oj.uz

Submission #514287

# Submission time Handle Problem Language Result Execution time Memory
514287 2022-01-18T06:20:09 Z amunduzbaev Bulldozer (JOI17_bulldozer) C++14
60 / 100
 967 ms 66212 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long

const int N = 2005;
long double const eps = 1e-14;

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(pos[i], pos[j]); 
			tree.sett(pos[i], a[i][2]), tree.sett(pos[j], a[j][2]);
			k++;
		} 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

# Verdict Execution time Memory Grader output
1 Correct 2 ms 716 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 3 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 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory 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 716 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 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 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 716 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 3 ms 716 KB Output is correct
29 Correct 2 ms 716 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

# Verdict Execution time Memory 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 716 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 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 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 716 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 3 ms 716 KB Output is correct
29 Correct 2 ms 716 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 903 ms 66072 KB Output is correct
34 Correct 937 ms 66044 KB Output is correct
35 Correct 932 ms 66212 KB Output is correct
36 Correct 906 ms 66176 KB Output is correct
37 Correct 944 ms 66052 KB Output is correct
38 Correct 918 ms 66176 KB Output is correct
39 Correct 896 ms 66120 KB Output is correct
40 Correct 915 ms 66144 KB Output is correct
41 Correct 913 ms 66156 KB Output is correct
42 Correct 932 ms 66088 KB Output is correct
43 Correct 935 ms 66184 KB Output is correct
44 Correct 964 ms 66088 KB Output is correct
45 Correct 926 ms 66088 KB Output is correct
46 Correct 967 ms 66148 KB Output is correct
47 Correct 882 ms 66116 KB Output is correct
48 Correct 897 ms 66180 KB Output is correct
49 Correct 890 ms 66084 KB Output is correct
50 Correct 929 ms 66068 KB Output is correct
51 Correct 925 ms 66124 KB Output is correct
52 Correct 908 ms 66148 KB Output is correct
53 Correct 898 ms 66152 KB Output is correct
54 Correct 883 ms 66156 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory 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 716 KB Output is correct
7 Correct 2 ms 716 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 ms 332 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 0 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 0 ms 332 KB Output is correct
21 Correct 2 ms 716 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 3 ms 716 KB Output is correct
29 Correct 2 ms 716 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 903 ms 66072 KB Output is correct
34 Correct 937 ms 66044 KB Output is correct
35 Correct 932 ms 66212 KB Output is correct
36 Correct 906 ms 66176 KB Output is correct
37 Correct 944 ms 66052 KB Output is correct
38 Correct 918 ms 66176 KB Output is correct
39 Correct 896 ms 66120 KB Output is correct
40 Correct 915 ms 66144 KB Output is correct
41 Correct 913 ms 66156 KB Output is correct
42 Correct 932 ms 66088 KB Output is correct
43 Correct 935 ms 66184 KB Output is correct
44 Correct 964 ms 66088 KB Output is correct
45 Correct 926 ms 66088 KB Output is correct
46 Correct 967 ms 66148 KB Output is correct
47 Correct 882 ms 66116 KB Output is correct
48 Correct 897 ms 66180 KB Output is correct
49 Correct 890 ms 66084 KB Output is correct
50 Correct 929 ms 66068 KB Output is correct
51 Correct 925 ms 66124 KB Output is correct
52 Correct 908 ms 66148 KB Output is correct
53 Correct 898 ms 66152 KB Output is correct
54 Correct 883 ms 66156 KB Output is correct
55 Correct 883 ms 66144 KB Output is correct
56 Correct 892 ms 66136 KB Output is correct
57 Correct 946 ms 66156 KB Output is correct
58 Correct 905 ms 66164 KB Output is correct
59 Correct 890 ms 66180 KB Output is correct
60 Correct 904 ms 66180 KB Output is correct
61 Correct 888 ms 66112 KB Output is correct
62 Correct 896 ms 66104 KB Output is correct
63 Correct 918 ms 66184 KB Output is correct
64 Correct 897 ms 66176 KB Output is correct
65 Incorrect 907 ms 66136 KB Output isn't correct
66 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 716 KB Output is correct
2 Correct 2 ms 716 KB Output is correct
3 Correct 3 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 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 0 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 716 KB Output is correct
22 Correct 2 ms 716 KB Output is correct
23 Correct 2 ms 588 KB Output is correct
24 Correct 2 ms 716 KB Output is correct
25 Correct 2 ms 716 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 0 ms 332 KB Output is correct
28 Correct 0 ms 332 KB Output is correct
29 Correct 0 ms 332 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 0 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 2 ms 716 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 3 ms 716 KB Output is correct
44 Correct 2 ms 716 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 903 ms 66072 KB Output is correct
49 Correct 937 ms 66044 KB Output is correct
50 Correct 932 ms 66212 KB Output is correct
51 Correct 906 ms 66176 KB Output is correct
52 Correct 944 ms 66052 KB Output is correct
53 Correct 918 ms 66176 KB Output is correct
54 Correct 896 ms 66120 KB Output is correct
55 Correct 915 ms 66144 KB Output is correct
56 Correct 913 ms 66156 KB Output is correct
57 Correct 932 ms 66088 KB Output is correct
58 Correct 935 ms 66184 KB Output is correct
59 Correct 964 ms 66088 KB Output is correct
60 Correct 926 ms 66088 KB Output is correct
61 Correct 967 ms 66148 KB Output is correct
62 Correct 882 ms 66116 KB Output is correct
63 Correct 897 ms 66180 KB Output is correct
64 Correct 890 ms 66084 KB Output is correct
65 Correct 929 ms 66068 KB Output is correct
66 Correct 925 ms 66124 KB Output is correct
67 Correct 908 ms 66148 KB Output is correct
68 Correct 898 ms 66152 KB Output is correct
69 Correct 883 ms 66156 KB Output is correct
70 Correct 883 ms 66144 KB Output is correct
71 Correct 892 ms 66136 KB Output is correct
72 Correct 946 ms 66156 KB Output is correct
73 Correct 905 ms 66164 KB Output is correct
74 Correct 890 ms 66180 KB Output is correct
75 Correct 904 ms 66180 KB Output is correct
76 Correct 888 ms 66112 KB Output is correct
77 Correct 896 ms 66104 KB Output is correct
78 Correct 918 ms 66184 KB Output is correct
79 Correct 897 ms 66176 KB Output is correct
80 Incorrect 907 ms 66136 KB Output isn't correct
81 Halted 0 ms 0 KB -