답안 #122662

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
122662	2019-06-29T05:09:54 Z	윤교준(#3000)	Bulldozer (JOI17_bulldozer)	C++14	100 / 100	1216 ms	16380 KB

bulldozer

#include <bits/stdc++.h>
#define upmax(a,b) (a)=max((a),(b))
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
pll operator + (const pll &a, const pll &b) { return pll(a.first+b.first, a.second+b.second); }
pll operator - (const pll &a, const pll &b) { return pll(a.first-b.first, a.second-b.second); }
ll operator * (const pll &a, const pll &b) { return a.first*b.second - b.first*a.second; }
ll ccw(const pll &a, const pll &b, const pll &c) { return a*b + b*c + c*a; }

const int MAXN = 2005;

struct SEG {
	ll ds[MAXN*4], dl[MAXN*4], dr[MAXN*4], dp[MAXN*4];

	void upd(int i, int s, int e, int x, int r) {
		if(s == e) {
			ds[i] = r;
			dl[i] = dr[i] = dp[i] = max(0, r);
			return;
		}
		int m = (s+e) >> 1;
		if(x <= m) upd(i<<1, s, m, x, r);
		else upd(i<<1|1, m+1, e, x, r);
		ds[i] = ds[i<<1] + ds[i<<1|1];
		dl[i] = max(dl[i<<1], ds[i<<1] + dl[i<<1|1]);
		dr[i] = max(dr[i<<1|1], ds[i<<1|1] + dr[i<<1]);
		dp[i] = max({dp[i<<1], dp[i<<1|1], dr[i<<1] + dl[i<<1|1]});
	}
	ll get() { return dp[1]; }
} seg;

pii EV[MAXN*MAXN/2];
pair<pll, int> P[MAXN];
int A[MAXN], B[MAXN];

ll Ans;
int N, EVn;

ll cmpccw(const pii &a, const pii &b) {
	return ccw(P[a.first].first, P[a.second].first
		, P[b.second].first - P[b.first].first + P[a.first].first);
}
bool cmp(const pii &a, const pii &b) {
	ll t = cmpccw(a, b);
	return t ? 0 < t : a < b;
}

int main() {
	ios::sync_with_stdio(false);

	cin >> N;
	for(int i = 1; i <= N; i++)
		cin >> P[i].first.first >> P[i].first.second >> P[i].second;
	sort(P+1, P+N+1);

	for(int i = 1; i < N; i++) for(int j = i+1; j <= N; j++)
		EV[++EVn] = pii(i, j);
	sort(EV+1, EV+EVn+1, cmp);

	iota(B, B+N+1, 0);
	for(int i = 1; i <= N; i++) seg.upd(1, 1, N, i, A[i] = P[i].second);

	Ans = seg.get();
	for(int s = 1, e; s <= EVn; s = e) {
		for(e = s+1; e <= EVn && !cmpccw(EV[s], EV[e]); e++);
		for(int i = s, a, b; i < e; i++) {
			tie(a, b) = EV[i];
			seg.upd(1, 1, N, B[a], A[b]);
			seg.upd(1, 1, N, B[b], A[a]);
			swap(B[a], B[b]);
		}
		upmax(Ans, seg.get());
	}

	cout << Ans << endl;
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	504 KB	Output is correct
3	Correct	3 ms	504 KB	Output is correct
4	Correct	3 ms	504 KB	Output is correct
5	Correct	3 ms	504 KB	Output is correct
6	Correct	3 ms	380 KB	Output is correct
7	Correct	3 ms	380 KB	Output is correct
8	Correct	3 ms	504 KB	Output is correct
9	Correct	3 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	4 ms	504 KB	Output is correct
3	Correct	4 ms	504 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	4 ms	376 KB	Output is correct
6	Correct	3 ms	376 KB	Output is correct
7	Correct	4 ms	504 KB	Output is correct
8	Correct	4 ms	504 KB	Output is correct
9	Correct	3 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	4 ms	504 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	3 ms	376 KB	Output is correct
24	Correct	3 ms	504 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	380 KB	Output is correct
30	Correct	4 ms	376 KB	Output is correct
31	Correct	3 ms	376 KB	Output is correct
32	Correct	4 ms	376 KB	Output is correct

