답안 #335382

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
335382	2020-12-12T07:34:10 Z	amoo_safar	Construction of Highway (JOI18_construction)	C++17	100 / 100	539 ms	17136 KB

construction

// vaziat meshki-ghermeze !
#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " : " << x << '\n'

using namespace std;

typedef long long ll;
typedef long double ld;
typedef string str;
typedef pair<ll, ll> pll;

const ll Mod = 1000000007LL;
const int N = 1e5 + 10;
const ll Inf = 2242545357980376863LL;
const int Log = 19;

int fen[N];
void Add(int idx, int x){
	for(; idx < N; idx += idx & (-idx))
		fen[idx] += x;
}
int Get(int idx){
	int res = 0;
	for(; idx; idx -= idx & (-idx))
		res += fen[idx];
	return res;
}

int par[N][Log], dep[N];
int val[N], ep[N];
int C[N];

int Blift(int u, int h){
	for(int i = 0; i < Log; i++)
		if(h >> i & 1)
			u = par[u][i];
	return u;
}

typedef pair<int, int> pii;
vector<pii> A;
void Solve(int rt, int u, int v){
	// cerr << "! " << rt << ' ' << u << ' ' << v << '\n';
	if(rt == v) return ;
	if(ep[rt] == u){
		A.pb({val[rt], dep[v] - dep[rt]});
		return ;
	}
	int v1 = v;
	int v2 = ep[rt];
	if(dep[v1] > dep[v2])
		v1 = Blift(v1, dep[v1] - dep[v2]);
	else
		v2 = Blift(v2, dep[v2] - dep[v1]);
	// assert(v1 != v2);
	for(int l = Log - 1; l >= 0; l--){
		if(par[v1][l] != par[v2][l])
			v1 = par[v1][l], v2 = par[v2][l];
	}
	A.pb({val[rt], dep[v2] - dep[rt]});
	ep[v2] = ep[rt];
	val[v2] = val[rt];
	Solve(v1, u, v);
	return ;
}
ll Calc(){
	reverse(all(A));
	ll res = 0;
	for(auto X : A){
		res += 1ll * X.S * Get(X.F - 1);
		Add(X.F, X.S);
	}
	for(auto X : A)
		Add(X.F, -X.S);
	return res;
}
int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	vector<int> V;
	for(int i = 1; i <= n; i++){
		cin >> C[i];
		V.pb(C[i]);
	}
	sort(all(V));
	for(int i = 1; i <= n; i++){
		C[i] = lower_bound(all(V), C[i]) - V.begin();
		C[i] += 3;
	}
	dep[1] = 0;
	val[1] = C[1];
	ep[1] = 1;

	int u, v;
	for(int i = 1; i < n; i++){
		cin >> u >> v;
		par[v][0] = u;
		dep[v] = dep[u] + 1;
		for(int i = 1; i < Log; i++)
			par[v][i] = par[par[v][i - 1]][i - 1];	
	
