답안 #21921 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
21921	2017-04-27T13:59:05 Z	kriii	Fireworks (APIO16_fireworks)	C++14	100 / 100	229 ms	49280 KB

fireworks

/*
 * Author: Gyeonggeun Kim(kriii)
 * Time Complexity: O(N lg^2 N)
 */
#include <stdio.h>
#include <algorithm>
#include <queue>
using namespace std;

const int maxn = 300003;

priority_queue<long long> *Q[maxn];
int N,M,V,P[maxn],C[maxn],D[maxn]; long long E[maxn];

int main()
{
	scanf ("%d %d",&N,&M);
	V = N + M;
	
	for (int i=2;i<=V;i++) scanf ("%d %d",&P[i],&C[i]);
	for (int i=1;i<=V;i++) Q[i] = new priority_queue<long long>;

	for (int i=V;i>=2;i--){
		long long p = 0, q = 0;
		if (D[i]){
			for (int j=1;j<D[i];j++){
				E[i] += Q[i]->top(); Q[i]->pop();
			}
			p = Q[i]->top(); Q[i]->pop();
			q = Q[i]->top(); Q[i]->pop();
		}
		Q[i]->push(p+C[i]);
		Q[i]->push(q+C[i]);
		E[i] -= C[i];

		priority_queue<long long> *&a = Q[i], *&b = Q[P[i]];
		if (a->size() > b->size()) swap(a,b);
		while (!a->empty()){
			b->push(a->top()); a->pop();
		}
		E[P[i]] += E[i];
		D[P[i]]++;
	}

	long long ans = E[1];
	for (int i=0;i<D[1];i++){
		ans += Q[1]->top(); Q[1]->pop();
	}
	printf ("%lld\n",ans);

	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:17:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf ("%d %d",&N,&M);
                       ^
fireworks.cpp:20:52: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i=2;i<=V;i++) scanf ("%d %d",&P[i],&C[i]);
                                                    ^

