답안 #56332 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
56332	2018-07-11T05:20:31 Z	khsoo01(#2109)	Construction of Highway (JOI18_construction)	C++11	100 / 100	1655 ms	22196 KB

construction

#include<bits/stdc++.h>
#define X first
#define Y second
using namespace std;
typedef pair<int,int> pii;

const int N = 100005, L = 131072, G = 17, inf = 1e9;

int n, x[N], a[N], b[N];
int sp[N][G], dep[N], s[N], e[N], cc;

vector<int> adj[N], cpr;
vector<pii> act;

struct maxseg {
	int v[4*N];
	void upd (int P, int V) {
		P += L;
		while(P) {
			v[P] = max(v[P], V);
			P /= 2;
		}
	}
	int get (int S, int E) {
		S += L;
		E += L;
		int R = 0;
		while(S <= E) {
			if(S%2 == 1) R = max(R, v[S++]);
			if(E%2 == 0) R = max(R, v[E--]);
			S /= 2;
			E /= 2;
		}
		return R;
	}
	int lb (int S, int V) {
		S += L;
		while(true) {
			if(v[S] > V) break;
			S = (S - 1) / 2;
		}
		while(S < L) {
			S = 2*S + (v[2*S+1] > V);
		}
		return S - L;
	}
	int rb (int S, int V) {
		S += L;
		while(true) {
			if(v[S] > V) break;
			S = (S + 1) / 2;
		}
		while(S < L) {
			S = 2*S+1 - (v[2*S] > V);
		}
		return S - L;
	}
} ms;

struct sumseg {
	int v[4*N];
	void upd (int P, int V) {
		P += L;
		while(P) {
			v[P] += V;
			P /= 2;
		}
	}
	int get (int S, int E) {
		S += L;
		E += L;
		int R = 0;
		while(S <= E) {
			if(S%2 == 1) R += v[S++];
			if(E%2 == 0) R += v[E--];
			S /= 2;
			E /= 2;
		}
		return R;
	}
} ss;

void calc (int I) {
	s[I] = ++cc;
	for(auto &T : adj[I]) {
		sp[T][0] = I;
		dep[T] = dep[I] + 1;
		calc(T);
	}
	e[I] = cc;
}

int main()
{
	scanf("%d",&n);
	ms.upd(0, inf);
	ms.upd(n+1, inf);
	for(int i=1;i<=n;i++) {
		scanf("%d",&x[i]);
		cpr.push_back(x[i]);
	}
	sort(cpr.begin(), cpr.end());
	cpr.erase(unique(cpr.begin(), cpr.end()), cpr.end());
	for(int i=1;i<=n;i++) {
		x[i] = lower_bound(cpr.begin(), cpr.end(), x[i]) - cpr.begin();
	}
	b[0] = 1;
	for(int i=1;i<n;i++) {
		scanf("%d%d",&a[i],&b[i]);
		adj[a[i]].push_back(b[i]);
	}
	dep[1] = 1;
	calc(1);
	for(int i=1;i<G;i++) {
		for(int j=1;j<=n;j++) {
			sp[j][i] = sp[sp[j][i-1]][i-1];
		}
	}
	for(int i=1;i<n;i++) {
		long long ans = 0;
		for(int C = a[i], T; C; C = T) {
			int V = ms.get(s[C], e[C]);
			int S = ms.lb(s[C], V) + 1;
			int E = ms.rb(e[C], V) - 1;
			T = C;
			for(int j=G;j--;) {
				int P = sp[T][j];
				if(S <= s[P] && e[P] <= E) T = P;
			}
			T = sp[T][0];
			int A = x[b[V]], B = dep[C] - dep[T];
			ans += 1ll * B * ss.get(0, A-1);
			ss.upd(A, B);
			act.push_back({A, B});
		}
		printf("%lld\n",ans);
		for(auto &T : act) {
			int A, B;
			tie(A, B) = T;
			ss.upd(A, -B);
		}
		act.clear();
		ms.upd(s[b[i]], i);
	}
}

