oj.uz

답안 #801604

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
801604 2023-08-02T06:51:49 Z GEN 이지후(#10129) Cultivation (JOI17_cultivation) C++17
80 / 100
 2000 ms 20152 KB 
#include <bits/stdc++.h>
using namespace std;
using lint = long long;
using pi = array<lint, 2>;
#define sz(v) ((int)(v).size())
#define all(v) (v).begin(), (v).end()

lint sumFixed(lint r, lint c, lint g, vector<pi> a) {
	vector<array<lint, 3>> event;
	for (auto &[x, y] : a) {
		event.push_back({x, y, +1});
		event.push_back({x + 1 + g, y, -1});
	}
	event.push_back({0, -1, 0});
	event.push_back({r + g, -1, 0});
	sort(all(event));
	multiset<lint> s;
	vector<array<lint, 5>> chop;
	vector<lint> crd;
	for (int i = 0; i < sz(event);) {
		int j = i;
		while (j < sz(event) && event[i][0] == event[j][0]) {
			if (event[j][2] == +1)
				s.insert(event[j][1]);
			else if (event[j][2] == -1)
				s.erase(s.find(event[j][1]));
			j++;
		}
		if (j == sz(event))
			break;
		lint lmax = 0, rmax = 0, lrmax = 0;
		if (sz(s) == 0) {
			lmax = 1e18;
			rmax = 1e18;
		} else {
			lmax = max(lmax, *s.begin());
			rmax = max(rmax, c - 1 - *s.rbegin());
			{
				auto it = s.begin();
				while (next(it) != s.end()) {
					lrmax = max(lrmax, *next(it) - *it - 1);
					it++;
				}
			}
		}
		chop.push_back({event[i][0], event[j][0], lmax, rmax, lrmax});
		crd.push_back(min(g, event[i][0]));
		crd.push_back(max(0ll, event[j][0] - r));
		i = j;
	}
	sort(all(crd));
	crd.resize(unique(all(crd)) - crd.begin());
	int k = 0;
	priority_queue<pi> pq1, pq2, pq3;
	lint ans = 1e18;
	for (auto &x : crd) {
		while (k < sz(chop) && chop[k][0] < x + r) {
			pq1.push({chop[k][2], chop[k][1]});
			pq2.push({chop[k][3], chop[k][1]});
			pq3.push({chop[k][4], chop[k][1]});
			k++;
		}
		while (sz(pq1) && pq1.top()[1] <= x)
			pq1.pop();
		while (sz(pq2) && pq2.top()[1] <= x)
			pq2.pop();
		while (sz(pq3) && pq3.top()[1] <= x)
			pq3.pop();
		ans = min(ans, max(pq1.top()[0] + pq2.top()[0], pq3.top()[0]));
	}
	return ans;
}

map<pi, lint> mp;
lint solve(lint r, lint c, lint dl, lint dr, vector<pi> a) {
	if (mp.count({dl, dr}))
		return mp[pi{dl, dr}];
	vector<array<lint, 3>> event;
	for (auto &[x, y] : a) {
		int l = max(0ll, x - dl);
		int e = min(r * 1ll, x + 1 + dr);
		event.push_back({l, y, +1});
		event.push_back({e, y, -1});
	}
	sort(all(event));
	if (event[0][0] != 0 || event.back()[0] != r)
		return mp[pi{dl, dr}] = 1e18;
	lint lmax = 0, rmax = 0, lrmax = 0;
	multiset<lint> s;
	for (int i = 0; i < sz(event);) {
		int j = i;
		while (j < sz(event) && event[i][0] == event[j][0]) {
			if (event[j][2] == +1)
				s.insert(event[j][1]);
			else
				s.erase(s.find(event[j][1]));
			j++;
		}
		if (j == sz(event))
			break;
		if (sz(s) == 0)
			return mp[pi{dl, dr}] = 1e18;
		lmax = max(lmax, *s.begin());
		rmax = max(rmax, c - 1 - *s.rbegin());
		{
			auto it = s.begin();
			while (next(it) != s.end()) {
				lrmax = max(lrmax, *next(it) - *it - 1);
				it++;
			}
		}
		i = j;
	}
	return mp[pi{dl, dr}] = max(lmax + rmax, lrmax);
}

