답안 #56430 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
56430	2018-07-11T09:57:46 Z	ics0503	Construction of Highway (JOI18_construction)	C++17	100 / 100	766 ms	91964 KB

construction

#include<stdio.h>
#include<vector>
using namespace std;
int par[121212][20];
int num[121212], S[121212], E[121212], cnt, tn, depth[121212];;
vector<int>edge[121212];
struct xy { int x, y; }tree[313131];
xy max(xy a, xy b) { if (a.x > b.x)return a; return b; }
void insert_g(int w, xy g) { for (int i = w + tn; i > 0; i /= 2)tree[i] = max(tree[i], g); }
int search_g(int s, int e) {
	s += tn; e += tn; xy res = { -1,0 };
	while (s <= e) {
		if ((s & 1) == 1)res = max(res, tree[s++]);
		if ((e & 1) == 0)res = max(res, tree[e--]);
		s /= 2; e /= 2;
	}
	return res.y;
}
void dfs(int w, int bef, int dep) {
	par[w][0] = bef; depth[w] = dep;
	for (int i = 0; par[w][i] != -1; i++)par[w][i + 1] = par[par[w][i]][i];
	num[w] = S[w] = ++cnt;
	for (int i = 0; i < edge[w].size(); i++)if (edge[w][i] != bef) {
		dfs(edge[w][i], w, dep + 1);
	}
	E[w] = cnt;
}
int get_C(int x) { return search_g(S[x], E[x]); }
int A[121212], B[121212];
int C[121212], CSD[121212];
int go(int a, int b) { for (int i = 0; i < 20; i++)if ((1 << i)&b)a = par[a][i]; return a; }
vector<xy>L;
xy temp[121212];
long long f(int s, int e) {
	if (s == e)return 0;
	int m = (s + e) / 2, i;
	long long res = f(s, m) + f(m + 1, e);
	int p1 = s, p2 = m + 1;
	int jw = m, S = 0;
	for (i = s; i <= m; i++) {
		while (jw + 1 <= e&&L[i].x < L[jw + 1].x)S += L[++jw].y;
		res += (long long)L[i].y * S;
	}
	for (i = s; i <= e; i++) {
		if (p1 == m + 1 || (p2 != e + 1 && L[p1].x < L[p2].x)) temp[i] = L[p2++];
		else temp[i] = L[p1++];
	}
	for (i = s; i <= e; i++) L[i] = temp[i];
	return res;
}
int main() {
	int n; scanf("%d", &n);
	int i, j;
	for (tn = 1; tn < n + 1; tn *= 2);
	for (i = 0; i < tn * 2; i++)tree[i].x = -1;
	for (i = 1; i <= n; i++)scanf("%d", &C[i]);
	for (i = 1; i <= n; i++)for (j = 0; j < 20; j++)par[i][j] = -1;
	for (i = 1; i <= n - 1; i++) {
		int s, e; scanf("%d%d", &s, &e);
		A[i] = s; B[i] = e;
		edge[s].push_back(e); edge[e].push_back(s);
	}
	dfs(1, -1, 0);
	CSD[1] = 0; insert_g(1, { 0,1 });
	for (i = 1; i <= n - 1; i++) {
		L.clear();
		int e = B[i], now = par[e][0];
		while (now != -1) {
			int nowC = get_C(now);
			int cs = go(now, depth[now] - CSD[nowC]);
			L.push_back({ C[nowC],depth[now] - CSD[nowC] + 1 });
			CSD[nowC] = depth[now] + 1;
			now = par[cs][0];
		}
		insert_g(num[e], { i, e });
		printf("%lld\n", f(0, L.size() - 1));
	}
	return 0;
}

Compilation message

construction.cpp: In function 'void dfs(int, int, int)':
construction.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < edge[w].size(); i++)if (edge[w][i] != bef) {
                  ~~^~~~~~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n; scanf("%d", &n);
         ~~~~~^~~~~~~~~~
construction.cpp:56:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (i = 1; i <= n; i++)scanf("%d", &C[i]);
                          ~~~~~^~~~~~~~~~~~~
construction.cpp:59:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int s, e; scanf("%d%d", &s, &e);
             ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3320 KB	Output is correct
2	Correct	4 ms	3320 KB	Output is correct
3	Correct	4 ms	3380 KB	Output is correct
4	Correct	5 ms	3424 KB	Output is correct
5	Correct	5 ms	3476 KB	Output is correct
6	Correct	6 ms	3524 KB	Output is correct
7	Correct	6 ms	3544 KB	Output is correct
8	Correct	5 ms	3552 KB	Output is correct
9	Correct	4 ms	3552 KB	Output is correct
10	Correct	5 ms	3576 KB	Output is correct
