답안 #1071364

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1071364	2024-08-23T06:55:14 Z	정민찬(#11138)	Cultivation (JOI17_cultivation)	C++17	30 / 100	46 ms	2520 KB

cultivation

#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 H) {
	vector<pll> upd;
	ll j = 0;
	for (ll i=0; i<p.size(); i++) {
		while (j < p.size() && p[j].first + H <= p[i].first) {
			upd.push_back({p[j].first + H, -p[j].second});
			j ++;
		}
		upd.push_back(p[i]);
	}
	while (j < p.size()) {
		upd.push_back({p[j].first + H, -p[j].second});
		j ++;
	}
	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 {
			for (ll j=0; j<cur.size(); j++) {
				if (cur[j] == -upd[i].second) {
					cur.erase(cur.begin() + j);
					break;
				}
			}
		}
		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());
    vector<ll> cand, U, D;
    for (ll i=0; i<N; i++) {
    	U.push_back(p[i].first - 1);
    	D.push_back(R - p[i].first);
    	for (ll j=i+1; j<N; j++) {
    		cand.push_back(abs(p[i].first - p[j].first) + 1);
    		if (p[i].second == p[j].second)
    			cand.push_back(abs(p[i].first - p[j].first));
    	}
    }
    for (auto &u : U) {
    	for (auto &d : D) {
    		cand.push_back(u + d + 1);
    	}
    }
    sort(cand.begin(), cand.end());
    cand.erase(unique(cand.begin(), cand.end()), cand.end());
    ll ans = inf;
   	for (auto &H : cand) {
    	ans = min(ans, H - 1 + solve(p, H));
    }
    /*for (ll i=1; i<=2*R; i++) {
    	cout << i << ' ' << solve(p, i) << '\n';
    	ans = min(ans, i - 1 + solve(p, i));
    }*/
    cout << ans << '\n';
}

Compilation message

cultivation.cpp: In function 'll solve(std::vector<std::pair<long long int, long long int> >, ll)':
cultivation.cpp:16:16: 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]
   16 |  for (ll i=0; i<p.size(); i++) {
      |               ~^~~~~~~~~
cultivation.cpp:17:12: 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]
   17 |   while (j < p.size() && p[j].first + H <= p[i].first) {
      |          ~~^~~~~~~~~~
cultivation.cpp:23:11: 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 |  while (j < p.size()) {
      |         ~~^~~~~~~~~~
cultivation.cpp:29:16: 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]
   29 |  for (ll i=0; i<upd.size(); i++) {
      |               ~^~~~~~~~~~~
cultivation.cpp:35:18: 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]
   35 |    for (ll j=0; j<cur.size(); j++) {
      |                 ~^~~~~~~~~~~
cultivation.cpp:42:13: 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]
   42 |   if (i + 1 != upd.size() && upd[i].first == upd[i+1].first) continue;
      |       ~~~~~~^~~~~~~~~~~~~
cultivation.cpp:49:19: 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]
   49 |   for (ll j=0; j+1<cur.size(); j++) {
      |                ~~~^~~~~~~~~~~
cultivation.cpp:55:16: 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 i=0; i<save.size(); i++) {
      |               ~^~~~~~~~~~~~
cultivation.cpp:58:19: 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]
   58 |   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	344 KB	Output is correct
2	Correct	1 ms	344 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	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

