답안 #794257

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
794257	2023-07-26T11:30:44 Z	IvanJ	Fireworks (APIO16_fireworks)	C++17	100 / 100	143 ms	58944 KB

fireworks

#include<bits/stdc++.h>

#define pb push_back
#define x first
#define y second
#define all(a) (a).begin(), (a).end()

using namespace std;

typedef long long ll;
typedef pair<int, int> ii;

const int maxn = 3e5 + 5;

struct Data {
	ll a, b;
	priority_queue<ll> *s;
	
	Data operator +(Data d) {
		Data ret;
		ret.a = a + d.a;
		ret.b = b + d.b;
		if(s->size() > d.s->size()) {
			ret.s = s;
			while(d.s->size()) 	
				ret.s->push(d.s->top()), d.s->pop();
		} else {
			ret.s = d.s;
			while(s->size()) 
				ret.s->push(s->top()), s->pop();
		}
		return ret;
	}
	
	ll get_min() {
		while(a > 0)
			a--, b += s->top(), s->pop();
		return b;
	}
};

int n, m;
int p[maxn];
ll c[maxn];
Data D[maxn];
vector<pair<int, ll>> adj[maxn];

int main() {
	scanf("%d%d", &n, &m);
	for(int i = 1;i < n + m;i++)
		scanf("%d%lld", p + i, c + i), p[i]--;
	
	for(int i = 0;i < n + m;i++) 
		D[i].a = 0, D[i].b = 0, D[i].s = new priority_queue<ll>;
	
	for(int i = n;i < n + m;i++) {
		D[i].a = 1, D[i].b = -c[i];
		D[i].s->push(c[i]);
		D[i].s->push(c[i]);
		D[p[i]] = D[p[i]] + D[i];
	}
	