Subtask #3
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	4 ms	504 KB	Output is correct
3	Correct	4 ms	504 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	4 ms	376 KB	Output is correct
6	Correct	3 ms	376 KB	Output is correct
7	Correct	4 ms	504 KB	Output is correct
8	Correct	4 ms	504 KB	Output is correct
9	Correct	3 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	4 ms	504 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	3 ms	376 KB	Output is correct
24	Correct	3 ms	504 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	380 KB	Output is correct
30	Correct	4 ms	376 KB	Output is correct
31	Correct	3 ms	376 KB	Output is correct
32	Correct	4 ms	376 KB	Output is correct
33	Correct	1154 ms	16212 KB	Output is correct
34	Correct	1118 ms	16380 KB	Output is correct
35	Correct	1131 ms	16340 KB	Output is correct
36	Correct	1116 ms	16344 KB	Output is correct
37	Correct	1122 ms	16248 KB	Output is correct
38	Correct	1110 ms	16248 KB	Output is correct
39	Correct	1108 ms	16248 KB	Output is correct
40	Correct	1115 ms	16120 KB	Output is correct
41	Correct	1128 ms	16272 KB	Output is correct
42	Correct	1108 ms	16248 KB	Output is correct
43	Correct	1118 ms	16120 KB	Output is correct
44	Correct	1096 ms	16120 KB	Output is correct
45	Correct	1087 ms	16120 KB	Output is correct
46	Correct	1121 ms	16252 KB	Output is correct
47	Correct	1099 ms	16248 KB	Output is correct
48	Correct	1109 ms	16252 KB	Output is correct
49	Correct	1123 ms	16376 KB	Output is correct
50	Correct	1098 ms	16248 KB	Output is correct
51	Correct	1099 ms	16248 KB	Output is correct
52	Correct	1101 ms	16248 KB	Output is correct
53	Correct	1101 ms	16248 KB	Output is correct
54	Correct	1108 ms	16376 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	4 ms	504 KB	Output is correct
3	Correct	4 ms	504 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	4 ms	376 KB	Output is correct
6	Correct	3 ms	376 KB	Output is correct
7	Correct	4 ms	504 KB	Output is correct
8	Correct	4 ms	504 KB	Output is correct
9	Correct	3 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	380 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	4 ms	504 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	3 ms	376 KB	Output is correct
24	Correct	3 ms	504 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	376 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	3 ms	376 KB	Output is correct
29	Correct	3 ms	380 KB	Output is correct
30	Correct	4 ms	376 KB	Output is correct
31	Correct	3 ms	376 KB	Output is correct
32	Correct	4 ms	376 KB	Output is correct
33	Correct	1154 ms	16212 KB	Output is correct
34	Correct	1118 ms	16380 KB	Output is correct
35	Correct	1131 ms	16340 KB	Output is correct
36	Correct	1116 ms	16344 KB	Output is correct
37	Correct	1122 ms	16248 KB	Output is correct
38	Correct	1110 ms	16248 KB	Output is correct
39	Correct	1108 ms	16248 KB	Output is correct
40	Correct	1115 ms	16120 KB	Output is correct
41	Correct	1128 ms	16272 KB	Output is correct
42	Correct	1108 ms	16248 KB	Output is correct
43	Correct	1118 ms	16120 KB	Output is correct
44	Correct	1096 ms	16120 KB	Output is correct
45	Correct	1087 ms	16120 KB	Output is correct
46	Correct	1121 ms	16252 KB	Output is correct
47	Correct	1099 ms	16248 KB	Output is correct
48	Correct	1109 ms	16252 KB	Output is correct
49	Correct	1123 ms	16376 KB	Output is correct