11	Correct	6 ms	3576 KB	Output is correct
12	Correct	5 ms	3576 KB	Output is correct
13	Correct	5 ms	3660 KB	Output is correct
14	Correct	5 ms	3660 KB	Output is correct
15	Correct	7 ms	3660 KB	Output is correct
16	Correct	6 ms	3660 KB	Output is correct
17	Correct	6 ms	3660 KB	Output is correct
18	Correct	7 ms	3660 KB	Output is correct
19	Correct	6 ms	3660 KB	Output is correct
20	Correct	6 ms	3660 KB	Output is correct
21	Correct	7 ms	3704 KB	Output is correct
22	Correct	5 ms	3704 KB	Output is correct
23	Correct	5 ms	3704 KB	Output is correct
24	Correct	6 ms	3704 KB	Output is correct
25	Correct	7 ms	3704 KB	Output is correct
26	Correct	5 ms	3704 KB	Output is correct
27	Correct	6 ms	3704 KB	Output is correct
28	Correct	6 ms	3704 KB	Output is correct
29	Correct	5 ms	3704 KB	Output is correct
30	Correct	7 ms	3704 KB	Output is correct
31	Correct	6 ms	3704 KB	Output is correct
32	Correct	5 ms	3704 KB	Output is correct
33	Correct	6 ms	3704 KB	Output is correct
34	Correct	5 ms	3704 KB	Output is correct
35	Correct	5 ms	3704 KB	Output is correct
36	Correct	5 ms	3704 KB	Output is correct
37	Correct	6 ms	3704 KB	Output is correct
38	Correct	5 ms	3704 KB	Output is correct
39	Correct	5 ms	3704 KB	Output is correct
40	Correct	5 ms	3704 KB	Output is correct
41	Correct	6 ms	3704 KB	Output is correct
42	Correct	7 ms	3704 KB	Output is correct
43	Correct	7 ms	3704 KB	Output is correct
44	Correct	7 ms	3704 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3320 KB	Output is correct
2	Correct	4 ms	3320 KB	Output is correct
3	Correct	4 ms	3380 KB	Output is correct
4	Correct	5 ms	3424 KB	Output is correct
5	Correct	5 ms	3476 KB	Output is correct
6	Correct	6 ms	3524 KB	Output is correct
7	Correct	6 ms	3544 KB	Output is correct
8	Correct	5 ms	3552 KB	Output is correct
9	Correct	4 ms	3552 KB	Output is correct
10	Correct	5 ms	3576 KB	Output is correct
11	Correct	6 ms	3576 KB	Output is correct
12	Correct	5 ms	3576 KB	Output is correct
13	Correct	5 ms	3660 KB	Output is correct
14	Correct	5 ms	3660 KB	Output is correct
15	Correct	7 ms	3660 KB	Output is correct
16	Correct	6 ms	3660 KB	Output is correct
17	Correct	6 ms	3660 KB	Output is correct
18	Correct	7 ms	3660 KB	Output is correct
19	Correct	6 ms	3660 KB	Output is correct
20	Correct	6 ms	3660 KB	Output is correct
21	Correct	7 ms	3704 KB	Output is correct
22	Correct	5 ms	3704 KB	Output is correct
23	Correct	5 ms	3704 KB	Output is correct
24	Correct	6 ms	3704 KB	Output is correct
25	Correct	7 ms	3704 KB	Output is correct
26	Correct	5 ms	3704 KB	Output is correct
27	Correct	6 ms	3704 KB	Output is correct
28	Correct	6 ms	3704 KB	Output is correct
29	Correct	5 ms	3704 KB	Output is correct
30	Correct	7 ms	3704 KB	Output is correct
31	Correct	6 ms	3704 KB	Output is correct
32	Correct	5 ms	3704 KB	Output is correct
33	Correct	6 ms	3704 KB	Output is correct
34	Correct	5 ms	3704 KB	Output is correct
35	Correct	5 ms	3704 KB	Output is correct
36	Correct	5 ms	3704 KB	Output is correct
37	Correct	6 ms	3704 KB	Output is correct
38	Correct	5 ms	3704 KB	Output is correct
39	Correct	5 ms	3704 KB	Output is correct
40	Correct	5 ms	3704 KB	Output is correct
41	Correct	6 ms	3704 KB	Output is correct
42	Correct	7 ms	3704 KB	Output is correct
43	Correct	7 ms	3704 KB	Output is correct
44	Correct	7 ms	3704 KB	Output is correct
45	Correct	7 ms	3704 KB	Output is correct
46	Correct	13 ms	4104 KB	Output is correct
47	Correct	14 ms	4104 KB	Output is correct
48	Correct	17 ms	4120 KB	Output is correct
49	Correct	15 ms	4380 KB	Output is correct
50	Correct	12 ms	4460 KB	Output is correct
51	Correct	12 ms	4480 KB	Output is correct
