답안 #56432 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
56432	2018-07-11T10:05:50 Z	ics0503	Construction of Highway (JOI18_construction)	C++17	100 / 100	742 ms	26172 KB

construction

#include<stdio.h>
#include<vector>
using namespace std;
int par[121212][20], num[121212], S[121212], E[121212], cnt, tn, depth[121212], A[121212], B[121212], C[121212], CSD[121212];
vector<int>edge[121212];
struct xy { int x, y; }tree[313131], temp[121212];
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>>=1; e>>=1;
	}
	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 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;
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, 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, i, j; scanf("%d", &n);
	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:22:20: 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:47:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n, i, j; scanf("%d", &n);
               ~~~~~^~~~~~~~~~
construction.cpp:50:31: 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:53:18: 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	6 ms	3192 KB	Output is correct
2	Correct	3 ms	3304 KB	Output is correct
3	Correct	5 ms	3304 KB	Output is correct
4	Correct	4 ms	3304 KB	Output is correct
5	Correct	5 ms	3412 KB	Output is correct
6	Correct	4 ms	3420 KB	Output is correct
7	Correct	7 ms	3624 KB	Output is correct
8	Correct	4 ms	3624 KB	Output is correct
9	Correct	4 ms	3624 KB	Output is correct
10	Correct	7 ms	3624 KB	Output is correct
11	Correct	4 ms	3624 KB	Output is correct
12	Correct	5 ms	3624 KB	Output is correct
13	Correct	4 ms	3624 KB	Output is correct
14	Correct	4 ms	3624 KB	Output is correct
15	Correct	5 ms	3680 KB	Output is correct
16	Correct	5 ms	3680 KB	Output is correct
17	Correct	6 ms	3680 KB	Output is correct
18	Correct	5 ms	3680 KB	Output is correct
19	Correct	4 ms	3680 KB	Output is correct
20	Correct	5 ms	3680 KB	Output is correct
21	Correct	4 ms	3680 KB	Output is correct
22	Correct	4 ms	3680 KB	Output is correct
23	Correct	5 ms	3680 KB	Output is correct
24	Correct	6 ms	3680 KB	Output is correct
25	Correct	7 ms	3680 KB	Output is correct
26	Correct	5 ms	3680 KB	Output is correct
27	Correct	5 ms	3680 KB	Output is correct
28	Correct	6 ms	3680 KB	Output is correct
29	Correct	5 ms	3680 KB	Output is correct
30	Correct	6 ms	3680 KB	Output is correct
31	Correct	7 ms	3680 KB	Output is correct
32	Correct	5 ms	3680 KB	Output is correct
33	Correct	5 ms	3680 KB	Output is correct
34	Correct	6 ms	3680 KB	Output is correct
35	Correct	4 ms	3680 KB	Output is correct
36	Correct	6 ms	3680 KB	Output is correct
37	Correct	5 ms	3680 KB	Output is correct
38	Correct	5 ms	3680 KB	Output is correct
39	Correct	4 ms	3680 KB	Output is correct
40	Correct	6 ms	3680 KB	Output is correct
41	Correct	6 ms	3696 KB	Output is correct
42	Correct	6 ms	3696 KB	Output is correct
43	Correct	5 ms	3696 KB	Output is correct
44	Correct	6 ms	3696 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	3192 KB	Output is correct
2	Correct	3 ms	3304 KB	Output is correct
