oj.uz

답안 #511267

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
511267 2022-01-15T13:17:41 Z fatemetmhr Construction of Highway (JOI18_construction) C++17
100 / 100
 406 ms 48396 KB 
//  ~Be name khoda~  //

#include<bits/stdc++.h>

using namespace std;

typedef long long ll;

#define pb       push_back
#define mp       make_pair
#define all(x)   x.begin(), x.end()
#define fi       first
#define se       second
#define cl       clear
#define endll    '\n'

const int maxn  =  1e6   + 10;
const int maxn5 =  1e5   + 10;
const int maxnt =  1.2e6 + 10;
const int maxn3 =  1e3   + 10;
const int mod   =  1e9   +  7;
const ll  inf   =  2e18;

int ind = 1;
set <pair<int, int>> av[maxn5];
vector <int> have, liv, req, adj[maxn5];
ll fen[maxn5];
int sz[maxn5], big[maxn5], h[maxn5];
int par[maxn5], f[maxn5], fid[maxn5];
int fir[maxn5], a[maxn5];

inline void add(int id, ll val){
	for(; id < maxn5; id += id & -id){
		fen[id] += val;
		have.pb(id);
	}
	return;
}
inline ll get(int id){
	ll ret = 0;
	for(; id; id -= id & -id)
		ret += fen[id];
	return ret;
}


inline void dfs_det(int v){
	sz[v] = 1;
	big[v] = -1;
	for(auto u : adj[v]){
		h[u] = h[v] + 1;
		dfs_det(u);
		sz[v] += sz[u];
		par[u] = v;
		if(big[v] == -1 || sz[big[v]] <= sz[u])
			big[v] = u;
	}
	return;
}

inline void dfs_hld(int v, int last, int id){
	f[v] = last;
	fid[v] = id;
	//cout << v << ' ' << f[v] << ' ' << fid[v] << endl;
	if(last == v)
		fir[id] = -h[v] + 1;
	av[id].insert({-h[v], maxn5 - 5});
	//cout << "then why ? " << v << ' ' << av[id].size() << endl;
	if(big[v] != -1){
		dfs_hld(big[v], last, id);
	}
	for(auto u : adj[v]) if(u != big[v]){
		dfs_hld(u, u, ind++);
	}
	return;
}

inline ll solve(int v, int val){
	if(v == -1) return 0;
	//cout << "aha " << v << ' ' << val << endl;
	int id = fid[v];
	auto it = av[id].lower_bound(mp(-h[v], -1));
	auto itt = it;
	itt--;
	ll ret = 0;
	if(h[v] > (it->fi) * -1){
		int len = (it == av[id].end() ? fir[id] : (it->fi)) + h[v];
		if((itt->se) > 1)
			ret += get((itt->se) - 1) * len;
		add(itt->se, len);
		//cout << "begor " << ' ' << (itt->fi) << ' ' << (itt->se) << ' ' << len << ' ' << ret << endl;
	}
	
	for(; it != av[id].end();){
		itt = it;
		int len = 0;
		itt++;
		if(itt != av[id].end())
			len = (itt->fi) - (it->fi);
		else
			len = fir[id] - (it->fi);
		itt--;
		if((it -> se) > 1)
			ret += get((it->se) - 1) * len;
		add(it->se, len);
		//cout << "Look " << (it->fi) << ' ' << (it->se) << ' ' << len << ' ' << ret << ' ' << fir[id] << endl;
		it++;
		av[id].erase(itt);
	}
	
	av[id].insert({-h[v], val});
	ret += solve(par[f[v]], val);
	return ret;
}

int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	
	int n; cin >> n;
	for(int i = 0; i < n; i++){
		cin >> a[i];
		liv.pb(a[i]);
	}
	
	sort(all(liv));
	liv.resize(unique(all(liv)) - liv.begin());
	for(int i = 0; i < n; i++)
		a[i] = (lower_bound(all(liv), a[i]) - liv.begin()) + 1;
	
	for(int i = 0; i < n - 1; i++){
		int a, b; cin >> a >> b;
		a--; b--;
		adj[a].pb(b);
		req.pb(b);
	}
	
	par[0] = -1;
	dfs_det(0);
	dfs_hld(0, 0, 0);

	
	for(auto u : req){
		have.clear();
		ll ans = solve(u, a[u]);
		cout << ans << '\n';
		for(auto v : have)
			fen[v] = 0;
	}
	