52	Correct	11 ms	4480 KB	Output is correct
53	Correct	11 ms	4496 KB	Output is correct
54	Correct	13 ms	4548 KB	Output is correct
55	Correct	15 ms	4576 KB	Output is correct
56	Correct	15 ms	4624 KB	Output is correct
57	Correct	18 ms	4624 KB	Output is correct
58	Correct	20 ms	4624 KB	Output is correct
59	Correct	18 ms	4624 KB	Output is correct
60	Correct	17 ms	4624 KB	Output is correct
61	Correct	12 ms	4652 KB	Output is correct
62	Correct	18 ms	4652 KB	Output is correct
63	Correct	12 ms	4652 KB	Output is correct
64	Correct	25 ms	4652 KB	Output is correct
65	Correct	13 ms	4652 KB	Output is correct
66	Correct	14 ms	4652 KB	Output is correct
67	Correct	14 ms	4652 KB	Output is correct
68	Correct	14 ms	4712 KB	Output is correct
69	Correct	9 ms	4712 KB	Output is correct
70	Correct	10 ms	4732 KB	Output is correct
71	Correct	9 ms	4760 KB	Output is correct
72	Correct	14 ms	4760 KB	Output is correct
73	Correct	14 ms	4760 KB	Output is correct
74	Correct	9 ms	4760 KB	Output is correct
75	Correct	14 ms	4760 KB	Output is correct
76	Correct	8 ms	4760 KB	Output is correct
77	Correct	15 ms	4760 KB	Output is correct
78	Correct	10 ms	4760 KB	Output is correct
79	Correct	9 ms	4760 KB	Output is correct
80	Correct	9 ms	4760 KB	Output is correct
81	Correct	10 ms	4760 KB	Output is correct
82	Correct	10 ms	4760 KB	Output is correct
83	Correct	11 ms	4760 KB	Output is correct
84	Correct	15 ms	4760 KB	Output is correct
85	Correct	10 ms	4760 KB	Output is correct
86	Correct	9 ms	4760 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	3320 KB	Output is correct
2	Correct	4 ms	3320 KB	Output is correct
3	Correct	4 ms	3380 KB	Output is correct
4	Correct	5 ms	3424 KB	Output is correct
5	Correct	5 ms	3476 KB	Output is correct
6	Correct	6 ms	3524 KB	Output is correct
7	Correct	6 ms	3544 KB	Output is correct
8	Correct	5 ms	3552 KB	Output is correct
9	Correct	4 ms	3552 KB	Output is correct
10	Correct	5 ms	3576 KB	Output is correct
11	Correct	6 ms	3576 KB	Output is correct
12	Correct	5 ms	3576 KB	Output is correct
13	Correct	5 ms	3660 KB	Output is correct
14	Correct	5 ms	3660 KB	Output is correct
15	Correct	7 ms	3660 KB	Output is correct
16	Correct	6 ms	3660 KB	Output is correct
17	Correct	6 ms	3660 KB	Output is correct
18	Correct	7 ms	3660 KB	Output is correct
19	Correct	6 ms	3660 KB	Output is correct
20	Correct	6 ms	3660 KB	Output is correct
21	Correct	7 ms	3704 KB	Output is correct
22	Correct	5 ms	3704 KB	Output is correct
23	Correct	5 ms	3704 KB	Output is correct
24	Correct	6 ms	3704 KB	Output is correct
25	Correct	7 ms	3704 KB	Output is correct
26	Correct	5 ms	3704 KB	Output is correct
27	Correct	6 ms	3704 KB	Output is correct
28	Correct	6 ms	3704 KB	Output is correct
29	Correct	5 ms	3704 KB	Output is correct
30	Correct	7 ms	3704 KB	Output is correct
31	Correct	6 ms	3704 KB	Output is correct
32	Correct	5 ms	3704 KB	Output is correct
33	Correct	6 ms	3704 KB	Output is correct
34	Correct	5 ms	3704 KB	Output is correct
35	Correct	5 ms	3704 KB	Output is correct
36	Correct	5 ms	3704 KB	Output is correct
37	Correct	6 ms	3704 KB	Output is correct
38	Correct	5 ms	3704 KB	Output is correct
39	Correct	5 ms	3704 KB	Output is correct
40	Correct	5 ms	3704 KB	Output is correct
41	Correct	6 ms	3704 KB	Output is correct
42	Correct	7 ms	3704 KB	Output is correct
43	Correct	7 ms	3704 KB	Output is correct
44	Correct	7 ms	3704 KB	Output is correct
45	Correct	7 ms	3704 KB	Output is correct
46	Correct	13 ms	4104 KB	Output is correct
47	Correct	14 ms	4104 KB	Output is correct
48	Correct	17 ms	4120 KB	Output is correct
49	Correct	15 ms	4380 KB	Output is correct