		A.clear();
		Solve(1, u, v);
		val[1] = C[v];
		ep[1] = v;
		cout << Calc() << '\n';
	}
	return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	408 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	492 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 KB	Output is correct
23	Correct	1 ms	492 KB	Output is correct
24	Correct	1 ms	512 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	1 ms	492 KB	Output is correct
27	Correct	1 ms	492 KB	Output is correct
28	Correct	1 ms	492 KB	Output is correct
29	Correct	1 ms	492 KB	Output is correct
30	Correct	1 ms	492 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	1 ms	512 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	492 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	408 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	492 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 KB	Output is correct
23	Correct	1 ms	492 KB	Output is correct
24	Correct	1 ms	512 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	1 ms	492 KB	Output is correct
27	Correct	1 ms	492 KB	Output is correct
28	Correct	1 ms	492 KB	Output is correct
29	Correct	1 ms	492 KB	Output is correct
30	Correct	1 ms	492 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	1 ms	512 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	492 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct
45	Correct	2 ms	492 KB	Output is correct
46	Correct	6 ms	876 KB	Output is correct
47	Correct	6 ms	876 KB	Output is correct
48	Correct	6 ms	876 KB	Output is correct
49	Correct	4 ms	876 KB	Output is correct
50	Correct	4 ms	876 KB	Output is correct
51	Correct	4 ms	876 KB	Output is correct
52	Correct	4 ms	1004 KB	Output is correct
53	Correct	5 ms	1004 KB	Output is correct
54	Correct	5 ms	1004 KB	Output is correct
55	Correct	5 ms	1004 KB	Output is correct
56	Correct	4 ms	876 KB	Output is correct
57	Correct	10 ms	876 KB	Output is correct
58	Correct	10 ms	876 KB	Output is correct
59	Correct	10 ms	876 KB	Output is correct
60	Correct	10 ms	876 KB	Output is correct
61	Correct	5 ms	876 KB	Output is correct
62	Correct	5 ms	876 KB	Output is correct
63	Correct	5 ms	876 KB	Output is correct
64	Correct	5 ms	876 KB	Output is correct
65	Correct	6 ms	876 KB	Output is correct
66	Correct	6 ms	876 KB	Output is correct
67	Correct	6 ms	876 KB	Output is correct
68	Correct	3 ms	876 KB	Output is correct
69	Correct	4 ms	1132 KB	Output is correct
70	Correct	5 ms	1004 KB	Output is correct
71	Correct	4 ms	876 KB	Output is correct
72	Correct	10 ms	876 KB	Output is correct
73	Correct	10 ms	876 KB	Output is correct
74	Correct	4 ms	876 KB	Output is correct
75	Correct	4 ms	876 KB	Output is correct
76	Correct	5 ms	876 KB	Output is correct
77	Correct	4 ms	876 KB	Output is correct
78	Correct	4 ms	876 KB	Output is correct
79	Correct	4 ms	896 KB	Output is correct
80	Correct	4 ms	876 KB	Output is correct
81	Correct	5 ms	876 KB	Output is correct
82	Correct	5 ms	876 KB	Output is correct
83	Correct	6 ms	876 KB	Output is correct
84	Correct	5 ms	876 KB	Output is correct
85	Correct	4 ms	876 KB	Output is correct
86	Correct	4 ms	876 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	2 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	408 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	1 ms	492 KB	Output is correct
18	Correct	1 ms	492 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	492 KB	Output is correct
21	Correct	1 ms	492 KB	Output is correct
22	Correct	1 ms	492 KB	Output is correct
23	Correct	1 ms	492 KB	Output is correct
24	Correct	1 ms	512 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	1 ms	492 KB	Output is correct
27	Correct	1 ms	492 KB	Output is correct
28	Correct	1 ms	492 KB	Output is correct
29	Correct	1 ms	492 KB	Output is correct
30	Correct	1 ms	492 KB	Output is correct
31	Correct	1 ms	492 KB	Output is correct
32	Correct	1 ms	492 KB	Output is correct
33	Correct	1 ms	492 KB	Output is correct
34	Correct	1 ms	492 KB	Output is correct
35	Correct	1 ms	512 KB	Output is correct
36	Correct	1 ms	492 KB	Output is correct
37	Correct	1 ms	492 KB	Output is correct
38	Correct	1 ms	492 KB	Output is correct
