답안 #153951

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
153951	2019-09-17T14:50:07 Z	songc	Fireworks (APIO16_fireworks)	C++14	100 / 100	367 ms	75876 KB

fireworks

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<int,int> pii;

int N, M;
LL C[303030], S[303030], Y[303030];
vector<int> adj[303030];
priority_queue<LL> PQ[303030];

void dfs(int u){
	if (adj[u].empty()){
		S[u] = -1, Y[u] = C[u];
		PQ[u].push(C[u]);
		PQ[u].push(C[u]);
		return;
	}

	for (int v : adj[u]){
		dfs(v);
		S[u] += S[v], Y[u] += Y[v];
		if (PQ[u].size() < PQ[v].size()) swap(PQ[u], PQ[v]);
		while (!PQ[v].empty()){
			PQ[u].push(PQ[v].top());
			PQ[v].pop();
		}
	}

	LL a=-1, b=-1;
	Y[u] += C[u];
	while (S[u] + PQ[u].size() > 1) PQ[u].pop();
	if (S[u] + PQ[u].size() == 1) a=PQ[u].top(), PQ[u].pop();
	if (S[u] + PQ[u].size() == 0) b=PQ[u].top(), PQ[u].pop();
	if (a != -1) PQ[u].push(a+C[u]);
	if (b != -1) PQ[u].push(b+C[u]);
}