Compilation message

construction.cpp: In function 'int main()':
construction.cpp:95:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
construction.cpp:99:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&x[i]);
   ~~~~~^~~~~~~~~~~~
construction.cpp:109:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a[i],&b[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	2808 KB	Output is correct
2	Correct	6 ms	2808 KB	Output is correct
3	Correct	6 ms	2996 KB	Output is correct
4	Correct	5 ms	3000 KB	Output is correct
5	Correct	6 ms	3184 KB	Output is correct
6	Correct	7 ms	3184 KB	Output is correct
7	Correct	6 ms	3184 KB	Output is correct
8	Correct	6 ms	3184 KB	Output is correct
9	Correct	7 ms	3184 KB	Output is correct
10	Correct	7 ms	3184 KB	Output is correct
11	Correct	6 ms	3184 KB	Output is correct
12	Correct	7 ms	3184 KB	Output is correct
13	Correct	6 ms	3184 KB	Output is correct
14	Correct	7 ms	3184 KB	Output is correct
15	Correct	7 ms	3184 KB	Output is correct
16	Correct	8 ms	3184 KB	Output is correct
17	Correct	10 ms	3184 KB	Output is correct
18	Correct	8 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	7 ms	3184 KB	Output is correct
21	Correct	7 ms	3184 KB	Output is correct
22	Correct	7 ms	3184 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	6 ms	3184 KB	Output is correct
25	Correct	7 ms	3184 KB	Output is correct
26	Correct	6 ms	3184 KB	Output is correct
27	Correct	6 ms	3184 KB	Output is correct
28	Correct	6 ms	3184 KB	Output is correct
29	Correct	6 ms	3184 KB	Output is correct
30	Correct	5 ms	3184 KB	Output is correct
31	Correct	5 ms	3184 KB	Output is correct
32	Correct	4 ms	3184 KB	Output is correct
33	Correct	4 ms	3184 KB	Output is correct
34	Correct	4 ms	3184 KB	Output is correct
35	Correct	4 ms	3184 KB	Output is correct
36	Correct	4 ms	3184 KB	Output is correct
37	Correct	7 ms	3184 KB	Output is correct
38	Correct	4 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	6 ms	3184 KB	Output is correct
41	Correct	4 ms	3184 KB	Output is correct
42	Correct	4 ms	3184 KB	Output is correct
43	Correct	5 ms	3184 KB	Output is correct
44	Correct	5 ms	3184 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	2808 KB	Output is correct
2	Correct	6 ms	2808 KB	Output is correct
3	Correct	6 ms	2996 KB	Output is correct
4	Correct	5 ms	3000 KB	Output is correct
5	Correct	6 ms	3184 KB	Output is correct
6	Correct	7 ms	3184 KB	Output is correct
7	Correct	6 ms	3184 KB	Output is correct
8	Correct	6 ms	3184 KB	Output is correct
9	Correct	7 ms	3184 KB	Output is correct
10	Correct	7 ms	3184 KB	Output is correct
11	Correct	6 ms	3184 KB	Output is correct
12	Correct	7 ms	3184 KB	Output is correct
13	Correct	6 ms	3184 KB	Output is correct
14	Correct	7 ms	3184 KB	Output is correct
15	Correct	7 ms	3184 KB	Output is correct
16	Correct	8 ms	3184 KB	Output is correct
17	Correct	10 ms	3184 KB	Output is correct
18	Correct	8 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	7 ms	3184 KB	Output is correct
21	Correct	7 ms	3184 KB	Output is correct
22	Correct	7 ms	3184 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	6 ms	3184 KB	Output is correct
25	Correct	7 ms	3184 KB	Output is correct
26	Correct	6 ms	3184 KB	Output is correct
27	Correct	6 ms	3184 KB	Output is correct
28	Correct	6 ms	3184 KB	Output is correct
29	Correct	6 ms	3184 KB	Output is correct
30	Correct	5 ms	3184 KB	Output is correct
31	Correct	5 ms	3184 KB	Output is correct
32	Correct	4 ms	3184 KB	Output is correct
33	Correct	4 ms	3184 KB	Output is correct
34	Correct	4 ms	3184 KB	Output is correct
35	Correct	4 ms	3184 KB	Output is correct
36	Correct	4 ms	3184 KB	Output is correct
37	Correct	7 ms	3184 KB	Output is correct
38	Correct	4 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	6 ms	3184 KB	Output is correct
41	Correct	4 ms	3184 KB	Output is correct