39	Correct	1 ms	492 KB	Output is correct
40	Correct	1 ms	492 KB	Output is correct
41	Correct	1 ms	492 KB	Output is correct
42	Correct	1 ms	492 KB	Output is correct
43	Correct	1 ms	492 KB	Output is correct
44	Correct	1 ms	492 KB	Output is correct
45	Correct	2 ms	492 KB	Output is correct
46	Correct	6 ms	876 KB	Output is correct
47	Correct	6 ms	876 KB	Output is correct
48	Correct	6 ms	876 KB	Output is correct
49	Correct	4 ms	876 KB	Output is correct
50	Correct	4 ms	876 KB	Output is correct
51	Correct	4 ms	876 KB	Output is correct
52	Correct	4 ms	1004 KB	Output is correct
53	Correct	5 ms	1004 KB	Output is correct
54	Correct	5 ms	1004 KB	Output is correct
55	Correct	5 ms	1004 KB	Output is correct
56	Correct	4 ms	876 KB	Output is correct
57	Correct	10 ms	876 KB	Output is correct
58	Correct	10 ms	876 KB	Output is correct
59	Correct	10 ms	876 KB	Output is correct
60	Correct	10 ms	876 KB	Output is correct
61	Correct	5 ms	876 KB	Output is correct
62	Correct	5 ms	876 KB	Output is correct
63	Correct	5 ms	876 KB	Output is correct
64	Correct	5 ms	876 KB	Output is correct
65	Correct	6 ms	876 KB	Output is correct
66	Correct	6 ms	876 KB	Output is correct
67	Correct	6 ms	876 KB	Output is correct
68	Correct	3 ms	876 KB	Output is correct
69	Correct	4 ms	1132 KB	Output is correct
70	Correct	5 ms	1004 KB	Output is correct
71	Correct	4 ms	876 KB	Output is correct
72	Correct	10 ms	876 KB	Output is correct
73	Correct	10 ms	876 KB	Output is correct
74	Correct	4 ms	876 KB	Output is correct
75	Correct	4 ms	876 KB	Output is correct
76	Correct	5 ms	876 KB	Output is correct
77	Correct	4 ms	876 KB	Output is correct
78	Correct	4 ms	876 KB	Output is correct
79	Correct	4 ms	896 KB	Output is correct
80	Correct	4 ms	876 KB	Output is correct
81	Correct	5 ms	876 KB	Output is correct
82	Correct	5 ms	876 KB	Output is correct
83	Correct	6 ms	876 KB	Output is correct
84	Correct	5 ms	876 KB	Output is correct
85	Correct	4 ms	876 KB	Output is correct
86	Correct	4 ms	876 KB	Output is correct
87	Correct	17 ms	1644 KB	Output is correct
88	Correct	56 ms	4204 KB	Output is correct
89	Correct	271 ms	12652 KB	Output is correct
90	Correct	269 ms	12780 KB	Output is correct
91	Correct	265 ms	12652 KB	Output is correct
92	Correct	148 ms	11756 KB	Output is correct
93	Correct	156 ms	11756 KB	Output is correct
94	Correct	146 ms	11756 KB	Output is correct
95	Correct	175 ms	16496 KB	Output is correct
96	Correct	180 ms	16880 KB	Output is correct
97	Correct	182 ms	16880 KB	Output is correct
98	Correct	188 ms	17136 KB	Output is correct
99	Correct	173 ms	12780 KB	Output is correct
100	Correct	483 ms	12396 KB	Output is correct
101	Correct	532 ms	12908 KB	Output is correct
102	Correct	539 ms	12780 KB	Output is correct
103	Correct	534 ms	12652 KB	Output is correct
104	Correct	224 ms	12780 KB	Output is correct
105	Correct	224 ms	12652 KB	Output is correct
106	Correct	235 ms	12780 KB	Output is correct
107	Correct	237 ms	11628 KB	Output is correct
108	Correct	248 ms	12104 KB	Output is correct
109	Correct	267 ms	12396 KB	Output is correct
110	Correct	135 ms	11244 KB	Output is correct
111	Correct	173 ms	16496 KB	Output is correct
112	Correct	173 ms	16240 KB	Output is correct
113	Correct	168 ms	12116 KB	Output is correct
114	Correct	483 ms	12352 KB	Output is correct
115	Correct	528 ms	12140 KB	Output is correct
116	Correct	223 ms	12140 KB	Output is correct
117	Correct	167 ms	12396 KB	Output is correct
118	Correct	159 ms	12396 KB	Output is correct
119	Correct	161 ms	12396 KB	Output is correct
120	Correct	155 ms	12140 KB	Output is correct
121	Correct	151 ms	12140 KB	Output is correct
122	Correct	152 ms	12140 KB	Output is correct
123	Correct	245 ms	12396 KB	Output is correct
124	Correct	236 ms	12396 KB	Output is correct
125	Correct	239 ms	12396 KB	Output is correct
126	Correct	233 ms	12140 KB	Output is correct
127	Correct	235 ms	12268 KB	Output is correct
128	Correct	234 ms	12268 KB	Output is correct

답안 #335382

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 9.0 / 9.0

Subtask #3 84.0 / 84.0

Subtask #1
7.0 / 7.0

Subtask #2
9.0 / 9.0

Subtask #3
84.0 / 84.0