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	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	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	9 ms	736 KB	Output is correct
23	Correct	1 ms	344 KB	Output is correct
24	Correct	19 ms	992 KB	Output is correct
25	Correct	8 ms	996 KB	Output is correct
26	Correct	42 ms	2520 KB	Output is correct
27	Correct	41 ms	2520 KB	Output is correct
28	Correct	17 ms	992 KB	Output is correct
29	Correct	39 ms	2516 KB	Output is correct
30	Correct	40 ms	2520 KB	Output is correct
31	Correct	41 ms	2520 KB	Output is correct
32	Correct	43 ms	2516 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	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	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	9 ms	736 KB	Output is correct
23	Correct	1 ms	344 KB	Output is correct
24	Correct	19 ms	992 KB	Output is correct
25	Correct	8 ms	996 KB	Output is correct
26	Correct	42 ms	2520 KB	Output is correct
27	Correct	41 ms	2520 KB	Output is correct
28	Correct	17 ms	992 KB	Output is correct
29	Correct	39 ms	2516 KB	Output is correct
30	Correct	40 ms	2520 KB	Output is correct
31	Correct	41 ms	2520 KB	Output is correct
32	Correct	43 ms	2516 KB	Output is correct
33	Correct	5 ms	2516 KB	Output is correct
34	Correct	21 ms	2516 KB	Output is correct
35	Correct	37 ms	2520 KB	Output is correct
36	Correct	39 ms	2520 KB	Output is correct
37	Correct	30 ms	2520 KB	Output is correct
38	Correct	45 ms	2520 KB	Output is correct
39	Correct	34 ms	2520 KB	Output is correct
40	Correct	46 ms	2520 KB	Output is correct
41	Correct	31 ms	2520 KB	Output is correct
42	Correct	29 ms	2516 KB	Output is correct
43	Correct	33 ms	2516 KB	Output is correct
44	Correct	39 ms	2520 KB	Output is correct

Subtask #4
0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	3 ms	348 KB	Output is correct
4	Correct	3 ms	348 KB	Output is correct
5	Correct	3 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	2 ms	344 KB	Output is correct
10	Incorrect	3 ms	392 KB	Output isn't correct
11	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	3 ms	348 KB	Output is correct
4	Correct	3 ms	348 KB	Output is correct
5	Correct	3 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	3 ms	344 KB	Output is correct
9	Correct	2 ms	344 KB	Output is correct
10	Incorrect	3 ms	392 KB	Output isn't correct
11	Halted	0 ms	0 KB	-

Subtask #6
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	344 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	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	0 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	9 ms	736 KB	Output is correct
23	Correct	1 ms	344 KB	Output is correct
24	Correct	19 ms	992 KB	Output is correct
25	Correct	8 ms	996 KB	Output is correct
26	Correct	42 ms	2520 KB	Output is correct
27	Correct	41 ms	2520 KB	Output is correct
28	Correct	17 ms	992 KB	Output is correct
29	Correct	39 ms	2516 KB	Output is correct
30	Correct	40 ms	2520 KB	Output is correct
31	Correct	41 ms	2520 KB	Output is correct
32	Correct	43 ms	2516 KB	Output is correct
33	Correct	5 ms	2516 KB	Output is correct
34	Correct	21 ms	2516 KB	Output is correct
35	Correct	37 ms	2520 KB	Output is correct
36	Correct	39 ms	2520 KB	Output is correct
37	Correct	30 ms	2520 KB	Output is correct
38	Correct	45 ms	2520 KB	Output is correct
39	Correct	34 ms	2520 KB	Output is correct
40	Correct	46 ms	2520 KB	Output is correct
41	Correct	31 ms	2520 KB	Output is correct
42	Correct	29 ms	2516 KB	Output is correct
43	Correct	33 ms	2516 KB	Output is correct
44	Correct	39 ms	2520 KB	Output is correct
45	Correct	1 ms	348 KB	Output is correct
46	Correct	2 ms	348 KB	Output is correct
47	Correct	3 ms	348 KB	Output is correct
48	Correct	3 ms	348 KB	Output is correct
49	Correct	3 ms	348 KB	Output is correct
50	Correct	1 ms	348 KB	Output is correct
51	Correct	1 ms	344 KB	Output is correct
52	Correct	3 ms	344 KB	Output is correct
53	Correct	2 ms	344 KB	Output is correct
54	Incorrect	3 ms	392 KB	Output isn't correct
55	Halted	0 ms	0 KB	-

답안 #1071364

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 15.0 / 15.0

Subtask #4 0 / 30.0

Subtask #5 0 / 20.0

Subtask #6 0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
15.0 / 15.0

Subtask #4
0 / 30.0

Subtask #5
0 / 20.0

Subtask #6
0 / 20.0