답안 #172014

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
172014	2019-12-30T20:13:26 Z	super_j6	Construction of Highway (JOI18_construction)	C++14	100 / 100	400 ms	17972 KB

construction

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
#include <string.h>
using namespace std;
#define endl '\n'
#define pi pair<int, int>
#define f first
#define s second
#define pb push_back

const int maxn = 100001;
struct BIT{
	int bit[maxn];
	
	void clr(int x){
		x++;
		memset(bit, 0, sizeof(int) * x);
	}
	
	void add(int x, int v){
		for(x++; x < maxn; x += x & -x) bit[x] += v;
	}
	
	int qry(int x){
		int ret = 0;
		for(x++; x; x -= x & -x) ret += bit[x];
		return ret;
	}
};

int n;
int col[maxn], hd[maxn], p[maxn], sz[maxn], d[maxn];
pi e[maxn];
vector<int> graph[maxn];
vector<pi> cur[maxn];
BIT bit;

int dfs(int c){
	sz[c] = 1;
	for(int i : graph[c]){
		d[i] = d[c] + 1;
		sz[c] += dfs(i);
	}
	return sz[c];
}

void hld(int c){
	if(graph[c].empty()) return;
	int b = graph[c][0];
	for(int i : graph[c]) if(sz[i] > sz[b]) b = i;
	for(int i : graph[c]){
		hd[i] = (i == b ? hd[c] : i);
		hld(i);
	}
}

int solve(int a, int b){
	vector<int> id;
	vector<pi> val, tmp;
	while(a != -1){
		int c = d[a] - d[hd[a]] + 1;
		tmp.clear();
		for(int i = cur[hd[a]].size() - 1; i >= 0; i--){
			if(cur[hd[a]][i].s < c){
				tmp.pb(cur[hd[a]][i]);
				c -= cur[hd[a]][i].s;
			}else{
				tmp.pb({cur[hd[a]][i].f, c});
				break;
			}
		}
		reverse(tmp.begin(), tmp.end());
		for(pi i : tmp) val.pb(i), id.pb(i.first);
		a = p[hd[a]];
	}
	sort(id.begin(), id.end());
	id.erase(unique(id.begin(), id.end()), id.end());
	bit.clr(id.size());
	int ret = 0;
	for(pi i : val){
		int j = lower_bound(id.begin(), id.end(), i.f) - id.begin();
		ret += i.s * bit.qry(j - 1);
		bit.add(j, i.s);
	}
	int bcol = col[b];
	while(b != -1){
		int c = d[b] - d[hd[b]] + 1;
		while(!cur[hd[b]].empty()){
			if(cur[hd[b]].back().s <= c){
				c -= cur[hd[b]].back().s;
				cur[hd[b]].pop_back();
			}else{
				cur[hd[b]].back().s -= c;
				break;
			}
		}
		cur[hd[b]].pb({bcol, d[b] - d[hd[b]] + 1});
		b = p[hd[b]];
	}
	return ret;
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	
	cin >> n;
	
	for(int i = 0; i < n; i++) cin >> col[i];
	p[0] = -1;
	for(int i = 0; i < n - 1; i++){
		cin >> e[i].f >> e[i].s;
		e[i].f--, e[i].s--;
		graph[e[i].f].pb(e[i].s);
		p[e[i].s] = e[i].f;
	}
	
	dfs(0), hld(0);
	cur[0].pb({col[0], 1});
	for(int i = 0; i < n - 1; i++) cout << solve(e[i].f, e[i].s) << endl;;