3	Correct	5 ms	3304 KB	Output is correct
4	Correct	4 ms	3304 KB	Output is correct
5	Correct	5 ms	3412 KB	Output is correct
6	Correct	4 ms	3420 KB	Output is correct
7	Correct	7 ms	3624 KB	Output is correct
8	Correct	4 ms	3624 KB	Output is correct
9	Correct	4 ms	3624 KB	Output is correct
10	Correct	7 ms	3624 KB	Output is correct
11	Correct	4 ms	3624 KB	Output is correct
12	Correct	5 ms	3624 KB	Output is correct
13	Correct	4 ms	3624 KB	Output is correct
14	Correct	4 ms	3624 KB	Output is correct
15	Correct	5 ms	3680 KB	Output is correct
16	Correct	5 ms	3680 KB	Output is correct
17	Correct	6 ms	3680 KB	Output is correct
18	Correct	5 ms	3680 KB	Output is correct
19	Correct	4 ms	3680 KB	Output is correct
20	Correct	5 ms	3680 KB	Output is correct
21	Correct	4 ms	3680 KB	Output is correct
22	Correct	4 ms	3680 KB	Output is correct
23	Correct	5 ms	3680 KB	Output is correct
24	Correct	6 ms	3680 KB	Output is correct
25	Correct	7 ms	3680 KB	Output is correct
26	Correct	5 ms	3680 KB	Output is correct
27	Correct	5 ms	3680 KB	Output is correct
28	Correct	6 ms	3680 KB	Output is correct
29	Correct	5 ms	3680 KB	Output is correct
30	Correct	6 ms	3680 KB	Output is correct
31	Correct	7 ms	3680 KB	Output is correct
32	Correct	5 ms	3680 KB	Output is correct
33	Correct	5 ms	3680 KB	Output is correct
34	Correct	6 ms	3680 KB	Output is correct
35	Correct	4 ms	3680 KB	Output is correct
36	Correct	6 ms	3680 KB	Output is correct
37	Correct	5 ms	3680 KB	Output is correct
38	Correct	5 ms	3680 KB	Output is correct
39	Correct	4 ms	3680 KB	Output is correct
40	Correct	6 ms	3680 KB	Output is correct
41	Correct	6 ms	3696 KB	Output is correct
42	Correct	6 ms	3696 KB	Output is correct
43	Correct	5 ms	3696 KB	Output is correct
44	Correct	6 ms	3696 KB	Output is correct
45	Correct	8 ms	3696 KB	Output is correct
46	Correct	10 ms	4128 KB	Output is correct
47	Correct	12 ms	4128 KB	Output is correct
48	Correct	15 ms	4128 KB	Output is correct
49	Correct	11 ms	4380 KB	Output is correct
50	Correct	10 ms	4400 KB	Output is correct
51	Correct	14 ms	4400 KB	Output is correct
52	Correct	8 ms	4400 KB	Output is correct
53	Correct	9 ms	4400 KB	Output is correct
54	Correct	13 ms	4400 KB	Output is correct
55	Correct	10 ms	4400 KB	Output is correct
56	Correct	12 ms	4400 KB	Output is correct
57	Correct	15 ms	4400 KB	Output is correct
58	Correct	20 ms	4400 KB	Output is correct
59	Correct	18 ms	4400 KB	Output is correct
60	Correct	19 ms	4400 KB	Output is correct
61	Correct	14 ms	4400 KB	Output is correct
62	Correct	11 ms	4400 KB	Output is correct
63	Correct	11 ms	4400 KB	Output is correct
64	Correct	13 ms	4400 KB	Output is correct
65	Correct	10 ms	4400 KB	Output is correct
66	Correct	10 ms	4400 KB	Output is correct
67	Correct	10 ms	4400 KB	Output is correct
68	Correct	8 ms	4412 KB	Output is correct
69	Correct	16 ms	4412 KB	Output is correct
70	Correct	10 ms	4412 KB	Output is correct
71	Correct	8 ms	4412 KB	Output is correct
72	Correct	17 ms	4412 KB	Output is correct
73	Correct	17 ms	4412 KB	Output is correct
74	Correct	12 ms	4412 KB	Output is correct
75	Correct	14 ms	4412 KB	Output is correct