50	Correct	12 ms	4460 KB	Output is correct
51	Correct	12 ms	4480 KB	Output is correct
52	Correct	11 ms	4480 KB	Output is correct
53	Correct	11 ms	4496 KB	Output is correct
54	Correct	13 ms	4548 KB	Output is correct
55	Correct	15 ms	4576 KB	Output is correct
56	Correct	15 ms	4624 KB	Output is correct
57	Correct	18 ms	4624 KB	Output is correct
58	Correct	20 ms	4624 KB	Output is correct
59	Correct	18 ms	4624 KB	Output is correct
60	Correct	17 ms	4624 KB	Output is correct
61	Correct	12 ms	4652 KB	Output is correct
62	Correct	18 ms	4652 KB	Output is correct
63	Correct	12 ms	4652 KB	Output is correct
64	Correct	25 ms	4652 KB	Output is correct
65	Correct	13 ms	4652 KB	Output is correct
66	Correct	14 ms	4652 KB	Output is correct
67	Correct	14 ms	4652 KB	Output is correct
68	Correct	14 ms	4712 KB	Output is correct
69	Correct	9 ms	4712 KB	Output is correct
70	Correct	10 ms	4732 KB	Output is correct
71	Correct	9 ms	4760 KB	Output is correct
72	Correct	14 ms	4760 KB	Output is correct
73	Correct	14 ms	4760 KB	Output is correct
74	Correct	9 ms	4760 KB	Output is correct
75	Correct	14 ms	4760 KB	Output is correct
76	Correct	8 ms	4760 KB	Output is correct
77	Correct	15 ms	4760 KB	Output is correct
78	Correct	10 ms	4760 KB	Output is correct
79	Correct	9 ms	4760 KB	Output is correct
80	Correct	9 ms	4760 KB	Output is correct
81	Correct	10 ms	4760 KB	Output is correct
82	Correct	10 ms	4760 KB	Output is correct
83	Correct	11 ms	4760 KB	Output is correct
84	Correct	15 ms	4760 KB	Output is correct
85	Correct	10 ms	4760 KB	Output is correct
86	Correct	9 ms	4760 KB	Output is correct
87	Correct	28 ms	5548 KB	Output is correct
88	Correct	109 ms	8748 KB	Output is correct
89	Correct	374 ms	20564 KB	Output is correct
90	Correct	353 ms	22572 KB	Output is correct
91	Correct	404 ms	24848 KB	Output is correct
92	Correct	213 ms	32940 KB	Output is correct
93	Correct	269 ms	35052 KB	Output is correct
94	Correct	252 ms	37164 KB	Output is correct
95	Correct	228 ms	37164 KB	Output is correct
96	Correct	219 ms	38640 KB	Output is correct
97	Correct	267 ms	40916 KB	Output is correct
98	Correct	217 ms	42936 KB	Output is correct
99	Correct	270 ms	44352 KB	Output is correct
100	Correct	744 ms	44352 KB	Output is correct
101	Correct	604 ms	45132 KB	Output is correct
102	Correct	650 ms	47308 KB	Output is correct
103	Correct	711 ms	49336 KB	Output is correct
104	Correct	332 ms	54564 KB	Output is correct
105	Correct	273 ms	56688 KB	Output is correct
106	Correct	376 ms	58720 KB	Output is correct
107	Correct	386 ms	58720 KB	Output is correct
108	Correct	416 ms	58720 KB	Output is correct
109	Correct	416 ms	60188 KB	Output is correct
110	Correct	246 ms	67736 KB	Output is correct
111	Correct	314 ms	67736 KB	Output is correct
112	Correct	306 ms	68832 KB	Output is correct
113	Correct	312 ms	69416 KB	Output is correct
114	Correct	766 ms	69416 KB	Output is correct
115	Correct	678 ms	69748 KB	Output is correct
116	Correct	337 ms	74188 KB	Output is correct
117	Correct	268 ms	74360 KB	Output is correct
118	Correct	227 ms	75760 KB	Output is correct
119	Correct	217 ms	77348 KB	Output is correct
120	Correct	209 ms	79508 KB	Output is correct
121	Correct	218 ms	80760 KB	Output is correct
122	Correct	201 ms	81836 KB	Output is correct
123	Correct	365 ms	84580 KB	Output is correct
124	Correct	312 ms	85912 KB	Output is correct
125	Correct	356 ms	87520 KB	Output is correct
126	Correct	286 ms	89904 KB	Output is correct
127	Correct	244 ms	90872 KB	Output is correct
128	Correct	433 ms	91964 KB	Output is correct

답안 #56430

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