42	Correct	4 ms	3184 KB	Output is correct
43	Correct	5 ms	3184 KB	Output is correct
44	Correct	5 ms	3184 KB	Output is correct
45	Correct	6 ms	3196 KB	Output is correct
46	Correct	14 ms	3580 KB	Output is correct
47	Correct	14 ms	3708 KB	Output is correct
48	Correct	19 ms	3708 KB	Output is correct
49	Correct	10 ms	3848 KB	Output is correct
50	Correct	10 ms	3868 KB	Output is correct
51	Correct	10 ms	3868 KB	Output is correct
52	Correct	10 ms	3868 KB	Output is correct
53	Correct	10 ms	3868 KB	Output is correct
54	Correct	11 ms	3868 KB	Output is correct
55	Correct	10 ms	3896 KB	Output is correct
56	Correct	13 ms	3896 KB	Output is correct
57	Correct	24 ms	3896 KB	Output is correct
58	Correct	20 ms	3896 KB	Output is correct
59	Correct	30 ms	3896 KB	Output is correct
60	Correct	19 ms	3896 KB	Output is correct
61	Correct	12 ms	3896 KB	Output is correct
62	Correct	15 ms	3896 KB	Output is correct
63	Correct	11 ms	3896 KB	Output is correct
64	Correct	14 ms	3896 KB	Output is correct
65	Correct	12 ms	3896 KB	Output is correct
66	Correct	13 ms	3896 KB	Output is correct
67	Correct	13 ms	3896 KB	Output is correct
68	Correct	9 ms	3896 KB	Output is correct
69	Correct	10 ms	3896 KB	Output is correct
70	Correct	10 ms	3896 KB	Output is correct
71	Correct	10 ms	3896 KB	Output is correct
72	Correct	19 ms	3896 KB	Output is correct
73	Correct	17 ms	3896 KB	Output is correct
74	Correct	16 ms	3896 KB	Output is correct
75	Correct	14 ms	3896 KB	Output is correct
76	Correct	14 ms	3896 KB	Output is correct
77	Correct	14 ms	3896 KB	Output is correct
78	Correct	11 ms	3896 KB	Output is correct
79	Correct	12 ms	3896 KB	Output is correct
80	Correct	21 ms	3896 KB	Output is correct
81	Correct	21 ms	3896 KB	Output is correct
82	Correct	17 ms	3896 KB	Output is correct
83	Correct	13 ms	3896 KB	Output is correct
84	Correct	17 ms	3896 KB	Output is correct
85	Correct	16 ms	3896 KB	Output is correct
86	Correct	15 ms	3896 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	2808 KB	Output is correct
2	Correct	6 ms	2808 KB	Output is correct
3	Correct	6 ms	2996 KB	Output is correct
4	Correct	5 ms	3000 KB	Output is correct
5	Correct	6 ms	3184 KB	Output is correct
6	Correct	7 ms	3184 KB	Output is correct
7	Correct	6 ms	3184 KB	Output is correct
8	Correct	6 ms	3184 KB	Output is correct
9	Correct	7 ms	3184 KB	Output is correct
10	Correct	7 ms	3184 KB	Output is correct
11	Correct	6 ms	3184 KB	Output is correct
12	Correct	7 ms	3184 KB	Output is correct
13	Correct	6 ms	3184 KB	Output is correct
14	Correct	7 ms	3184 KB	Output is correct
15	Correct	7 ms	3184 KB	Output is correct
16	Correct	8 ms	3184 KB	Output is correct
17	Correct	10 ms	3184 KB	Output is correct
18	Correct	8 ms	3184 KB	Output is correct
19	Correct	5 ms	3184 KB	Output is correct
20	Correct	7 ms	3184 KB	Output is correct
21	Correct	7 ms	3184 KB	Output is correct
22	Correct	7 ms	3184 KB	Output is correct
23	Correct	3 ms	3184 KB	Output is correct
24	Correct	6 ms	3184 KB	Output is correct
25	Correct	7 ms	3184 KB	Output is correct
26	Correct	6 ms	3184 KB	Output is correct
27	Correct	6 ms	3184 KB	Output is correct
28	Correct	6 ms	3184 KB	Output is correct
29	Correct	6 ms	3184 KB	Output is correct
30	Correct	5 ms	3184 KB	Output is correct
31	Correct	5 ms	3184 KB	Output is correct
32	Correct	4 ms	3184 KB	Output is correct
33	Correct	4 ms	3184 KB	Output is correct
34	Correct	4 ms	3184 KB	Output is correct
35	Correct	4 ms	3184 KB	Output is correct
36	Correct	4 ms	3184 KB	Output is correct
37	Correct	7 ms	3184 KB	Output is correct
38	Correct	4 ms	3184 KB	Output is correct
39	Correct	6 ms	3184 KB	Output is correct
40	Correct	6 ms	3184 KB	Output is correct
41	Correct	4 ms	3184 KB	Output is correct
42	Correct	4 ms	3184 KB	Output is correct
43	Correct	5 ms	3184 KB	Output is correct
44	Correct	5 ms	3184 KB	Output is correct