50	Correct	1098 ms	16248 KB	Output is correct
51	Correct	1099 ms	16248 KB	Output is correct
52	Correct	1101 ms	16248 KB	Output is correct
53	Correct	1101 ms	16248 KB	Output is correct
54	Correct	1108 ms	16376 KB	Output is correct
55	Correct	1117 ms	16340 KB	Output is correct
56	Correct	1107 ms	16376 KB	Output is correct
57	Correct	1135 ms	16340 KB	Output is correct
58	Correct	1123 ms	16252 KB	Output is correct
59	Correct	1116 ms	16248 KB	Output is correct
60	Correct	1124 ms	16376 KB	Output is correct
61	Correct	1108 ms	16248 KB	Output is correct
62	Correct	1130 ms	16248 KB	Output is correct
63	Correct	1216 ms	16212 KB	Output is correct
64	Correct	1117 ms	16248 KB	Output is correct
65	Correct	1110 ms	16248 KB	Output is correct
66	Correct	1118 ms	16248 KB	Output is correct
67	Correct	1101 ms	16376 KB	Output is correct
68	Correct	1117 ms	16376 KB	Output is correct
69	Correct	1105 ms	16376 KB	Output is correct
70	Correct	1139 ms	16376 KB	Output is correct
71	Correct	1107 ms	16276 KB	Output is correct
72	Correct	1144 ms	16376 KB	Output is correct
73	Correct	1142 ms	16344 KB	Output is correct
74	Correct	1133 ms	16248 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	3 ms	504 KB	Output is correct
3	Correct	3 ms	504 KB	Output is correct
4	Correct	3 ms	504 KB	Output is correct
5	Correct	3 ms	504 KB	Output is correct
6	Correct	3 ms	380 KB	Output is correct
7	Correct	3 ms	380 KB	Output is correct
8	Correct	3 ms	504 KB	Output is correct
9	Correct	3 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	3 ms	376 KB	Output is correct
17	Correct	4 ms	504 KB	Output is correct
18	Correct	4 ms	504 KB	Output is correct
19	Correct	3 ms	376 KB	Output is correct
20	Correct	4 ms	376 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	4 ms	504 KB	Output is correct
23	Correct	4 ms	504 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	3 ms	376 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	376 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	380 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	4 ms	504 KB	Output is correct
37	Correct	3 ms	376 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	4 ms	504 KB	Output is correct
41	Correct	3 ms	376 KB	Output is correct
42	Correct	3 ms	376 KB	Output is correct
43	Correct	3 ms	376 KB	Output is correct
44	Correct	3 ms	380 KB	Output is correct
45	Correct	4 ms	376 KB	Output is correct
46	Correct	3 ms	376 KB	Output is correct
47	Correct	4 ms	376 KB	Output is correct
48	Correct	1154 ms	16212 KB	Output is correct
49	Correct	1118 ms	16380 KB	Output is correct
50	Correct	1131 ms	16340 KB	Output is correct
51	Correct	1116 ms	16344 KB	Output is correct
52	Correct	1122 ms	16248 KB	Output is correct
53	Correct	1110 ms	16248 KB	Output is correct
54	Correct	1108 ms	16248 KB	Output is correct
55	Correct	1115 ms	16120 KB	Output is correct
56	Correct	1128 ms	16272 KB	Output is correct
57	Correct	1108 ms	16248 KB	Output is correct
58	Correct	1118 ms	16120 KB	Output is correct
59	Correct	1096 ms	16120 KB	Output is correct
60	Correct	1087 ms	16120 KB	Output is correct
61	Correct	1121 ms	16252 KB	Output is correct
62	Correct	1099 ms	16248 KB	Output is correct
63	Correct	1109 ms	16252 KB	Output is correct
64	Correct	1123 ms	16376 KB	Output is correct
65	Correct	1098 ms	16248 KB	Output is correct
66	Correct	1099 ms	16248 KB	Output is correct
67	Correct	1101 ms	16248 KB	Output is correct
