oj.uz

답안 #514280

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
514280 2022-01-18T06:11:09 Z amunduzbaev Bulldozer (JOI17_bulldozer) C++14
60 / 100
 965 ms 66304 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long

const int N = 2005;
long double const eps = 1e-18;

struct ST{
	ar<int, 4> tree[N * 4];
	void merge(ar<int, 4>& x, ar<int, 4>& a, ar<int, 4>& b){
		x[0] = max({a[0], b[0], a[2] + b[1]});
		x[1] = max({a[1], a[3] + b[1]});
		x[2] = max({b[2], b[3] + a[2]});
		x[3] = a[3] + b[3];
	}
	
	void sett(int i, int v, int lx = 0, int rx = N, int x = 1){
		if(lx == rx){ 
			tree[x] = {max(v, 0ll), max(v, 0ll), max(v, 0ll), v}; return;
		} int m = (lx + rx) >> 1;
		if(i <= m) sett(i, v, lx, m, x<<1);
		else sett(i, v, m+1, rx, x<<1|1);
		merge(tree[x], tree[x<<1], tree[x<<1|1]);
	}
}tree;

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int n; cin>>n;
	vector<ar<int, 3>> a(n);
	for(int i=0;i<n;i++){
		cin>>a[i][0]>>a[i][1]>>a[i][2];
	} sort(a.begin(), a.end());
	
	vector<pair<long double, pair<int, int>>> tt;
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			if(a[i][0] == a[j][0]) continue;
			double slop = (a[j][1] - a[i][1]) * 1. / (a[i][0] - a[j][0]);
			tt.push_back({slop, {i, j}});
		}
	}
	
	vector<long double> b(n);
	vector<int> p(n); iota(p.begin(), p.end(), 0);
	for(int i=0;i<n;i++){
		b[i] = a[i][1] * 1. - (a[i][0] * -2e9);
	}
	
	sort(p.begin(), p.end(), [&](int i, int j){
		return (eps < b[j] - b[i]);
	});
	
	vector<int> pos(n);
	for(int i=0;i<n;i++) pos[p[i]] = i, tree.sett(i, a[p[i]][2]);

	int res = tree.tree[1][0];
	sort(tt.begin(), tt.end());
	for(int l=0;l<(int)tt.size();){
		int k = l;
		while(k < (int)tt.size() && tt[k].first == tt[l].first){
			auto [i, j] = tt[k].second;
			swap(p[pos[i]], p[pos[j]]);
			swap(pos[i], pos[j]); k++;
			tree.sett(pos[i], a[i][2]), tree.sett(pos[j], a[j][2]);
		} l = k;
		
		res = max(res, tree.tree[1][0]);
	}
	
	cout<<res<<"\n";
}

Compilation message

bulldozer.cpp: In function 'int main()':
bulldozer.cpp:65:9: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   65 |    auto [i, j] = tt[k].second;
      |         ^

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 2 ms 716 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 716 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 2 ms 716 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 316 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 700 KB Output is correct
22 Correct 2 ms 716 KB Output is correct
23 Correct 2 ms 716 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 716 KB Output is correct
26 Correct 2 ms 716 KB Output is correct
27 Correct 2 ms 716 KB Output is correct
28 Correct 2 ms 716 KB Output is correct
29 Correct 2 ms 704 KB Output is correct
30 Correct 2 ms 716 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 2 ms 716 KB Output is correct

Subtask #3
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 716 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 2 ms 716 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 316 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 700 KB Output is correct
22 Correct 2 ms 716 KB Output is correct
23 Correct 2 ms 716 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 716 KB Output is correct
26 Correct 2 ms 716 KB Output is correct
27 Correct 2 ms 716 KB Output is correct
28 Correct 2 ms 716 KB Output is correct
29 Correct 2 ms 704 KB Output is correct
30 Correct 2 ms 716 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 2 ms 716 KB Output is correct
33 Correct 899 ms 66184 KB Output is correct
34 Correct 905 ms 66200 KB Output is correct
35 Correct 932 ms 66164 KB Output is correct
36 Correct 886 ms 66148 KB Output is correct
37 Correct 899 ms 66304 KB Output is correct
38 Correct 965 ms 66256 KB Output is correct
39 Correct 888 ms 66180 KB Output is correct
40 Correct 889 ms 66232 KB Output is correct
41 Correct 880 ms 66148 KB Output is correct
42 Correct 879 ms 66192 KB Output is correct
43 Correct 929 ms 66180 KB Output is correct
44 Correct 928 ms 66208 KB Output is correct
45 Correct 878 ms 66224 KB Output is correct
46 Correct 889 ms 66136 KB Output is correct
47 Correct 899 ms 66176 KB Output is correct
48 Correct 878 ms 66256 KB Output is correct
49 Correct 898 ms 66184 KB Output is correct
50 Correct 888 ms 66192 KB Output is correct
51 Correct 901 ms 66236 KB Output is correct
52 Correct 893 ms 66144 KB Output is correct
53 Correct 877 ms 66172 KB Output is correct
54 Correct 894 ms 66232 KB Output is correct