int main(){
	scanf("%d %d", &N, &M);
	for (int i=2; i<=N+M; i++){
		int p;
		scanf("%d %lld", &p, &C[i]);
		adj[p].push_back(i);
	}
	dfs(1);
	LL x = PQ[1].top();
	PQ[1].pop();
	PQ[1].push(0);
	for (int i=0; !PQ[1].empty(); i++){
		Y[1] -= i * (x - PQ[1].top());
		x = PQ[1].top();
		PQ[1].pop();
	}
	printf("%lld\n", Y[1]);
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:39:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~~
fireworks.cpp:42:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %lld", &p, &C[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	17016 KB	Output is correct
2	Correct	17 ms	16888 KB	Output is correct
3	Correct	17 ms	16888 KB	Output is correct
4	Correct	18 ms	16888 KB	Output is correct
5	Correct	18 ms	17016 KB	Output is correct
6	Correct	18 ms	17016 KB	Output is correct
7	Correct	18 ms	17016 KB	Output is correct
8	Correct	18 ms	17016 KB	Output is correct
9	Correct	18 ms	16888 KB	Output is correct
10	Correct	18 ms	16888 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	17 ms	16888 KB	Output is correct
2	Correct	18 ms	16888 KB	Output is correct
3	Correct	19 ms	17016 KB	Output is correct
4	Correct	18 ms	17020 KB	Output is correct
5	Correct	19 ms	17016 KB	Output is correct
6	Correct	18 ms	17016 KB	Output is correct
7	Correct	18 ms	16888 KB	Output is correct
8	Correct	18 ms	16888 KB	Output is correct
9	Correct	17 ms	17016 KB	Output is correct
10	Correct	17 ms	17020 KB	Output is correct
11	Correct	18 ms	16888 KB	Output is correct
12	Correct	18 ms	16888 KB	Output is correct
13	Correct	18 ms	17016 KB	Output is correct
14	Correct	25 ms	17016 KB	Output is correct
15	Correct	18 ms	17016 KB	Output is correct
16	Correct	18 ms	17016 KB	Output is correct
17	Correct	18 ms	17016 KB	Output is correct
18	Correct	22 ms	16888 KB	Output is correct
19	Correct	22 ms	17016 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	17016 KB	Output is correct
2	Correct	17 ms	16888 KB	Output is correct
3	Correct	17 ms	16888 KB	Output is correct
4	Correct	18 ms	16888 KB	Output is correct
5	Correct	18 ms	17016 KB	Output is correct
6	Correct	18 ms	17016 KB	Output is correct
7	Correct	18 ms	17016 KB	Output is correct
8	Correct	18 ms	17016 KB	Output is correct
9	Correct	18 ms	16888 KB	Output is correct
10	Correct	18 ms	16888 KB	Output is correct
11	Correct	17 ms	16888 KB	Output is correct
12	Correct	18 ms	16888 KB	Output is correct
13	Correct	19 ms	17016 KB	Output is correct
14	Correct	18 ms	17020 KB	Output is correct
15	Correct	19 ms	17016 KB	Output is correct
16	Correct	18 ms	17016 KB	Output is correct
17	Correct	18 ms	16888 KB	Output is correct
18	Correct	18 ms	16888 KB	Output is correct
19	Correct	17 ms	17016 KB	Output is correct
20	Correct	17 ms	17020 KB	Output is correct
21	Correct	18 ms	16888 KB	Output is correct
22	Correct	18 ms	16888 KB	Output is correct
23	Correct	18 ms	17016 KB	Output is correct
24	Correct	25 ms	17016 KB	Output is correct
25	Correct	18 ms	17016 KB	Output is correct
26	Correct	18 ms	17016 KB	Output is correct
27	Correct	18 ms	17016 KB	Output is correct
28	Correct	22 ms	16888 KB	Output is correct
29	Correct	22 ms	17016 KB	Output is correct
30	Correct	18 ms	17144 KB	Output is correct
31	Correct	18 ms	17016 KB	Output is correct
32	Correct	19 ms	17144 KB	Output is correct
33	Correct	20 ms	17144 KB	Output is correct
34	Correct	20 ms	17144 KB	Output is correct
35	Correct	21 ms	17272 KB	Output is correct
36	Correct	21 ms	17272 KB	Output is correct
37	Correct	21 ms	17400 KB	Output is correct
38	Correct	22 ms	17400 KB	Output is correct
39	Correct	22 ms	17400 KB	Output is correct
40	Correct	24 ms	18040 KB	Output is correct
41	Correct	21 ms	17912 KB	Output is correct
42	Correct	20 ms	17272 KB	Output is correct
43	Correct	22 ms	17656 KB	Output is correct
44	Correct	22 ms	17528 KB	Output is correct
45	Correct	22 ms	17528 KB	Output is correct
46	Correct	22 ms	17400 KB	Output is correct
47	Correct	22 ms	17400 KB	Output is correct
48	Correct	21 ms	17400 KB	Output is correct
49	Correct	22 ms	17456 KB	Output is correct
50	Correct	21 ms	17272 KB	Output is correct
51	Correct	21 ms	17236 KB	Output is correct
52	Correct	21 ms	17272 KB	Output is correct
53	Correct	22 ms	17528 KB	Output is correct
54	Correct	22 ms	17400 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	17016 KB	Output is correct
2	Correct	17 ms	16888 KB	Output is correct
3	Correct	17 ms	16888 KB	Output is correct
4	Correct	18 ms	16888 KB	Output is correct
5	Correct	18 ms	17016 KB	Output is correct
6	Correct	18 ms	17016 KB	Output is correct
7	Correct	18 ms	17016 KB	Output is correct
8	Correct	18 ms	17016 KB	Output is correct
9	Correct	18 ms	16888 KB	Output is correct
10	Correct	18 ms	16888 KB	Output is correct
11	Correct	17 ms	16888 KB	Output is correct
12	Correct	18 ms	16888 KB	Output is correct
13	Correct	19 ms	17016 KB	Output is correct
14	Correct	18 ms	17020 KB	Output is correct
15	Correct	19 ms	17016 KB	Output is correct
16	Correct	18 ms	17016 KB	Output is correct
17	Correct	18 ms	16888 KB	Output is correct
18	Correct	18 ms	16888 KB	Output is correct
19	Correct	17 ms	17016 KB	Output is correct
20	Correct	17 ms	17020 KB	Output is correct
21	Correct	18 ms	16888 KB	Output is correct
22	Correct	18 ms	16888 KB	Output is correct
23	Correct	18 ms	17016 KB	Output is correct
24	Correct	25 ms	17016 KB	Output is correct
25	Correct	18 ms	17016 KB	Output is correct
26	Correct	18 ms	17016 KB	Output is correct
27	Correct	18 ms	17016 KB	Output is correct
28	Correct	22 ms	16888 KB	Output is correct
29	Correct	22 ms	17016 KB	Output is correct
30	Correct	18 ms	17144 KB	Output is correct
31	Correct	18 ms	17016 KB	Output is correct
32	Correct	19 ms	17144 KB	Output is correct
33	Correct	20 ms	17144 KB	Output is correct
34	Correct	20 ms	17144 KB	Output is correct
35	Correct	21 ms	17272 KB	Output is correct
36	Correct	21 ms	17272 KB	Output is correct
37	Correct	21 ms	17400 KB	Output is correct
38	Correct	22 ms	17400 KB	Output is correct
39	Correct	22 ms	17400 KB	Output is correct
40	Correct	24 ms	18040 KB	Output is correct
41	Correct	21 ms	17912 KB	Output is correct
42	Correct	20 ms	17272 KB	Output is correct
43	Correct	22 ms	17656 KB	Output is correct
44	Correct	22 ms	17528 KB	Output is correct
45	Correct	22 ms	17528 KB	Output is correct
46	Correct	22 ms	17400 KB	Output is correct
47	Correct	22 ms	17400 KB	Output is correct
48	Correct	21 ms	17400 KB	Output is correct
49	Correct	22 ms	17456 KB	Output is correct
50	Correct	21 ms	17272 KB	Output is correct
51	Correct	21 ms	17236 KB	Output is correct
52	Correct	21 ms	17272 KB	Output is correct
53	Correct	22 ms	17528 KB	Output is correct
54	Correct	22 ms	17400 KB	Output is correct
55	Correct	28 ms	18040 KB	Output is correct
56	Correct	63 ms	21212 KB	Output is correct
57	Correct	107 ms	24176 KB	Output is correct
58	Correct	167 ms	26224 KB	Output is correct
59	Correct	194 ms	29336 KB	Output is correct
60	Correct	222 ms	32208 KB	Output is correct
61	Correct	251 ms	34804 KB	Output is correct
62	Correct	297 ms	36484 KB	Output is correct
63	Correct	367 ms	40208 KB	Output is correct
64	Correct	354 ms	41380 KB	Output is correct
65	Correct	175 ms	75804 KB	Output is correct
66	Correct	175 ms	75876 KB	Output is correct
67	Correct	201 ms	38520 KB	Output is correct
68	Correct	253 ms	58184 KB	Output is correct
69	Correct	353 ms	55052 KB	Output is correct
70	Correct	333 ms	55028 KB	Output is correct
71	Correct	323 ms	50784 KB	Output is correct
72	Correct	323 ms	51044 KB	Output is correct
73	Correct	269 ms	47324 KB	Output is correct
74	Correct	271 ms	47496 KB	Output is correct
75	Correct	268 ms	46112 KB	Output is correct
76	Correct	268 ms	46308 KB	Output is correct
77	Correct	269 ms	45528 KB	Output is correct
78	Correct	274 ms	43868 KB	Output is correct
79	Correct	270 ms	44544 KB	Output is correct

답안 #153951

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 19.0 / 19.0

Subtask #3 29.0 / 29.0

Subtask #4 45.0 / 45.0

Subtask #1
7.0 / 7.0

Subtask #2
19.0 / 19.0

Subtask #3
29.0 / 29.0

Subtask #4
45.0 / 45.0