}

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7364 KB Output is correct
2 Correct 4 ms 7356 KB Output is correct
3 Correct 4 ms 7356 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7376 KB Output is correct
8 Correct 4 ms 7504 KB Output is correct
9 Correct 4 ms 7632 KB Output is correct
10 Correct 4 ms 7496 KB Output is correct
11 Correct 4 ms 7508 KB Output is correct
12 Correct 4 ms 7504 KB Output is correct
13 Correct 4 ms 7508 KB Output is correct
14 Correct 4 ms 7500 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7368 KB Output is correct
17 Correct 5 ms 7372 KB Output is correct
18 Correct 5 ms 7376 KB Output is correct
19 Correct 5 ms 7500 KB Output is correct
20 Correct 4 ms 7500 KB Output is correct
21 Correct 4 ms 7500 KB Output is correct
22 Correct 4 ms 7368 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7372 KB Output is correct
25 Correct 4 ms 7368 KB Output is correct
26 Correct 4 ms 7624 KB Output is correct
27 Correct 4 ms 7500 KB Output is correct
28 Correct 6 ms 7496 KB Output is correct
29 Correct 4 ms 7500 KB Output is correct
30 Correct 4 ms 7368 KB Output is correct
31 Correct 4 ms 7372 KB Output is correct
32 Correct 5 ms 7500 KB Output is correct
33 Correct 6 ms 7500 KB Output is correct
34 Correct 4 ms 7564 KB Output is correct
35 Correct 4 ms 7500 KB Output is correct
36 Correct 5 ms 7516 KB Output is correct
37 Correct 5 ms 7500 KB Output is correct
38 Correct 4 ms 7496 KB Output is correct
39 Correct 4 ms 7500 KB Output is correct
40 Correct 4 ms 7500 KB Output is correct
41 Correct 5 ms 7500 KB Output is correct
42 Correct 4 ms 7500 KB Output is correct
43 Correct 4 ms 7500 KB Output is correct
44 Correct 4 ms 7500 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7364 KB Output is correct
2 Correct 4 ms 7356 KB Output is correct
3 Correct 4 ms 7356 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7376 KB Output is correct
8 Correct 4 ms 7504 KB Output is correct
9 Correct 4 ms 7632 KB Output is correct
10 Correct 4 ms 7496 KB Output is correct
11 Correct 4 ms 7508 KB Output is correct
12 Correct 4 ms 7504 KB Output is correct
13 Correct 4 ms 7508 KB Output is correct
14 Correct 4 ms 7500 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7368 KB Output is correct
17 Correct 5 ms 7372 KB Output is correct
18 Correct 5 ms 7376 KB Output is correct
19 Correct 5 ms 7500 KB Output is correct
20 Correct 4 ms 7500 KB Output is correct
21 Correct 4 ms 7500 KB Output is correct
22 Correct 4 ms 7368 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7372 KB Output is correct
25 Correct 4 ms 7368 KB Output is correct
26 Correct 4 ms 7624 KB Output is correct
27 Correct 4 ms 7500 KB Output is correct
28 Correct 6 ms 7496 KB Output is correct
29 Correct 4 ms 7500 KB Output is correct
30 Correct 4 ms 7368 KB Output is correct
31 Correct 4 ms 7372 KB Output is correct
32 Correct 5 ms 7500 KB Output is correct
33 Correct 6 ms 7500 KB Output is correct
34 Correct 4 ms 7564 KB Output is correct
35 Correct 4 ms 7500 KB Output is correct
36 Correct 5 ms 7516 KB Output is correct
37 Correct 5 ms 7500 KB Output is correct
38 Correct 4 ms 7496 KB Output is correct
39 Correct 4 ms 7500 KB Output is correct
40 Correct 4 ms 7500 KB Output is correct
41 Correct 5 ms 7500 KB Output is correct
42 Correct 4 ms 7500 KB Output is correct
43 Correct 4 ms 7500 KB Output is correct
44 Correct 4 ms 7500 KB Output is correct
45 Correct 5 ms 7508 KB Output is correct
46 Correct 12 ms 7860 KB Output is correct
47 Correct 10 ms 7936 KB Output is correct
48 Correct 11 ms 7928 KB Output is correct
49 Correct 8 ms 9044 KB Output is correct
50 Correct 7 ms 9036 KB Output is correct
51 Correct 7 ms 9044 KB Output is correct
52 Correct 7 ms 8568 KB Output is correct
53 Correct 8 ms 8656 KB Output is correct
54 Correct 8 ms 8564 KB Output is correct
55 Correct 10 ms 8580 KB Output is correct
56 Correct 7 ms 8388 KB Output is correct
57 Correct 11 ms 7884 KB Output is correct
58 Correct 14 ms 7884 KB Output is correct
59 Correct 12 ms 7888 KB Output is correct
60 Correct 13 ms 7928 KB Output is correct
61 Correct 8 ms 8412 KB Output is correct
62 Correct 8 ms 8396 KB Output is correct
63 Correct 7 ms 8356 KB Output is correct
64 Correct 9 ms 7884 KB Output is correct
65 Correct 10 ms 7884 KB Output is correct
66 Correct 9 ms 7892 KB Output is correct
67 Correct 9 ms 7884 KB Output is correct
68 Correct 7 ms 8908 KB Output is correct
69 Correct 7 ms 8528 KB Output is correct
70 Correct 7 ms 8536 KB Output is correct
71 Correct 7 ms 8396 KB Output is correct
72 Correct 11 ms 7916 KB Output is correct
73 Correct 12 ms 7892 KB Output is correct
74 Correct 8 ms 8404 KB Output is correct
75 Correct 7 ms 8144 KB Output is correct
76 Correct 9 ms 8020 KB Output is correct
77 Correct 10 ms 8012 KB Output is correct
78 Correct 7 ms 8140 KB Output is correct
79 Correct 8 ms 7976 KB Output is correct
80 Correct 8 ms 8012 KB Output is correct
81 Correct 8 ms 8124 KB Output is correct
82 Correct 8 ms 8000 KB Output is correct
83 Correct 8 ms 8020 KB Output is correct
84 Correct 7 ms 8140 KB Output is correct
85 Correct 8 ms 8012 KB Output is correct
86 Correct 7 ms 8012 KB Output is correct

