oj.uz

Submission #77364

# Submission time Handle Problem Language Result Execution time Memory
77364 2018-09-26T13:04:55 Z tmwilliamlin168 Bulldozer (JOI17_bulldozer) C++14
60 / 100
 878 ms 94492 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 -