답안 #77364 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
77364	2018-09-26T13:04:55 Z	tmwilliamlin168	Bulldozer (JOI17_bulldozer)	C++14	60 / 100	878 ms	94492 KB

bulldozer

#include <bits/stdc++.h>
using namespace std;

#define ll long long

const int mxN=2e3;
int n, p[mxN], l[mxN];
ll x[mxN], y[mxN], w[mxN], ans;
array<ll, 4> st[1<<12];
array<ll, 6> ss[mxN*(mxN-1)/2];

void upd(int l1, ll x, int i=1, int l2=0, int r2=n-1) {
	if(l2==r2) {
		st[i]={x, max(x, 0ll), max(x, 0ll), max(x, 0ll)};
		return;
	}
	int m2=(l2+r2)/2;
	if(l1<=m2)
		upd(l1, x, 2*i, l2, m2);
	else
		upd(l1, x, 2*i+1, m2+1, r2);
	st[i]={st[2*i][0]+st[2*i+1][0], max(st[2*i][1], st[2*i][0]+st[2*i+1][1]), max(st[2*i+1][2], st[2*i+1][0]+st[2*i][2]), max({st[2*i][3], st[2*i+1][3], st[2*i][2]+st[2*i+1][1]})};
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i=0; i<n; ++i) {
		cin >> x[i] >> y[i] >> w[i];
		p[i]=i;
	}
	for(int i=0, k=0; i<n; ++i)
		for(int j=0; j<n; ++j)
			if(i!=j&&(x[i]<x[j]||x[i]==x[j]&&y[i]>y[j]))
				ss[k++]={y[j]-y[i], x[j]-x[i], x[i]==x[j]?y[j]:-x[j], x[i]==x[j]?y[i]:-x[i], i, j};
	sort(p, p+n, [&](const int &a, const int b) {
		return x[a]==x[b]?y[a]<y[b]:x[a]<x[b];
	});
	for(int i=0; i<n; ++i) {
		upd(i, w[p[i]]);
		l[p[i]]=i;
	}
	sort(ss, ss+n*(n-1)/2, [&](const array<ll, 6> &a, const array<ll, 6> &b) {
		ll c=a[0]*b[1]-a[1]*b[0];
		return c?c<0:array<ll, 2>{a[2], a[3]}<array<ll, 2>{b[2], b[3]};
	});
	ans=st[1][3];
	for(int i=0; i<n*(n-1)/2; ++i) {
		int u=ss[i][4], v=ss[i][5];
		swap(l[u], l[v]);
		upd(l[u], w[u]);
		upd(l[v], w[v]);
		if(i>=n*(n-1)/2-1||ss[i][0]*ss[i+1][1]<ss[i][1]*ss[i+1][0])
			ans=max(st[1][3], ans);
	}
	cout << ans;
}

Compilation message

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:36:35: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(i!=j&&(x[i]<x[j]||x[i]==x[j]&&y[i]>y[j]))
                         ~~~~~~~~~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	640 KB	Output is correct
2	Correct	3 ms	640 KB	Output is correct
3	Correct	3 ms	640 KB	Output is correct
4	Correct	3 ms	640 KB	Output is correct
5	Correct	3 ms	640 KB	Output is correct
6	Correct	3 ms	640 KB	Output is correct
7	Correct	3 ms	640 KB	Output is correct
8	Correct	3 ms	640 KB	Output is correct
9	Correct	3 ms	640 KB	Output is correct
10	Correct	3 ms	640 KB	Output is correct
11	Correct	2 ms	316 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	640 KB	Output is correct
2	Correct	3 ms	640 KB	Output is correct
3	Correct	3 ms	640 KB	Output is correct
4	Correct	3 ms	640 KB	Output is correct
5	Correct	3 ms	640 KB	Output is correct
6	Correct	3 ms	640 KB	Output is correct
7	Correct	4 ms	640 KB	Output is correct
8	Correct	4 ms	640 KB	Output is correct
9	Correct	3 ms	640 KB	Output is correct
10	Correct	3 ms	640 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	640 KB	Output is correct
22	Correct	3 ms	640 KB	Output is correct
23	Correct	3 ms	640 KB	Output is correct
24	Correct	3 ms	612 KB	Output is correct
25	Correct	3 ms	640 KB	Output is correct
26	Correct	3 ms	640 KB	Output is correct
27	Correct	3 ms	640 KB	Output is correct
28	Correct	3 ms	640 KB	Output is correct
29	Correct	3 ms	640 KB	Output is correct
30	Correct	3 ms	640 KB	Output is correct
31	Correct	3 ms	640 KB	Output is correct
32	Correct	3 ms	640 KB	Output is correct