76	Correct	11 ms	4412 KB	Output is correct
77	Correct	12 ms	4412 KB	Output is correct
78	Correct	11 ms	4412 KB	Output is correct
79	Correct	9 ms	4412 KB	Output is correct
80	Correct	9 ms	4412 KB	Output is correct
81	Correct	12 ms	4412 KB	Output is correct
82	Correct	11 ms	4412 KB	Output is correct
83	Correct	11 ms	4412 KB	Output is correct
84	Correct	11 ms	4412 KB	Output is correct
85	Correct	12 ms	4412 KB	Output is correct
86	Correct	11 ms	4412 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	3192 KB	Output is correct
2	Correct	3 ms	3304 KB	Output is correct
3	Correct	5 ms	3304 KB	Output is correct
4	Correct	4 ms	3304 KB	Output is correct
5	Correct	5 ms	3412 KB	Output is correct
6	Correct	4 ms	3420 KB	Output is correct
7	Correct	7 ms	3624 KB	Output is correct
8	Correct	4 ms	3624 KB	Output is correct
9	Correct	4 ms	3624 KB	Output is correct
10	Correct	7 ms	3624 KB	Output is correct
11	Correct	4 ms	3624 KB	Output is correct
12	Correct	5 ms	3624 KB	Output is correct
13	Correct	4 ms	3624 KB	Output is correct
14	Correct	4 ms	3624 KB	Output is correct
15	Correct	5 ms	3680 KB	Output is correct
16	Correct	5 ms	3680 KB	Output is correct
17	Correct	6 ms	3680 KB	Output is correct
18	Correct	5 ms	3680 KB	Output is correct
19	Correct	4 ms	3680 KB	Output is correct
20	Correct	5 ms	3680 KB	Output is correct
21	Correct	4 ms	3680 KB	Output is correct
22	Correct	4 ms	3680 KB	Output is correct
23	Correct	5 ms	3680 KB	Output is correct
24	Correct	6 ms	3680 KB	Output is correct
25	Correct	7 ms	3680 KB	Output is correct
26	Correct	5 ms	3680 KB	Output is correct
27	Correct	5 ms	3680 KB	Output is correct
28	Correct	6 ms	3680 KB	Output is correct
29	Correct	5 ms	3680 KB	Output is correct
30	Correct	6 ms	3680 KB	Output is correct
31	Correct	7 ms	3680 KB	Output is correct
32	Correct	5 ms	3680 KB	Output is correct
33	Correct	5 ms	3680 KB	Output is correct
34	Correct	6 ms	3680 KB	Output is correct
35	Correct	4 ms	3680 KB	Output is correct
36	Correct	6 ms	3680 KB	Output is correct
37	Correct	5 ms	3680 KB	Output is correct
38	Correct	5 ms	3680 KB	Output is correct
39	Correct	4 ms	3680 KB	Output is correct
40	Correct	6 ms	3680 KB	Output is correct
41	Correct	6 ms	3696 KB	Output is correct
42	Correct	6 ms	3696 KB	Output is correct
43	Correct	5 ms	3696 KB	Output is correct
44	Correct	6 ms	3696 KB	Output is correct
45	Correct	8 ms	3696 KB	Output is correct
46	Correct	10 ms	4128 KB	Output is correct
47	Correct	12 ms	4128 KB	Output is correct
48	Correct	15 ms	4128 KB	Output is correct
49	Correct	11 ms	4380 KB	Output is correct
50	Correct	10 ms	4400 KB	Output is correct
51	Correct	14 ms	4400 KB	Output is correct
52	Correct	8 ms	4400 KB	Output is correct
53	Correct	9 ms	4400 KB	Output is correct
54	Correct	13 ms	4400 KB	Output is correct
55	Correct	10 ms	4400 KB	Output is correct
56	Correct	12 ms	4400 KB	Output is correct
57	Correct	15 ms	4400 KB	Output is correct
58	Correct	20 ms	4400 KB	Output is correct
59	Correct	18 ms	4400 KB	Output is correct
60	Correct	19 ms	4400 KB	Output is correct
61	Correct	14 ms	4400 KB	Output is correct