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 716 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 2 ms 716 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 704 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 708 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 316 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 316 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 700 KB Output is correct
22 Correct 2 ms 716 KB Output is correct
23 Correct 2 ms 716 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 716 KB Output is correct
26 Correct 2 ms 716 KB Output is correct
27 Correct 2 ms 716 KB Output is correct
28 Correct 2 ms 716 KB Output is correct
29 Correct 2 ms 704 KB Output is correct
30 Correct 2 ms 716 KB Output is correct
31 Correct 2 ms 716 KB Output is correct
32 Correct 2 ms 716 KB Output is correct
33 Correct 899 ms 66184 KB Output is correct
34 Correct 905 ms 66200 KB Output is correct
35 Correct 932 ms 66164 KB Output is correct
36 Correct 886 ms 66148 KB Output is correct
37 Correct 899 ms 66304 KB Output is correct
38 Correct 965 ms 66256 KB Output is correct
39 Correct 888 ms 66180 KB Output is correct
40 Correct 889 ms 66232 KB Output is correct
41 Correct 880 ms 66148 KB Output is correct
42 Correct 879 ms 66192 KB Output is correct
43 Correct 929 ms 66180 KB Output is correct
44 Correct 928 ms 66208 KB Output is correct
45 Correct 878 ms 66224 KB Output is correct
46 Correct 889 ms 66136 KB Output is correct
47 Correct 899 ms 66176 KB Output is correct
48 Correct 878 ms 66256 KB Output is correct
49 Correct 898 ms 66184 KB Output is correct
50 Correct 888 ms 66192 KB Output is correct
51 Correct 901 ms 66236 KB Output is correct
52 Correct 893 ms 66144 KB Output is correct
53 Correct 877 ms 66172 KB Output is correct
54 Correct 894 ms 66232 KB Output is correct
55 Correct 913 ms 66204 KB Output is correct
56 Correct 904 ms 66136 KB Output is correct
57 Correct 900 ms 66148 KB Output is correct
58 Correct 898 ms 66196 KB Output is correct
59 Correct 920 ms 66120 KB Output is correct
60 Correct 917 ms 66180 KB Output is correct
61 Correct 882 ms 66168 KB Output is correct
62 Correct 888 ms 66204 KB Output is correct
63 Correct 906 ms 66104 KB Output is correct
64 Correct 886 ms 66180 KB Output is correct
65 Incorrect 902 ms 66160 KB Output isn't correct
66 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 684 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 2 ms 716 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 716 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 324 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 2 ms 716 KB Output is correct
17 Correct 2 ms 716 KB Output is correct
18 Correct 2 ms 716 KB Output is correct
19 Correct 2 ms 716 KB Output is correct
20 Correct 2 ms 716 KB Output is correct
21 Correct 2 ms 704 KB Output is correct
22 Correct 2 ms 716 KB Output is correct
23 Correct 2 ms 716 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 708 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 316 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 0 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 1 ms 316 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 2 ms 700 KB Output is correct
37 Correct 2 ms 716 KB Output is correct
38 Correct 2 ms 716 KB Output is correct
39 Correct 2 ms 716 KB Output is correct
40 Correct 2 ms 716 KB Output is correct
41 Correct 2 ms 716 KB Output is correct
42 Correct 2 ms 716 KB Output is correct
43 Correct 2 ms 716 KB Output is correct
44 Correct 2 ms 704 KB Output is correct
45 Correct 2 ms 716 KB Output is correct
46 Correct 2 ms 716 KB Output is correct
47 Correct 2 ms 716 KB Output is correct
48 Correct 899 ms 66184 KB Output is correct
49 Correct 905 ms 66200 KB Output is correct
50 Correct 932 ms 66164 KB Output is correct
51 Correct 886 ms 66148 KB Output is correct
52 Correct 899 ms 66304 KB Output is correct
53 Correct 965 ms 66256 KB Output is correct
54 Correct 888 ms 66180 KB Output is correct
55 Correct 889 ms 66232 KB Output is correct
56 Correct 880 ms 66148 KB Output is correct
57 Correct 879 ms 66192 KB Output is correct
58 Correct 929 ms 66180 KB Output is correct
59 Correct 928 ms 66208 KB Output is correct
60 Correct 878 ms 66224 KB Output is correct
61 Correct 889 ms 66136 KB Output is correct
62 Correct 899 ms 66176 KB Output is correct
63 Correct 878 ms 66256 KB Output is correct
64 Correct 898 ms 66184 KB Output is correct
65 Correct 888 ms 66192 KB Output is correct
66 Correct 901 ms 66236 KB Output is correct
67 Correct 893 ms 66144 KB Output is correct
68 Correct 877 ms 66172 KB Output is correct
69 Correct 894 ms 66232 KB Output is correct
70 Correct 913 ms 66204 KB Output is correct
71 Correct 904 ms 66136 KB Output is correct
72 Correct 900 ms 66148 KB Output is correct
73 Correct 898 ms 66196 KB Output is correct
74 Correct 920 ms 66120 KB Output is correct
75 Correct 917 ms 66180 KB Output is correct
76 Correct 882 ms 66168 KB Output is correct
77 Correct 888 ms 66204 KB Output is correct
78 Correct 906 ms 66104 KB Output is correct
79 Correct 886 ms 66180 KB Output is correct
80 Incorrect 902 ms 66160 KB Output isn't correct
81 Halted 0 ms 0 KB -