68	Correct	1101 ms	16248 KB	Output is correct
69	Correct	1108 ms	16376 KB	Output is correct
70	Correct	1117 ms	16340 KB	Output is correct
71	Correct	1107 ms	16376 KB	Output is correct
72	Correct	1135 ms	16340 KB	Output is correct
73	Correct	1123 ms	16252 KB	Output is correct
74	Correct	1116 ms	16248 KB	Output is correct
75	Correct	1124 ms	16376 KB	Output is correct
76	Correct	1108 ms	16248 KB	Output is correct
77	Correct	1130 ms	16248 KB	Output is correct
78	Correct	1216 ms	16212 KB	Output is correct
79	Correct	1117 ms	16248 KB	Output is correct
80	Correct	1110 ms	16248 KB	Output is correct
81	Correct	1118 ms	16248 KB	Output is correct
82	Correct	1101 ms	16376 KB	Output is correct
83	Correct	1117 ms	16376 KB	Output is correct
84	Correct	1105 ms	16376 KB	Output is correct
85	Correct	1139 ms	16376 KB	Output is correct
86	Correct	1107 ms	16276 KB	Output is correct
87	Correct	1144 ms	16376 KB	Output is correct
88	Correct	1142 ms	16344 KB	Output is correct
89	Correct	1133 ms	16248 KB	Output is correct
90	Correct	1137 ms	16348 KB	Output is correct
91	Correct	1124 ms	16376 KB	Output is correct
92	Correct	1125 ms	16248 KB	Output is correct
93	Correct	1117 ms	16248 KB	Output is correct
94	Correct	1107 ms	16248 KB	Output is correct
95	Correct	1107 ms	16236 KB	Output is correct
96	Correct	1117 ms	16252 KB	Output is correct
97	Correct	1117 ms	16248 KB	Output is correct
98	Correct	1111 ms	16376 KB	Output is correct
99	Correct	1105 ms	16120 KB	Output is correct
100	Correct	902 ms	16252 KB	Output is correct
101	Correct	904 ms	16248 KB	Output is correct
102	Correct	907 ms	16124 KB	Output is correct
103	Correct	894 ms	16248 KB	Output is correct
104	Correct	883 ms	16372 KB	Output is correct
105	Correct	958 ms	16248 KB	Output is correct
106	Correct	943 ms	16248 KB	Output is correct
107	Correct	923 ms	16336 KB	Output is correct
108	Correct	932 ms	16216 KB	Output is correct
109	Correct	971 ms	16248 KB	Output is correct
110	Correct	1010 ms	16376 KB	Output is correct
111	Correct	1004 ms	16376 KB	Output is correct
112	Correct	1026 ms	16252 KB	Output is correct
113	Correct	999 ms	16348 KB	Output is correct
114	Correct	1029 ms	16248 KB	Output is correct
115	Correct	1032 ms	16376 KB	Output is correct
116	Correct	1031 ms	16248 KB	Output is correct
117	Correct	1026 ms	16248 KB	Output is correct
118	Correct	1008 ms	16340 KB	Output is correct
119	Correct	1006 ms	16248 KB	Output is correct
120	Correct	2 ms	376 KB	Output is correct
121	Correct	2 ms	344 KB	Output is correct
122	Correct	1125 ms	16248 KB	Output is correct
123	Correct	1129 ms	16340 KB	Output is correct
124	Correct	1139 ms	16220 KB	Output is correct
125	Correct	1122 ms	16248 KB	Output is correct
126	Correct	1099 ms	16352 KB	Output is correct
127	Correct	1131 ms	16272 KB	Output is correct
128	Correct	1112 ms	16248 KB	Output is correct
129	Correct	1110 ms	16248 KB	Output is correct
130	Correct	1097 ms	16376 KB	Output is correct
131	Correct	1114 ms	16376 KB	Output is correct
132	Correct	1129 ms	16248 KB	Output is correct
133	Correct	1096 ms	16336 KB	Output is correct

답안 #122662

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 20.0 / 20.0

Subtask #3 35.0 / 35.0

Subtask #4 20.0 / 20.0

Subtask #5 20.0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
20.0 / 20.0

Subtask #3
35.0 / 35.0

Subtask #4
20.0 / 20.0

Subtask #5
20.0 / 20.0