// n^4

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n, r, c;
	cin >> r >> c >> n;
	vector<pi> a(n);
	for (auto &[x, y] : a)
		cin >> x >> y, x--, y--;
	sort(all(a));
	lint ans = 1e18;
	vector<lint> gaps = {0};
	for (int i = 0; i < n; i++) {
		for (int j = i + 1; j < n; j++) {
			if (a[j][0] > a[i][0])
				gaps.push_back(a[j][0] - a[i][0] - 1);
		}
	}
	sort(all(gaps));
	gaps.resize(unique(all(gaps)) - gaps.begin());
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			ans = min(ans, a[i][0] + r - 1 - a[j][0] + solve(r, c, a[i][0], r - 1 - a[j][0], a));
		}
	}
	for (auto &dy : gaps) {
		ans = min(ans, sumFixed(r, c, dy, a) + dy);
	}
	cout << ans << endl;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 18 ms 648 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 18 ms 404 KB Output is correct
22 Correct 80 ms 1420 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 152 ms 596 KB Output is correct
25 Correct 106 ms 516 KB Output is correct
26 Correct 245 ms 856 KB Output is correct
27 Correct 243 ms 984 KB Output is correct
28 Correct 133 ms 596 KB Output is correct
29 Correct 222 ms 920 KB Output is correct
30 Correct 248 ms 956 KB Output is correct
31 Correct 263 ms 856 KB Output is correct
32 Correct 254 ms 984 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 18 ms 648 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 18 ms 404 KB Output is correct
22 Correct 80 ms 1420 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 152 ms 596 KB Output is correct
25 Correct 106 ms 516 KB Output is correct
26 Correct 245 ms 856 KB Output is correct
27 Correct 243 ms 984 KB Output is correct
28 Correct 133 ms 596 KB Output is correct
29 Correct 222 ms 920 KB Output is correct
30 Correct 248 ms 956 KB Output is correct
31 Correct 263 ms 856 KB Output is correct
32 Correct 254 ms 984 KB Output is correct
33 Correct 13 ms 644 KB Output is correct
34 Correct 189 ms 984 KB Output is correct
35 Correct 260 ms 856 KB Output is correct
36 Correct 246 ms 984 KB Output is correct
37 Correct 195 ms 984 KB Output is correct
38 Correct 248 ms 984 KB Output is correct
39 Correct 238 ms 984 KB Output is correct
40 Correct 239 ms 984 KB Output is correct
41 Correct 62 ms 728 KB Output is correct
42 Correct 161 ms 984 KB Output is correct
43 Correct 223 ms 856 KB Output is correct
44 Correct 268 ms 984 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 7 ms 340 KB Output is correct
3 Correct 8 ms 352 KB Output is correct
4 Correct 8 ms 336 KB Output is correct
5 Correct 8 ms 340 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 8 ms 348 KB Output is correct
9 Correct 5 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 8 ms 344 KB Output is correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 8 ms 384 KB Output is correct
17 Correct 9 ms 340 KB Output is correct
18 Correct 6 ms 340 KB Output is correct
19 Correct 9 ms 340 KB Output is correct
20 Correct 10 ms 384 KB Output is correct

Subtask #5
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 340 KB Output is correct
2 Correct 7 ms 340 KB Output is correct
3 Correct 8 ms 352 KB Output is correct
4 Correct 8 ms 336 KB Output is correct
5 Correct 8 ms 340 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 8 ms 348 KB Output is correct
9 Correct 5 ms 340 KB Output is correct
10 Correct 8 ms 340 KB Output is correct
11 Correct 8 ms 344 KB Output is correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 2 ms 340 KB Output is correct
14 Correct 4 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 8 ms 384 KB Output is correct
17 Correct 9 ms 340 KB Output is correct
18 Correct 6 ms 340 KB Output is correct
19 Correct 9 ms 340 KB Output is correct
20 Correct 10 ms 384 KB Output is correct
21 Correct 901 ms 11564 KB Output is correct
22 Correct 1135 ms 3376 KB Output is correct
23 Correct 1209 ms 3960 KB Output is correct
24 Correct 1152 ms 4812 KB Output is correct
25 Correct 1178 ms 3372 KB Output is correct
26 Correct 365 ms 688 KB Output is correct
27 Correct 1103 ms 20152 KB Output is correct
28 Correct 1179 ms 7156 KB Output is correct
29 Correct 1145 ms 2324 KB Output is correct
30 Correct 1152 ms 11976 KB Output is correct
31 Correct 1192 ms 7280 KB Output is correct
32 Correct 1093 ms 7712 KB Output is correct
33 Correct 1153 ms 1060 KB Output is correct
34 Correct 1174 ms 2700 KB Output is correct
35 Correct 1171 ms 9680 KB Output is correct
36 Correct 1249 ms 16632 KB Output is correct