Subtask #3
35.0 / 35.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	640 KB	Output is correct
2	Correct	3 ms	640 KB	Output is correct
3	Correct	3 ms	640 KB	Output is correct
4	Correct	3 ms	640 KB	Output is correct
5	Correct	3 ms	640 KB	Output is correct
6	Correct	3 ms	640 KB	Output is correct
7	Correct	4 ms	640 KB	Output is correct
8	Correct	4 ms	640 KB	Output is correct
9	Correct	3 ms	640 KB	Output is correct
10	Correct	3 ms	640 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	640 KB	Output is correct
22	Correct	3 ms	640 KB	Output is correct
23	Correct	3 ms	640 KB	Output is correct
24	Correct	3 ms	612 KB	Output is correct
25	Correct	3 ms	640 KB	Output is correct
26	Correct	3 ms	640 KB	Output is correct
27	Correct	3 ms	640 KB	Output is correct
28	Correct	3 ms	640 KB	Output is correct
29	Correct	3 ms	640 KB	Output is correct
30	Correct	3 ms	640 KB	Output is correct
31	Correct	3 ms	640 KB	Output is correct
32	Correct	3 ms	640 KB	Output is correct
33	Correct	836 ms	94460 KB	Output is correct
34	Correct	838 ms	94456 KB	Output is correct
35	Correct	829 ms	94460 KB	Output is correct
36	Correct	838 ms	94460 KB	Output is correct
37	Correct	878 ms	94456 KB	Output is correct
38	Correct	820 ms	94452 KB	Output is correct
39	Correct	832 ms	94452 KB	Output is correct
40	Correct	840 ms	94452 KB	Output is correct
41	Correct	861 ms	94452 KB	Output is correct
42	Correct	860 ms	94452 KB	Output is correct
43	Correct	837 ms	94456 KB	Output is correct
44	Correct	841 ms	94456 KB	Output is correct
45	Correct	822 ms	94492 KB	Output is correct
46	Correct	834 ms	94464 KB	Output is correct
47	Correct	820 ms	94456 KB	Output is correct
48	Correct	825 ms	94456 KB	Output is correct
49	Correct	812 ms	94452 KB	Output is correct
50	Correct	834 ms	94456 KB	Output is correct
51	Correct	815 ms	94456 KB	Output is correct
52	Correct	825 ms	94456 KB	Output is correct
53	Correct	822 ms	94464 KB	Output is correct
54	Correct	818 ms	94456 KB	Output is correct

Subtask #4
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	640 KB	Output is correct
2	Correct	3 ms	640 KB	Output is correct
3	Correct	3 ms	640 KB	Output is correct
4	Correct	3 ms	640 KB	Output is correct
5	Correct	3 ms	640 KB	Output is correct
6	Correct	3 ms	640 KB	Output is correct
7	Correct	4 ms	640 KB	Output is correct
8	Correct	4 ms	640 KB	Output is correct
9	Correct	3 ms	640 KB	Output is correct
10	Correct	3 ms	640 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	2 ms	384 KB	Output is correct
20	Correct	2 ms	384 KB	Output is correct
21	Correct	3 ms	640 KB	Output is correct
22	Correct	3 ms	640 KB	Output is correct
23	Correct	3 ms	640 KB	Output is correct
24	Correct	3 ms	612 KB	Output is correct
25	Correct	3 ms	640 KB	Output is correct
26	Correct	3 ms	640 KB	Output is correct
27	Correct	3 ms	640 KB	Output is correct
28	Correct	3 ms	640 KB	Output is correct
29	Correct	3 ms	640 KB	Output is correct
30	Correct	3 ms	640 KB	Output is correct
31	Correct	3 ms	640 KB	Output is correct
32	Correct	3 ms	640 KB	Output is correct
33	Correct	836 ms	94460 KB	Output is correct
34	Correct	838 ms	94456 KB	Output is correct
35	Correct	829 ms	94460 KB	Output is correct
36	Correct	838 ms	94460 KB	Output is correct
37	Correct	878 ms	94456 KB	Output is correct
38	Correct	820 ms	94452 KB	Output is correct
39	Correct	832 ms	94452 KB	Output is correct
40	Correct	840 ms	94452 KB	Output is correct
41	Correct	861 ms	94452 KB	Output is correct
42	Correct	860 ms	94452 KB	Output is correct
43	Correct	837 ms	94456 KB	Output is correct
44	Correct	841 ms	94456 KB	Output is correct
45	Correct	822 ms	94492 KB	Output is correct
46	Correct	834 ms	94464 KB	Output is correct
47	Correct	820 ms	94456 KB	Output is correct
48	Correct	825 ms	94456 KB	Output is correct
49	Correct	812 ms	94452 KB	Output is correct
50	Correct	834 ms	94456 KB	Output is correct
51	Correct	815 ms	94456 KB	Output is correct
52	Correct	825 ms	94456 KB	Output is correct
53	Correct	822 ms	94464 KB	Output is correct
54	Correct	818 ms	94456 KB	Output is correct
55	Correct	829 ms	94452 KB	Output is correct
56	Correct	845 ms	94456 KB	Output is correct
57	Correct	822 ms	94328 KB	Output is correct
58	Correct	850 ms	94456 KB	Output is correct
59	Correct	833 ms	94460 KB	Output is correct
60	Correct	834 ms	94456 KB	Output is correct
61	Correct	827 ms	94460 KB	Output is correct
62	Correct	830 ms	94456 KB	Output is correct
63	Correct	858 ms	94456 KB	Output is correct
64	Correct	838 ms	94468 KB	Output is correct
65	Incorrect	854 ms	94456 KB	Output isn't correct
66	Halted	0 ms	0 KB	-