	return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5112 KB	Output is correct
2	Correct	6 ms	5112 KB	Output is correct
3	Correct	6 ms	5112 KB	Output is correct
4	Correct	6 ms	5112 KB	Output is correct
5	Correct	6 ms	5112 KB	Output is correct
6	Correct	6 ms	5112 KB	Output is correct
7	Correct	6 ms	5112 KB	Output is correct
8	Correct	6 ms	5116 KB	Output is correct
9	Correct	6 ms	5112 KB	Output is correct
10	Correct	6 ms	5112 KB	Output is correct
11	Correct	6 ms	5108 KB	Output is correct
12	Correct	6 ms	5112 KB	Output is correct
13	Correct	6 ms	5116 KB	Output is correct
14	Correct	6 ms	5112 KB	Output is correct
15	Correct	7 ms	5112 KB	Output is correct
16	Correct	7 ms	5112 KB	Output is correct
17	Correct	7 ms	5112 KB	Output is correct
18	Correct	7 ms	5112 KB	Output is correct
19	Correct	6 ms	5112 KB	Output is correct
20	Correct	6 ms	5112 KB	Output is correct
21	Correct	6 ms	5112 KB	Output is correct
22	Correct	6 ms	5112 KB	Output is correct
23	Correct	6 ms	5112 KB	Output is correct
24	Correct	6 ms	5112 KB	Output is correct
25	Correct	6 ms	5112 KB	Output is correct
26	Correct	6 ms	5112 KB	Output is correct
27	Correct	6 ms	5112 KB	Output is correct
28	Correct	6 ms	5112 KB	Output is correct
29	Correct	6 ms	5112 KB	Output is correct
30	Correct	6 ms	5112 KB	Output is correct
31	Correct	7 ms	5112 KB	Output is correct
32	Correct	6 ms	5112 KB	Output is correct
33	Correct	6 ms	5112 KB	Output is correct
34	Correct	6 ms	5112 KB	Output is correct
35	Correct	6 ms	5112 KB	Output is correct
36	Correct	6 ms	5112 KB	Output is correct
37	Correct	6 ms	5116 KB	Output is correct
38	Correct	6 ms	5240 KB	Output is correct
39	Correct	6 ms	5100 KB	Output is correct
40	Correct	6 ms	5116 KB	Output is correct
41	Correct	6 ms	5112 KB	Output is correct
42	Correct	6 ms	5112 KB	Output is correct
43	Correct	6 ms	5112 KB	Output is correct
44	Correct	6 ms	5112 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5112 KB	Output is correct
2	Correct	6 ms	5112 KB	Output is correct
3	Correct	6 ms	5112 KB	Output is correct
4	Correct	6 ms	5112 KB	Output is correct
5	Correct	6 ms	5112 KB	Output is correct
6	Correct	6 ms	5112 KB	Output is correct
7	Correct	6 ms	5112 KB	Output is correct
8	Correct	6 ms	5116 KB	Output is correct
9	Correct	6 ms	5112 KB	Output is correct
10	Correct	6 ms	5112 KB	Output is correct
11	Correct	6 ms	5108 KB	Output is correct
12	Correct	6 ms	5112 KB	Output is correct
13	Correct	6 ms	5116 KB	Output is correct
14	Correct	6 ms	5112 KB	Output is correct
15	Correct	7 ms	5112 KB	Output is correct
16	Correct	7 ms	5112 KB	Output is correct
17	Correct	7 ms	5112 KB	Output is correct
18	Correct	7 ms	5112 KB	Output is correct
19	Correct	6 ms	5112 KB	Output is correct
20	Correct	6 ms	5112 KB	Output is correct
21	Correct	6 ms	5112 KB	Output is correct
22	Correct	6 ms	5112 KB	Output is correct
23	Correct	6 ms	5112 KB	Output is correct
24	Correct	6 ms	5112 KB	Output is correct
25	Correct	6 ms	5112 KB	Output is correct
26	Correct	6 ms	5112 KB	Output is correct
27	Correct	6 ms	5112 KB	Output is correct
28	Correct	6 ms	5112 KB	Output is correct
29	Correct	6 ms	5112 KB	Output is correct
30	Correct	6 ms	5112 KB	Output is correct
31	Correct	7 ms	5112 KB	Output is correct
32	Correct	6 ms	5112 KB	Output is correct
33	Correct	6 ms	5112 KB	Output is correct
34	Correct	6 ms	5112 KB	Output is correct
35	Correct	6 ms	5112 KB	Output is correct
36	Correct	6 ms	5112 KB	Output is correct
37	Correct	6 ms	5116 KB	Output is correct
38	Correct	6 ms	5240 KB	Output is correct
39	Correct	6 ms	5100 KB	Output is correct
40	Correct	6 ms	5116 KB	Output is correct
41	Correct	6 ms	5112 KB	Output is correct
42	Correct	6 ms	5112 KB	Output is correct
43	Correct	6 ms	5112 KB	Output is correct
44	Correct	6 ms	5112 KB	Output is correct