45	Correct	6 ms	3196 KB	Output is correct
46	Correct	14 ms	3580 KB	Output is correct
47	Correct	14 ms	3708 KB	Output is correct
48	Correct	19 ms	3708 KB	Output is correct
49	Correct	10 ms	3848 KB	Output is correct
50	Correct	10 ms	3868 KB	Output is correct
51	Correct	10 ms	3868 KB	Output is correct
52	Correct	10 ms	3868 KB	Output is correct
53	Correct	10 ms	3868 KB	Output is correct
54	Correct	11 ms	3868 KB	Output is correct
55	Correct	10 ms	3896 KB	Output is correct
56	Correct	13 ms	3896 KB	Output is correct
57	Correct	24 ms	3896 KB	Output is correct
58	Correct	20 ms	3896 KB	Output is correct
59	Correct	30 ms	3896 KB	Output is correct
60	Correct	19 ms	3896 KB	Output is correct
61	Correct	12 ms	3896 KB	Output is correct
62	Correct	15 ms	3896 KB	Output is correct
63	Correct	11 ms	3896 KB	Output is correct
64	Correct	14 ms	3896 KB	Output is correct
65	Correct	12 ms	3896 KB	Output is correct
66	Correct	13 ms	3896 KB	Output is correct
67	Correct	13 ms	3896 KB	Output is correct
68	Correct	9 ms	3896 KB	Output is correct
69	Correct	10 ms	3896 KB	Output is correct
70	Correct	10 ms	3896 KB	Output is correct
71	Correct	10 ms	3896 KB	Output is correct
72	Correct	19 ms	3896 KB	Output is correct
73	Correct	17 ms	3896 KB	Output is correct
74	Correct	16 ms	3896 KB	Output is correct
75	Correct	14 ms	3896 KB	Output is correct
76	Correct	14 ms	3896 KB	Output is correct
77	Correct	14 ms	3896 KB	Output is correct
78	Correct	11 ms	3896 KB	Output is correct
79	Correct	12 ms	3896 KB	Output is correct
80	Correct	21 ms	3896 KB	Output is correct
81	Correct	21 ms	3896 KB	Output is correct
82	Correct	17 ms	3896 KB	Output is correct
83	Correct	13 ms	3896 KB	Output is correct
84	Correct	17 ms	3896 KB	Output is correct
85	Correct	16 ms	3896 KB	Output is correct
86	Correct	15 ms	3896 KB	Output is correct
87	Correct	38 ms	4412 KB	Output is correct
88	Correct	177 ms	7136 KB	Output is correct
89	Correct	787 ms	16060 KB	Output is correct
90	Correct	706 ms	16060 KB	Output is correct
91	Correct	771 ms	16060 KB	Output is correct
92	Correct	447 ms	22188 KB	Output is correct
93	Correct	411 ms	22196 KB	Output is correct
94	Correct	421 ms	22196 KB	Output is correct
95	Correct	408 ms	22196 KB	Output is correct
96	Correct	516 ms	22196 KB	Output is correct
97	Correct	481 ms	22196 KB	Output is correct
98	Correct	483 ms	22196 KB	Output is correct
99	Correct	487 ms	22196 KB	Output is correct
100	Correct	1427 ms	22196 KB	Output is correct
101	Correct	1623 ms	22196 KB	Output is correct
102	Correct	1655 ms	22196 KB	Output is correct
103	Correct	1481 ms	22196 KB	Output is correct
104	Correct	574 ms	22196 KB	Output is correct
105	Correct	549 ms	22196 KB	Output is correct
106	Correct	545 ms	22196 KB	Output is correct
107	Correct	627 ms	22196 KB	Output is correct
108	Correct	688 ms	22196 KB	Output is correct
109	Correct	802 ms	22196 KB	Output is correct
110	Correct	346 ms	22196 KB	Output is correct
111	Correct	443 ms	22196 KB	Output is correct
112	Correct	437 ms	22196 KB	Output is correct
113	Correct	382 ms	22196 KB	Output is correct
114	Correct	1345 ms	22196 KB	Output is correct
115	Correct	1309 ms	22196 KB	Output is correct
116	Correct	577 ms	22196 KB	Output is correct
117	Correct	408 ms	22196 KB	Output is correct
118	Correct	426 ms	22196 KB	Output is correct
119	Correct	400 ms	22196 KB	Output is correct
120	Correct	403 ms	22196 KB	Output is correct
121	Correct	365 ms	22196 KB	Output is correct
122	Correct	351 ms	22196 KB	Output is correct
123	Correct	548 ms	22196 KB	Output is correct
124	Correct	542 ms	22196 KB	Output is correct
125	Correct	531 ms	22196 KB	Output is correct
126	Correct	397 ms	22196 KB	Output is correct
127	Correct	311 ms	22196 KB	Output is correct
128	Correct	351 ms	22196 KB	Output is correct

답안 #56332

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