Subtask #5
0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	640 KB	Output is correct
2	Correct	3 ms	640 KB	Output is correct
3	Correct	3 ms	640 KB	Output is correct
4	Correct	3 ms	640 KB	Output is correct
5	Correct	3 ms	640 KB	Output is correct
6	Correct	3 ms	640 KB	Output is correct
7	Correct	3 ms	640 KB	Output is correct
8	Correct	3 ms	640 KB	Output is correct
9	Correct	3 ms	640 KB	Output is correct
10	Correct	3 ms	640 KB	Output is correct
11	Correct	2 ms	316 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	2 ms	384 KB	Output is correct
15	Correct	2 ms	384 KB	Output is correct
16	Correct	3 ms	640 KB	Output is correct
17	Correct	3 ms	640 KB	Output is correct
18	Correct	3 ms	640 KB	Output is correct
19	Correct	3 ms	640 KB	Output is correct
20	Correct	3 ms	640 KB	Output is correct
21	Correct	3 ms	640 KB	Output is correct
22	Correct	4 ms	640 KB	Output is correct
23	Correct	4 ms	640 KB	Output is correct
24	Correct	3 ms	640 KB	Output is correct
25	Correct	3 ms	640 KB	Output is correct
26	Correct	2 ms	384 KB	Output is correct
27	Correct	2 ms	384 KB	Output is correct
28	Correct	2 ms	384 KB	Output is correct
29	Correct	2 ms	384 KB	Output is correct
30	Correct	2 ms	384 KB	Output is correct
31	Correct	2 ms	384 KB	Output is correct
32	Correct	2 ms	384 KB	Output is correct
33	Correct	2 ms	384 KB	Output is correct
34	Correct	2 ms	384 KB	Output is correct
35	Correct	2 ms	384 KB	Output is correct
36	Correct	3 ms	640 KB	Output is correct
37	Correct	3 ms	640 KB	Output is correct
38	Correct	3 ms	640 KB	Output is correct
39	Correct	3 ms	612 KB	Output is correct
40	Correct	3 ms	640 KB	Output is correct
41	Correct	3 ms	640 KB	Output is correct
42	Correct	3 ms	640 KB	Output is correct
43	Correct	3 ms	640 KB	Output is correct
44	Correct	3 ms	640 KB	Output is correct
45	Correct	3 ms	640 KB	Output is correct
46	Correct	3 ms	640 KB	Output is correct
47	Correct	3 ms	640 KB	Output is correct
48	Correct	836 ms	94460 KB	Output is correct
49	Correct	838 ms	94456 KB	Output is correct
50	Correct	829 ms	94460 KB	Output is correct
51	Correct	838 ms	94460 KB	Output is correct
52	Correct	878 ms	94456 KB	Output is correct
53	Correct	820 ms	94452 KB	Output is correct
54	Correct	832 ms	94452 KB	Output is correct
55	Correct	840 ms	94452 KB	Output is correct
56	Correct	861 ms	94452 KB	Output is correct
57	Correct	860 ms	94452 KB	Output is correct
58	Correct	837 ms	94456 KB	Output is correct
59	Correct	841 ms	94456 KB	Output is correct
60	Correct	822 ms	94492 KB	Output is correct
61	Correct	834 ms	94464 KB	Output is correct
62	Correct	820 ms	94456 KB	Output is correct
63	Correct	825 ms	94456 KB	Output is correct
64	Correct	812 ms	94452 KB	Output is correct
65	Correct	834 ms	94456 KB	Output is correct
66	Correct	815 ms	94456 KB	Output is correct
67	Correct	825 ms	94456 KB	Output is correct
68	Correct	822 ms	94464 KB	Output is correct
69	Correct	818 ms	94456 KB	Output is correct
70	Correct	829 ms	94452 KB	Output is correct
71	Correct	845 ms	94456 KB	Output is correct
72	Correct	822 ms	94328 KB	Output is correct
73	Correct	850 ms	94456 KB	Output is correct
74	Correct	833 ms	94460 KB	Output is correct
75	Correct	834 ms	94456 KB	Output is correct
76	Correct	827 ms	94460 KB	Output is correct
77	Correct	830 ms	94456 KB	Output is correct
78	Correct	858 ms	94456 KB	Output is correct
79	Correct	838 ms	94468 KB	Output is correct
80	Incorrect	854 ms	94456 KB	Output isn't correct
81	Halted	0 ms	0 KB	-

답안 #77364

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 20.0 / 20.0

Subtask #3 35.0 / 35.0

Subtask #4 0 / 20.0

Subtask #5 0 / 20.0

Subtask #1
5.0 / 5.0

Subtask #2
20.0 / 20.0

Subtask #3
35.0 / 35.0

Subtask #4
0 / 20.0

Subtask #5
0 / 20.0