oj.uz

답안 #1071296

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1071296 2024-08-23T06:36:31 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({min(p[i].first + H2, R) + 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].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<save.size(); 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:30:27: 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]
   30 |             for (ll j=0; j<cur.size(); j++) {
      |                          ~^~~~~~~~~~~
cultivation.cpp:39:19: 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]
   39 |         if (i + 1 != upd.size() && upd[i].first == upd[i+1].first) continue;
      |             ~~~~~~^~~~~~~~~~~~~
cultivation.cpp:46:25: 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]
   46 |         for (ll j=0; j+1<cur.size(); j++) {
      |                      ~~~^~~~~~~~~~~
cultivation.cpp:52:19: 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]
   52 |     for (ll i=0; i<save.size(); i++) {
      |                  ~^~~~~~~~~~~~
cultivation.cpp:55:25: 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]
   55 |         for (ll j=i+1; j<save.size(); j++) {
      |                        ~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 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 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

# 결과 실행 시간 메모리 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 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 348 KB Output is correct
18 Correct 10 ms 464 KB Output is correct
19 Correct 4 ms 452 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 13 ms 464 KB Output is correct
22 Correct 94 ms 440 KB Output is correct
23 Correct 6 ms 344 KB Output is correct
24 Correct 337 ms 456 KB Output is correct
25 Correct 171 ms 344 KB Output is correct
26 Correct 798 ms 592 KB Output is correct
27 Correct 810 ms 476 KB Output is correct
28 Correct 307 ms 348 KB Output is correct
29 Correct 696 ms 472 KB Output is correct
30 Correct 845 ms 592 KB Output is correct
31 Correct 811 ms 348 KB Output is correct
32 Correct 846 ms 348 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 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 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 348 KB Output is correct
18 Correct 10 ms 464 KB Output is correct
19 Correct 4 ms 452 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 13 ms 464 KB Output is correct
22 Correct 94 ms 440 KB Output is correct
23 Correct 6 ms 344 KB Output is correct
24 Correct 337 ms 456 KB Output is correct
25 Correct 171 ms 344 KB Output is correct
26 Correct 798 ms 592 KB Output is correct
27 Correct 810 ms 476 KB Output is correct
28 Correct 307 ms 348 KB Output is correct
29 Correct 696 ms 472 KB Output is correct
30 Correct 845 ms 592 KB Output is correct
31 Correct 811 ms 348 KB Output is correct
32 Correct 846 ms 348 KB Output is correct
33 Correct 3 ms 344 KB Output is correct
34 Correct 430 ms 348 KB Output is correct
35 Correct 893 ms 472 KB Output is correct
36 Correct 728 ms 348 KB Output is correct
37 Correct 578 ms 344 KB Output is correct
38 Correct 838 ms 476 KB Output is correct
39 Correct 692 ms 476 KB Output is correct
40 Correct 766 ms 348 KB Output is correct
41 Correct 506 ms 348 KB Output is correct
42 Correct 581 ms 344 KB Output is correct
43 Correct 722 ms 600 KB Output is correct
44 Correct 837 ms 476 KB Output is correct

Subtask #4
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2093 ms 344 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2093 ms 344 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 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 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 348 KB Output is correct
18 Correct 10 ms 464 KB Output is correct
19 Correct 4 ms 452 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 13 ms 464 KB Output is correct
22 Correct 94 ms 440 KB Output is correct
23 Correct 6 ms 344 KB Output is correct
24 Correct 337 ms 456 KB Output is correct
25 Correct 171 ms 344 KB Output is correct
26 Correct 798 ms 592 KB Output is correct
27 Correct 810 ms 476 KB Output is correct
28 Correct 307 ms 348 KB Output is correct
29 Correct 696 ms 472 KB Output is correct
30 Correct 845 ms 592 KB Output is correct
31 Correct 811 ms 348 KB Output is correct
32 Correct 846 ms 348 KB Output is correct
33 Correct 3 ms 344 KB Output is correct
34 Correct 430 ms 348 KB Output is correct
35 Correct 893 ms 472 KB Output is correct
36 Correct 728 ms 348 KB Output is correct
37 Correct 578 ms 344 KB Output is correct
38 Correct 838 ms 476 KB Output is correct
39 Correct 692 ms 476 KB Output is correct
40 Correct 766 ms 348 KB Output is correct
41 Correct 506 ms 348 KB Output is correct
42 Correct 581 ms 344 KB Output is correct
43 Correct 722 ms 600 KB Output is correct
44 Correct 837 ms 476 KB Output is correct
45 Execution timed out 2093 ms 344 KB Time limit exceeded
46 Halted 0 ms 0 KB -