45	Correct	7 ms	5240 KB	Output is correct
46	Correct	12 ms	5496 KB	Output is correct
47	Correct	13 ms	5496 KB	Output is correct
48	Correct	12 ms	5368 KB	Output is correct
49	Correct	9 ms	5624 KB	Output is correct
50	Correct	9 ms	5624 KB	Output is correct
51	Correct	9 ms	5624 KB	Output is correct
52	Correct	9 ms	5496 KB	Output is correct
53	Correct	10 ms	5496 KB	Output is correct
54	Correct	9 ms	5496 KB	Output is correct
55	Correct	10 ms	5496 KB	Output is correct
56	Correct	10 ms	5496 KB	Output is correct
57	Correct	14 ms	5372 KB	Output is correct
58	Correct	15 ms	5368 KB	Output is correct
59	Correct	15 ms	5368 KB	Output is correct
60	Correct	15 ms	5496 KB	Output is correct
61	Correct	10 ms	5496 KB	Output is correct
62	Correct	10 ms	5496 KB	Output is correct
63	Correct	10 ms	5496 KB	Output is correct
64	Correct	12 ms	5448 KB	Output is correct
65	Correct	12 ms	5368 KB	Output is correct
66	Correct	12 ms	5340 KB	Output is correct
67	Correct	12 ms	5368 KB	Output is correct
68	Correct	9 ms	5624 KB	Output is correct
69	Correct	9 ms	5596 KB	Output is correct
70	Correct	9 ms	5496 KB	Output is correct
71	Correct	9 ms	5496 KB	Output is correct
72	Correct	14 ms	5368 KB	Output is correct
73	Correct	15 ms	5368 KB	Output is correct
74	Correct	9 ms	5496 KB	Output is correct
75	Correct	9 ms	5424 KB	Output is correct
76	Correct	10 ms	5368 KB	Output is correct
77	Correct	10 ms	5472 KB	Output is correct
78	Correct	9 ms	5496 KB	Output is correct
79	Correct	10 ms	5368 KB	Output is correct
80	Correct	10 ms	5368 KB	Output is correct
81	Correct	10 ms	5372 KB	Output is correct
82	Correct	10 ms	5496 KB	Output is correct
83	Correct	10 ms	5424 KB	Output is correct
84	Correct	9 ms	5496 KB	Output is correct
85	Correct	10 ms	5496 KB	Output is correct
86	Correct	10 ms	5340 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	5112 KB	Output is correct
2	Correct	6 ms	5112 KB	Output is correct
3	Correct	6 ms	5112 KB	Output is correct
4	Correct	6 ms	5112 KB	Output is correct
5	Correct	6 ms	5112 KB	Output is correct
6	Correct	6 ms	5112 KB	Output is correct
7	Correct	6 ms	5112 KB	Output is correct
8	Correct	6 ms	5116 KB	Output is correct
9	Correct	6 ms	5112 KB	Output is correct
10	Correct	6 ms	5112 KB	Output is correct
11	Correct	6 ms	5108 KB	Output is correct
12	Correct	6 ms	5112 KB	Output is correct
13	Correct	6 ms	5116 KB	Output is correct
14	Correct	6 ms	5112 KB	Output is correct
15	Correct	7 ms	5112 KB	Output is correct
16	Correct	7 ms	5112 KB	Output is correct
17	Correct	7 ms	5112 KB	Output is correct
18	Correct	7 ms	5112 KB	Output is correct
19	Correct	6 ms	5112 KB	Output is correct
20	Correct	6 ms	5112 KB	Output is correct
21	Correct	6 ms	5112 KB	Output is correct
22	Correct	6 ms	5112 KB	Output is correct
23	Correct	6 ms	5112 KB	Output is correct
24	Correct	6 ms	5112 KB	Output is correct
25	Correct	6 ms	5112 KB	Output is correct
26	Correct	6 ms	5112 KB	Output is correct
27	Correct	6 ms	5112 KB	Output is correct
28	Correct	6 ms	5112 KB	Output is correct
29	Correct	6 ms	5112 KB	Output is correct
30	Correct	6 ms	5112 KB	Output is correct
31	Correct	7 ms	5112 KB	Output is correct
32	Correct	6 ms	5112 KB	Output is correct
33	Correct	6 ms	5112 KB	Output is correct
34	Correct	6 ms	5112 KB	Output is correct
35	Correct	6 ms	5112 KB	Output is correct
36	Correct	6 ms	5112 KB	Output is correct
37	Correct	6 ms	5116 KB	Output is correct
38	Correct	6 ms	5240 KB	Output is correct
39	Correct	6 ms	5100 KB	Output is correct
40	Correct	6 ms	5116 KB	Output is correct
41	Correct	6 ms	5112 KB	Output is correct
42	Correct	6 ms	5112 KB	Output is correct
43	Correct	6 ms	5112 KB	Output is correct
44	Correct	6 ms	5112 KB	Output is correct
45	Correct	7 ms	5240 KB	Output is correct
