37 Correct 460 ms 344 KB Output is correct
38 Correct 628 ms 348 KB Output is correct
39 Correct 647 ms 472 KB Output is correct
40 Correct 646 ms 476 KB Output is correct
41 Correct 427 ms 600 KB Output is correct
42 Correct 513 ms 348 KB Output is correct
43 Correct 619 ms 344 KB Output is correct
44 Correct 700 ms 596 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2067 ms 348 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2067 ms 348 KB Time limit exceeded
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 1 ms 348 KB Output is correct
4 Correct 0 ms 388 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 600 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 360 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 15 ms 344 KB Output is correct
19 Correct 4 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 11 ms 456 KB Output is correct
22 Correct 82 ms 348 KB Output is correct
23 Correct 9 ms 344 KB Output is correct
24 Correct 285 ms 348 KB Output is correct
25 Correct 179 ms 456 KB Output is correct
26 Correct 793 ms 476 KB Output is correct
27 Correct 717 ms 472 KB Output is correct
28 Correct 311 ms 344 KB Output is correct
29 Correct 676 ms 344 KB Output is correct
30 Correct 824 ms 472 KB Output is correct
31 Correct 735 ms 600 KB Output is correct
32 Correct 741 ms 348 KB Output is correct
33 Correct 3 ms 348 KB Output is correct
34 Correct 376 ms 344 KB Output is correct
35 Correct 670 ms 348 KB Output is correct
36 Correct 625 ms 348 KB Output is correct
37 Correct 460 ms 344 KB Output is correct
38 Correct 628 ms 348 KB Output is correct
39 Correct 647 ms 472 KB Output is correct
40 Correct 646 ms 476 KB Output is correct
41 Correct 427 ms 600 KB Output is correct
42 Correct 513 ms 348 KB Output is correct
43 Correct 619 ms 344 KB Output is correct
44 Correct 700 ms 596 KB Output is correct
45 Execution timed out 2067 ms 348 KB Time limit exceeded
46 Halted 0 ms 0 KB -