Subtask #1
7.0 / 7.0

#	결과	메모리	Grader output
1	Correct	9376 KB	Output is correct
2	Correct	9376 KB	Output is correct
3	Correct	9376 KB	Output is correct
4	Correct	9376 KB	Output is correct
5	Correct	9376 KB	Output is correct
6	Correct	9376 KB	Output is correct
7	Correct	9376 KB	Output is correct
8	Correct	9376 KB	Output is correct
9	Correct	9376 KB	Output is correct
10	Correct	9376 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	메모리	Grader output
1	Correct	9376 KB	Output is correct
2	Correct	9376 KB	Output is correct
3	Correct	9376 KB	Output is correct
4	Correct	9376 KB	Output is correct
5	Correct	9376 KB	Output is correct
6	Correct	9376 KB	Output is correct
7	Correct	9376 KB	Output is correct
8	Correct	9376 KB	Output is correct
9	Correct	9376 KB	Output is correct
10	Correct	9376 KB	Output is correct
11	Correct	9376 KB	Output is correct
12	Correct	9376 KB	Output is correct
13	Correct	9376 KB	Output is correct
14	Correct	9376 KB	Output is correct
15	Correct	9376 KB	Output is correct
16	Correct	9376 KB	Output is correct
17	Correct	9376 KB	Output is correct
18	Correct	9376 KB	Output is correct
19	Correct	9376 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	9376 KB	Output is correct
2	Correct	0 ms	9376 KB	Output is correct
3	Correct	0 ms	9376 KB	Output is correct
4	Correct	0 ms	9376 KB	Output is correct
5	Correct	0 ms	9376 KB	Output is correct
6	Correct	0 ms	9376 KB	Output is correct
7	Correct	0 ms	9376 KB	Output is correct
8	Correct	0 ms	9376 KB	Output is correct
9	Correct	0 ms	9376 KB	Output is correct
10	Correct	0 ms	9376 KB	Output is correct
11	Correct	0 ms	9376 KB	Output is correct
12	Correct	0 ms	9376 KB	Output is correct
13	Correct	0 ms	9376 KB	Output is correct
14	Correct	0 ms	9376 KB	Output is correct
15	Correct	0 ms	9376 KB	Output is correct
16	Correct	0 ms	9376 KB	Output is correct
17	Correct	0 ms	9376 KB	Output is correct
18	Correct	0 ms	9376 KB	Output is correct
19	Correct	0 ms	9376 KB	Output is correct
20	Correct	0 ms	9376 KB	Output is correct
21	Correct	0 ms	9376 KB	Output is correct
22	Correct	0 ms	9376 KB	Output is correct
23	Correct	0 ms	9376 KB	Output is correct
24	Correct	0 ms	9376 KB	Output is correct
25	Correct	0 ms	9376 KB	Output is correct
26	Correct	0 ms	9376 KB	Output is correct
27	Correct	0 ms	9376 KB	Output is correct
28	Correct	0 ms	9376 KB	Output is correct
29	Correct	0 ms	9376 KB	Output is correct
30	Correct	0 ms	9376 KB	Output is correct
31	Correct	0 ms	9508 KB	Output is correct
32	Correct	0 ms	9508 KB	Output is correct
33	Correct	0 ms	9640 KB	Output is correct
34	Correct	0 ms	9640 KB	Output is correct
35	Correct	0 ms	9640 KB	Output is correct
36	Correct	3 ms	9784 KB	Output is correct
37	Correct	3 ms	9772 KB	Output is correct
38	Correct	3 ms	9772 KB	Output is correct
39	Correct	3 ms	9772 KB	Output is correct
40	Correct	0 ms	9640 KB	Output is correct
41	Correct	0 ms	9640 KB	Output is correct
42	Correct	0 ms	9640 KB	Output is correct
43	Correct	3 ms	9772 KB	Output is correct
44	Correct	3 ms	9772 KB	Output is correct
45	Correct	3 ms	9772 KB	Output is correct
46	Correct	3 ms	10076 KB	Output is correct
47	Correct	3 ms	10096 KB	Output is correct
48	Correct	3 ms	9916 KB	Output is correct
49	Correct	3 ms	10040 KB	Output is correct
50	Correct	3 ms	9812 KB	Output is correct
51	Correct	3 ms	9808 KB	Output is correct
52	Correct	3 ms	9960 KB	Output is correct
53	Correct	0 ms	9916 KB	Output is correct
54	Correct	3 ms	9904 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	9376 KB	Output is correct
2	Correct	0 ms	9376 KB	Output is correct
3	Correct	0 ms	9376 KB	Output is correct
4	Correct	0 ms	9376 KB	Output is correct
5	Correct	0 ms	9376 KB	Output is correct
6	Correct	0 ms	9376 KB	Output is correct
7	Correct	0 ms	9376 KB	Output is correct
8	Correct	0 ms	9376 KB	Output is correct
9	Correct	0 ms	9376 KB	Output is correct
10	Correct	0 ms	9376 KB	Output is correct
11	Correct	0 ms	9376 KB	Output is correct
12	Correct	0 ms	9376 KB	Output is correct
13	Correct	0 ms	9376 KB	Output is correct
14	Correct	0 ms	9376 KB	Output is correct
15	Correct	0 ms	9376 KB	Output is correct
16	Correct	0 ms	9376 KB	Output is correct
17	Correct	0 ms	9376 KB	Output is correct
18	Correct	0 ms	9376 KB	Output is correct
19	Correct	0 ms	9376 KB	Output is correct
20	Correct	0 ms	9376 KB	Output is correct
21	Correct	0 ms	9376 KB	Output is correct
22	Correct	0 ms	9376 KB	Output is correct
23	Correct	0 ms	9376 KB	Output is correct
24	Correct	0 ms	9376 KB	Output is correct
25	Correct	0 ms	9376 KB	Output is correct
26	Correct	0 ms	9376 KB	Output is correct
27	Correct	0 ms	9376 KB	Output is correct
28	Correct	0 ms	9376 KB	Output is correct
29	Correct	0 ms	9376 KB	Output is correct
30	Correct	0 ms	9376 KB	Output is correct
31	Correct	0 ms	9508 KB	Output is correct
32	Correct	0 ms	9508 KB	Output is correct
33	Correct	0 ms	9640 KB	Output is correct
34	Correct	0 ms	9640 KB	Output is correct
35	Correct	0 ms	9640 KB	Output is correct
36	Correct	3 ms	9784 KB	Output is correct
37	Correct	3 ms	9772 KB	Output is correct
38	Correct	3 ms	9772 KB	Output is correct
39	Correct	3 ms	9772 KB	Output is correct
40	Correct	0 ms	9640 KB	Output is correct
41	Correct	0 ms	9640 KB	Output is correct
42	Correct	0 ms	9640 KB	Output is correct
43	Correct	3 ms	9772 KB	Output is correct
44	Correct	3 ms	9772 KB	Output is correct
45	Correct	3 ms	9772 KB	Output is correct
46	Correct	3 ms	10076 KB	Output is correct
47	Correct	3 ms	10096 KB	Output is correct
48	Correct	3 ms	9916 KB	Output is correct
49	Correct	3 ms	10040 KB	Output is correct
50	Correct	3 ms	9812 KB	Output is correct
51	Correct	3 ms	9808 KB	Output is correct
52	Correct	3 ms	9960 KB	Output is correct
53	Correct	0 ms	9916 KB	Output is correct
54	Correct	3 ms	9904 KB	Output is correct
55	Correct	3 ms	10436 KB	Output is correct
56	Correct	36 ms	13780 KB	Output is correct
57	Correct	66 ms	16596 KB	Output is correct
58	Correct	73 ms	18800 KB	Output is correct
59	Correct	116 ms	21684 KB	Output is correct
60	Correct	126 ms	24564 KB	Output is correct
61	Correct	159 ms	27380 KB	Output is correct
62	Correct	169 ms	29124 KB	Output is correct
63	Correct	203 ms	32608 KB	Output is correct
64	Correct	203 ms	33372 KB	Output is correct
65	Correct	86 ms	23500 KB	Output is correct
66	Correct	93 ms	23500 KB	Output is correct
67	Correct	113 ms	23500 KB	Output is correct
68	Correct	149 ms	31284 KB	Output is correct
69	Correct	186 ms	31924 KB	Output is correct
70	Correct	189 ms	31920 KB	Output is correct
71	Correct	213 ms	49280 KB	Output is correct
72	Correct	229 ms	49108 KB	Output is correct
73	Correct	193 ms	45276 KB	Output is correct
74	Correct	193 ms	45960 KB	Output is correct
75	Correct	203 ms	45828 KB	Output is correct
76	Correct	196 ms	45884 KB	Output is correct
77	Correct	199 ms	45500 KB	Output is correct
78	Correct	186 ms	44500 KB	Output is correct
79	Correct	193 ms	43892 KB	Output is correct

답안 #21921

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