46	Correct	12 ms	5496 KB	Output is correct
47	Correct	13 ms	5496 KB	Output is correct
48	Correct	12 ms	5368 KB	Output is correct
49	Correct	9 ms	5624 KB	Output is correct
50	Correct	9 ms	5624 KB	Output is correct
51	Correct	9 ms	5624 KB	Output is correct
52	Correct	9 ms	5496 KB	Output is correct
53	Correct	10 ms	5496 KB	Output is correct
54	Correct	9 ms	5496 KB	Output is correct
55	Correct	10 ms	5496 KB	Output is correct
56	Correct	10 ms	5496 KB	Output is correct
57	Correct	14 ms	5372 KB	Output is correct
58	Correct	15 ms	5368 KB	Output is correct
59	Correct	15 ms	5368 KB	Output is correct
60	Correct	15 ms	5496 KB	Output is correct
61	Correct	10 ms	5496 KB	Output is correct
62	Correct	10 ms	5496 KB	Output is correct
63	Correct	10 ms	5496 KB	Output is correct
64	Correct	12 ms	5448 KB	Output is correct
65	Correct	12 ms	5368 KB	Output is correct
66	Correct	12 ms	5340 KB	Output is correct
67	Correct	12 ms	5368 KB	Output is correct
68	Correct	9 ms	5624 KB	Output is correct
69	Correct	9 ms	5596 KB	Output is correct
70	Correct	9 ms	5496 KB	Output is correct
71	Correct	9 ms	5496 KB	Output is correct
72	Correct	14 ms	5368 KB	Output is correct
73	Correct	15 ms	5368 KB	Output is correct
74	Correct	9 ms	5496 KB	Output is correct
75	Correct	9 ms	5424 KB	Output is correct
76	Correct	10 ms	5368 KB	Output is correct
77	Correct	10 ms	5472 KB	Output is correct
78	Correct	9 ms	5496 KB	Output is correct
79	Correct	10 ms	5368 KB	Output is correct
80	Correct	10 ms	5368 KB	Output is correct
81	Correct	10 ms	5372 KB	Output is correct
82	Correct	10 ms	5496 KB	Output is correct
83	Correct	10 ms	5424 KB	Output is correct
84	Correct	9 ms	5496 KB	Output is correct
85	Correct	10 ms	5496 KB	Output is correct
86	Correct	10 ms	5340 KB	Output is correct
87	Correct	23 ms	5880 KB	Output is correct
88	Correct	64 ms	7532 KB	Output is correct
89	Correct	232 ms	13432 KB	Output is correct
90	Correct	232 ms	13604 KB	Output is correct
91	Correct	227 ms	13432 KB	Output is correct
92	Correct	100 ms	17912 KB	Output is correct
93	Correct	101 ms	17972 KB	Output is correct
94	Correct	102 ms	17912 KB	Output is correct
95	Correct	111 ms	17052 KB	Output is correct
96	Correct	119 ms	17456 KB	Output is correct
97	Correct	121 ms	17492 KB	Output is correct
98	Correct	119 ms	17496 KB	Output is correct
99	Correct	114 ms	15808 KB	Output is correct
100	Correct	272 ms	13304 KB	Output is correct
101	Correct	330 ms	13560 KB	Output is correct
102	Correct	335 ms	13688 KB	Output is correct
103	Correct	400 ms	13560 KB	Output is correct
104	Correct	123 ms	15720 KB	Output is correct
105	Correct	117 ms	15804 KB	Output is correct
106	Correct	120 ms	15736 KB	Output is correct
107	Correct	214 ms	12664 KB	Output is correct
108	Correct	229 ms	12892 KB	Output is correct
109	Correct	233 ms	13148 KB	Output is correct
110	Correct	94 ms	17400 KB	Output is correct
111	Correct	108 ms	17136 KB	Output is correct
112	Correct	107 ms	16748 KB	Output is correct
113	Correct	106 ms	15096 KB	Output is correct
114	Correct	272 ms	13304 KB	Output is correct
115	Correct	331 ms	13048 KB	Output is correct
116	Correct	115 ms	15224 KB	Output is correct
117	Correct	116 ms	14200 KB	Output is correct
118	Correct	118 ms	13816 KB	Output is correct
119	Correct	120 ms	13724 KB	Output is correct
120	Correct	118 ms	13804 KB	Output is correct
121	Correct	115 ms	13560 KB	Output is correct
122	Correct	124 ms	13376 KB	Output is correct
123	Correct	127 ms	14328 KB	Output is correct
124	Correct	131 ms	13944 KB	Output is correct
125	Correct	141 ms	13864 KB	Output is correct
126	Correct	127 ms	14068 KB	Output is correct
127	Correct	128 ms	13632 KB	Output is correct
128	Correct	133 ms	13432 KB	Output is correct

답안 #172014

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