Subtask #3
84.0 / 84.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7364 KB Output is correct
2 Correct 4 ms 7356 KB Output is correct
3 Correct 4 ms 7356 KB Output is correct
4 Correct 4 ms 7364 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 5 ms 7376 KB Output is correct
8 Correct 4 ms 7504 KB Output is correct
9 Correct 4 ms 7632 KB Output is correct
10 Correct 4 ms 7496 KB Output is correct
11 Correct 4 ms 7508 KB Output is correct
12 Correct 4 ms 7504 KB Output is correct
13 Correct 4 ms 7508 KB Output is correct
14 Correct 4 ms 7500 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7368 KB Output is correct
17 Correct 5 ms 7372 KB Output is correct
18 Correct 5 ms 7376 KB Output is correct
19 Correct 5 ms 7500 KB Output is correct
20 Correct 4 ms 7500 KB Output is correct
21 Correct 4 ms 7500 KB Output is correct
22 Correct 4 ms 7368 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7372 KB Output is correct
25 Correct 4 ms 7368 KB Output is correct
26 Correct 4 ms 7624 KB Output is correct
27 Correct 4 ms 7500 KB Output is correct
28 Correct 6 ms 7496 KB Output is correct
29 Correct 4 ms 7500 KB Output is correct
30 Correct 4 ms 7368 KB Output is correct
31 Correct 4 ms 7372 KB Output is correct
32 Correct 5 ms 7500 KB Output is correct
33 Correct 6 ms 7500 KB Output is correct
34 Correct 4 ms 7564 KB Output is correct
35 Correct 4 ms 7500 KB Output is correct
36 Correct 5 ms 7516 KB Output is correct
37 Correct 5 ms 7500 KB Output is correct
38 Correct 4 ms 7496 KB Output is correct
39 Correct 4 ms 7500 KB Output is correct
40 Correct 4 ms 7500 KB Output is correct
41 Correct 5 ms 7500 KB Output is correct
42 Correct 4 ms 7500 KB Output is correct
43 Correct 4 ms 7500 KB Output is correct
44 Correct 4 ms 7500 KB Output is correct
45 Correct 5 ms 7508 KB Output is correct
46 Correct 12 ms 7860 KB Output is correct
47 Correct 10 ms 7936 KB Output is correct
48 Correct 11 ms 7928 KB Output is correct
49 Correct 8 ms 9044 KB Output is correct
50 Correct 7 ms 9036 KB Output is correct
51 Correct 7 ms 9044 KB Output is correct
52 Correct 7 ms 8568 KB Output is correct
53 Correct 8 ms 8656 KB Output is correct
54 Correct 8 ms 8564 KB Output is correct
55 Correct 10 ms 8580 KB Output is correct
56 Correct 7 ms 8388 KB Output is correct
57 Correct 11 ms 7884 KB Output is correct
58 Correct 14 ms 7884 KB Output is correct
59 Correct 12 ms 7888 KB Output is correct
60 Correct 13 ms 7928 KB Output is correct
61 Correct 8 ms 8412 KB Output is correct
62 Correct 8 ms 8396 KB Output is correct
63 Correct 7 ms 8356 KB Output is correct
64 Correct 9 ms 7884 KB Output is correct
65 Correct 10 ms 7884 KB Output is correct
66 Correct 9 ms 7892 KB Output is correct