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 18 ms 648 KB Output is correct
19 Correct 3 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 18 ms 404 KB Output is correct
22 Correct 80 ms 1420 KB Output is correct
23 Correct 3 ms 340 KB Output is correct
24 Correct 152 ms 596 KB Output is correct
25 Correct 106 ms 516 KB Output is correct
26 Correct 245 ms 856 KB Output is correct
27 Correct 243 ms 984 KB Output is correct
28 Correct 133 ms 596 KB Output is correct
29 Correct 222 ms 920 KB Output is correct
30 Correct 248 ms 956 KB Output is correct
31 Correct 263 ms 856 KB Output is correct
32 Correct 254 ms 984 KB Output is correct
33 Correct 13 ms 644 KB Output is correct
34 Correct 189 ms 984 KB Output is correct
35 Correct 260 ms 856 KB Output is correct
36 Correct 246 ms 984 KB Output is correct
37 Correct 195 ms 984 KB Output is correct
38 Correct 248 ms 984 KB Output is correct
39 Correct 238 ms 984 KB Output is correct
40 Correct 239 ms 984 KB Output is correct
41 Correct 62 ms 728 KB Output is correct
42 Correct 161 ms 984 KB Output is correct
43 Correct 223 ms 856 KB Output is correct
44 Correct 268 ms 984 KB Output is correct
45 Correct 3 ms 340 KB Output is correct
46 Correct 7 ms 340 KB Output is correct
47 Correct 8 ms 352 KB Output is correct
48 Correct 8 ms 336 KB Output is correct
49 Correct 8 ms 340 KB Output is correct
50 Correct 6 ms 340 KB Output is correct
51 Correct 2 ms 340 KB Output is correct
52 Correct 8 ms 348 KB Output is correct
53 Correct 5 ms 340 KB Output is correct
54 Correct 8 ms 340 KB Output is correct
55 Correct 8 ms 344 KB Output is correct
56 Correct 8 ms 384 KB Output is correct
57 Correct 2 ms 340 KB Output is correct
58 Correct 4 ms 340 KB Output is correct
59 Correct 4 ms 340 KB Output is correct
60 Correct 8 ms 384 KB Output is correct
61 Correct 9 ms 340 KB Output is correct
62 Correct 6 ms 340 KB Output is correct
63 Correct 9 ms 340 KB Output is correct
64 Correct 10 ms 384 KB Output is correct
65 Correct 901 ms 11564 KB Output is correct
66 Correct 1135 ms 3376 KB Output is correct
67 Correct 1209 ms 3960 KB Output is correct
68 Correct 1152 ms 4812 KB Output is correct
69 Correct 1178 ms 3372 KB Output is correct
70 Correct 365 ms 688 KB Output is correct
71 Correct 1103 ms 20152 KB Output is correct
72 Correct 1179 ms 7156 KB Output is correct
73 Correct 1145 ms 2324 KB Output is correct
74 Correct 1152 ms 11976 KB Output is correct
75 Correct 1192 ms 7280 KB Output is correct
76 Correct 1093 ms 7712 KB Output is correct
77 Correct 1153 ms 1060 KB Output is correct
78 Correct 1174 ms 2700 KB Output is correct
79 Correct 1171 ms 9680 KB Output is correct
80 Correct 1249 ms 16632 KB Output is correct
81 Execution timed out 2059 ms 940 KB Time limit exceeded
82 Halted 0 ms 0 KB -