62	Correct	11 ms	4400 KB	Output is correct
63	Correct	11 ms	4400 KB	Output is correct
64	Correct	13 ms	4400 KB	Output is correct
65	Correct	10 ms	4400 KB	Output is correct
66	Correct	10 ms	4400 KB	Output is correct
67	Correct	10 ms	4400 KB	Output is correct
68	Correct	8 ms	4412 KB	Output is correct
69	Correct	16 ms	4412 KB	Output is correct
70	Correct	10 ms	4412 KB	Output is correct
71	Correct	8 ms	4412 KB	Output is correct
72	Correct	17 ms	4412 KB	Output is correct
73	Correct	17 ms	4412 KB	Output is correct
74	Correct	12 ms	4412 KB	Output is correct
75	Correct	14 ms	4412 KB	Output is correct
76	Correct	11 ms	4412 KB	Output is correct
77	Correct	12 ms	4412 KB	Output is correct
78	Correct	11 ms	4412 KB	Output is correct
79	Correct	9 ms	4412 KB	Output is correct
80	Correct	9 ms	4412 KB	Output is correct
81	Correct	12 ms	4412 KB	Output is correct
82	Correct	11 ms	4412 KB	Output is correct
83	Correct	11 ms	4412 KB	Output is correct
84	Correct	11 ms	4412 KB	Output is correct
85	Correct	12 ms	4412 KB	Output is correct
86	Correct	11 ms	4412 KB	Output is correct
87	Correct	30 ms	5180 KB	Output is correct
88	Correct	92 ms	8508 KB	Output is correct
89	Correct	409 ms	20156 KB	Output is correct
90	Correct	384 ms	20156 KB	Output is correct
91	Correct	374 ms	20156 KB	Output is correct
92	Correct	211 ms	26172 KB	Output is correct
93	Correct	214 ms	26172 KB	Output is correct
94	Correct	251 ms	26172 KB	Output is correct
95	Correct	257 ms	26172 KB	Output is correct
96	Correct	315 ms	26172 KB	Output is correct
97	Correct	255 ms	26172 KB	Output is correct
98	Correct	285 ms	26172 KB	Output is correct
99	Correct	246 ms	26172 KB	Output is correct
100	Correct	742 ms	26172 KB	Output is correct
101	Correct	656 ms	26172 KB	Output is correct
102	Correct	625 ms	26172 KB	Output is correct
103	Correct	660 ms	26172 KB	Output is correct
104	Correct	311 ms	26172 KB	Output is correct
105	Correct	369 ms	26172 KB	Output is correct
106	Correct	335 ms	26172 KB	Output is correct
107	Correct	349 ms	26172 KB	Output is correct
108	Correct	351 ms	26172 KB	Output is correct
109	Correct	448 ms	26172 KB	Output is correct
110	Correct	215 ms	26172 KB	Output is correct
111	Correct	225 ms	26172 KB	Output is correct
112	Correct	224 ms	26172 KB	Output is correct
113	Correct	308 ms	26172 KB	Output is correct
114	Correct	650 ms	26172 KB	Output is correct
115	Correct	737 ms	26172 KB	Output is correct
116	Correct	306 ms	26172 KB	Output is correct
117	Correct	231 ms	26172 KB	Output is correct
118	Correct	268 ms	26172 KB	Output is correct
119	Correct	204 ms	26172 KB	Output is correct
120	Correct	215 ms	26172 KB	Output is correct
121	Correct	190 ms	26172 KB	Output is correct
122	Correct	191 ms	26172 KB	Output is correct
123	Correct	285 ms	26172 KB	Output is correct
124	Correct	340 ms	26172 KB	Output is correct
125	Correct	320 ms	26172 KB	Output is correct
126	Correct	303 ms	26172 KB	Output is correct
127	Correct	301 ms	26172 KB	Output is correct
128	Correct	298 ms	26172 KB	Output is correct

답안 #56432

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