67 Correct 9 ms 7884 KB Output is correct
68 Correct 7 ms 8908 KB Output is correct
69 Correct 7 ms 8528 KB Output is correct
70 Correct 7 ms 8536 KB Output is correct
71 Correct 7 ms 8396 KB Output is correct
72 Correct 11 ms 7916 KB Output is correct
73 Correct 12 ms 7892 KB Output is correct
74 Correct 8 ms 8404 KB Output is correct
75 Correct 7 ms 8144 KB Output is correct
76 Correct 9 ms 8020 KB Output is correct
77 Correct 10 ms 8012 KB Output is correct
78 Correct 7 ms 8140 KB Output is correct
79 Correct 8 ms 7976 KB Output is correct
80 Correct 8 ms 8012 KB Output is correct
81 Correct 8 ms 8124 KB Output is correct
82 Correct 8 ms 8000 KB Output is correct
83 Correct 8 ms 8020 KB Output is correct
84 Correct 7 ms 8140 KB Output is correct
85 Correct 8 ms 8012 KB Output is correct
86 Correct 7 ms 8012 KB Output is correct
87 Correct 23 ms 8604 KB Output is correct
88 Correct 63 ms 11324 KB Output is correct
89 Correct 249 ms 20544 KB Output is correct
90 Correct 250 ms 20544 KB Output is correct
91 Correct 267 ms 20620 KB Output is correct
92 Correct 138 ms 48324 KB Output is correct
93 Correct 126 ms 48348 KB Output is correct
94 Correct 132 ms 48396 KB Output is correct
95 Correct 120 ms 35520 KB Output is correct
96 Correct 130 ms 35900 KB Output is correct
97 Correct 132 ms 35904 KB Output is correct
98 Correct 122 ms 35908 KB Output is correct
99 Correct 119 ms 33828 KB Output is correct
100 Correct 338 ms 20676 KB Output is correct
101 Correct 396 ms 20960 KB Output is correct
102 Correct 390 ms 21060 KB Output is correct
103 Correct 406 ms 21068 KB Output is correct
104 Correct 137 ms 33956 KB Output is correct
105 Correct 143 ms 33752 KB Output is correct
106 Correct 133 ms 33788 KB Output is correct
107 Correct 232 ms 19044 KB Output is correct
108 Correct 246 ms 19080 KB Output is correct
109 Correct 232 ms 19532 KB Output is correct
110 Correct 125 ms 47040 KB Output is correct
111 Correct 127 ms 35592 KB Output is correct
112 Correct 115 ms 36520 KB Output is correct
113 Correct 112 ms 32456 KB Output is correct
114 Correct 335 ms 20608 KB Output is correct
115 Correct 375 ms 19536 KB Output is correct
116 Correct 140 ms 32588 KB Output is correct
117 Correct 123 ms 26840 KB Output is correct
118 Correct 121 ms 24568 KB Output is correct
119 Correct 124 ms 23504 KB Output is correct
120 Correct 112 ms 25652 KB Output is correct
121 Correct 115 ms 23540 KB Output is correct
122 Correct 112 ms 22392 KB Output is correct
123 Correct 150 ms 26840 KB Output is correct
124 Correct 138 ms 24648 KB Output is correct
125 Correct 136 ms 23496 KB Output is correct
126 Correct 141 ms 25804 KB Output is correct
127 Correct 138 ms 23632 KB Output is correct
128 Correct 131 ms 22552 KB Output is correct