	for(int i = n - 1;i > 0;i--) {
		while(D[i].a > 1) {
			D[i].a--;
			D[i].b += D[i].s->top();
			D[i].s->pop();
		}
		ll x = D[i].s->top();D[i].s->pop();
		ll y = D[i].s->top();D[i].s->pop();
		D[i].s->push(x + c[i]);
		D[i].s->push(y + c[i]);
		D[i].b -= c[i];
		D[p[i]] = D[p[i]] + D[i];
	} 
	printf("%lld\n", D[0].get_min());
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:49:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   49 |  scanf("%d%d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~
fireworks.cpp:51:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   51 |   scanf("%d%lld", p + i, c + i), p[i]--;
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7380 KB	Output is correct
2	Correct	3 ms	7360 KB	Output is correct
3	Correct	4 ms	7380 KB	Output is correct
4	Correct	3 ms	7380 KB	Output is correct
5	Correct	4 ms	7380 KB	Output is correct
6	Correct	3 ms	7380 KB	Output is correct
7	Correct	3 ms	7380 KB	Output is correct
8	Correct	4 ms	7364 KB	Output is correct
9	Correct	5 ms	7360 KB	Output is correct
10	Correct	4 ms	7356 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7360 KB	Output is correct
2	Correct	4 ms	7380 KB	Output is correct
3	Correct	3 ms	7380 KB	Output is correct
4	Correct	5 ms	7360 KB	Output is correct
5	Correct	4 ms	7380 KB	Output is correct
6	Correct	4 ms	7380 KB	Output is correct
7	Correct	3 ms	7352 KB	Output is correct
8	Correct	4 ms	7356 KB	Output is correct
9	Correct	3 ms	7380 KB	Output is correct
10	Correct	4 ms	7380 KB	Output is correct
11	Correct	4 ms	7356 KB	Output is correct
12	Correct	5 ms	7360 KB	Output is correct
13	Correct	4 ms	7356 KB	Output is correct
14	Correct	4 ms	7380 KB	Output is correct
15	Correct	4 ms	7360 KB	Output is correct
16	Correct	4 ms	7380 KB	Output is correct
17	Correct	4 ms	7380 KB	Output is correct
18	Correct	3 ms	7360 KB	Output is correct
19	Correct	4 ms	7380 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7380 KB	Output is correct
2	Correct	3 ms	7360 KB	Output is correct
3	Correct	4 ms	7380 KB	Output is correct
4	Correct	3 ms	7380 KB	Output is correct
5	Correct	4 ms	7380 KB	Output is correct
6	Correct	3 ms	7380 KB	Output is correct
7	Correct	3 ms	7380 KB	Output is correct
8	Correct	4 ms	7364 KB	Output is correct
9	Correct	5 ms	7360 KB	Output is correct
10	Correct	4 ms	7356 KB	Output is correct
11	Correct	4 ms	7360 KB	Output is correct
12	Correct	4 ms	7380 KB	Output is correct
13	Correct	3 ms	7380 KB	Output is correct
14	Correct	5 ms	7360 KB	Output is correct
15	Correct	4 ms	7380 KB	Output is correct
16	Correct	4 ms	7380 KB	Output is correct
17	Correct	3 ms	7352 KB	Output is correct
18	Correct	4 ms	7356 KB	Output is correct
19	Correct	3 ms	7380 KB	Output is correct
20	Correct	4 ms	7380 KB	Output is correct
21	Correct	4 ms	7356 KB	Output is correct
22	Correct	5 ms	7360 KB	Output is correct
23	Correct	4 ms	7356 KB	Output is correct
24	Correct	4 ms	7380 KB	Output is correct
25	Correct	4 ms	7360 KB	Output is correct
26	Correct	4 ms	7380 KB	Output is correct
27	Correct	4 ms	7380 KB	Output is correct
28	Correct	3 ms	7360 KB	Output is correct
29	Correct	4 ms	7380 KB	Output is correct
30	Correct	3 ms	7356 KB	Output is correct
31	Correct	5 ms	7488 KB	Output is correct
32	Correct	4 ms	7508 KB	Output is correct
33	Correct	5 ms	7628 KB	Output is correct
34	Correct	4 ms	7624 KB	Output is correct
35	Correct	4 ms	7764 KB	Output is correct
36	Correct	6 ms	7848 KB	Output is correct
37	Correct	6 ms	7892 KB	Output is correct
38	Correct	5 ms	7892 KB	Output is correct
39	Correct	5 ms	8020 KB	Output is correct
40	Correct	5 ms	7752 KB	Output is correct
41	Correct	4 ms	7764 KB	Output is correct
42	Correct	5 ms	7824 KB	Output is correct
43	Correct	5 ms	7888 KB	Output is correct
44	Correct	5 ms	7880 KB	Output is correct
45	Correct	5 ms	7956 KB	Output is correct
46	Correct	5 ms	8148 KB	Output is correct
47	Correct	6 ms	8148 KB	Output is correct
48	Correct	5 ms	8020 KB	Output is correct
49	Correct	5 ms	8148 KB	Output is correct
50	Correct	5 ms	8012 KB	Output is correct
51	Correct	7 ms	8012 KB	Output is correct
52	Correct	6 ms	8072 KB	Output is correct
53	Correct	5 ms	8008 KB	Output is correct
54	Correct	6 ms	8020 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	7380 KB	Output is correct
2	Correct	3 ms	7360 KB	Output is correct
3	Correct	4 ms	7380 KB	Output is correct
4	Correct	3 ms	7380 KB	Output is correct
5	Correct	4 ms	7380 KB	Output is correct
6	Correct	3 ms	7380 KB	Output is correct
7	Correct	3 ms	7380 KB	Output is correct
8	Correct	4 ms	7364 KB	Output is correct
9	Correct	5 ms	7360 KB	Output is correct
10	Correct	4 ms	7356 KB	Output is correct
11	Correct	4 ms	7360 KB	Output is correct
12	Correct	4 ms	7380 KB	Output is correct
13	Correct	3 ms	7380 KB	Output is correct
14	Correct	5 ms	7360 KB	Output is correct
15	Correct	4 ms	7380 KB	Output is correct
16	Correct	4 ms	7380 KB	Output is correct
17	Correct	3 ms	7352 KB	Output is correct
18	Correct	4 ms	7356 KB	Output is correct
19	Correct	3 ms	7380 KB	Output is correct
20	Correct	4 ms	7380 KB	Output is correct
21	Correct	4 ms	7356 KB	Output is correct
22	Correct	5 ms	7360 KB	Output is correct
23	Correct	4 ms	7356 KB	Output is correct
24	Correct	4 ms	7380 KB	Output is correct
25	Correct	4 ms	7360 KB	Output is correct
26	Correct	4 ms	7380 KB	Output is correct
27	Correct	4 ms	7380 KB	Output is correct
28	Correct	3 ms	7360 KB	Output is correct
29	Correct	4 ms	7380 KB	Output is correct
30	Correct	3 ms	7356 KB	Output is correct
31	Correct	5 ms	7488 KB	Output is correct
32	Correct	4 ms	7508 KB	Output is correct
33	Correct	5 ms	7628 KB	Output is correct
34	Correct	4 ms	7624 KB	Output is correct
35	Correct	4 ms	7764 KB	Output is correct
36	Correct	6 ms	7848 KB	Output is correct
37	Correct	6 ms	7892 KB	Output is correct
38	Correct	5 ms	7892 KB	Output is correct
39	Correct	5 ms	8020 KB	Output is correct
40	Correct	5 ms	7752 KB	Output is correct
41	Correct	4 ms	7764 KB	Output is correct
42	Correct	5 ms	7824 KB	Output is correct
43	Correct	5 ms	7888 KB	Output is correct
44	Correct	5 ms	7880 KB	Output is correct
45	Correct	5 ms	7956 KB	Output is correct
46	Correct	5 ms	8148 KB	Output is correct
47	Correct	6 ms	8148 KB	Output is correct
48	Correct	5 ms	8020 KB	Output is correct
49	Correct	5 ms	8148 KB	Output is correct
50	Correct	5 ms	8012 KB	Output is correct
51	Correct	7 ms	8012 KB	Output is correct
52	Correct	6 ms	8072 KB	Output is correct
53	Correct	5 ms	8008 KB	Output is correct
54	Correct	6 ms	8020 KB	Output is correct
55	Correct	8 ms	9020 KB	Output is correct
56	Correct	21 ms	14012 KB	Output is correct
57	Correct	34 ms	18600 KB	Output is correct
58	Correct	46 ms	21796 KB	Output is correct
59	Correct	61 ms	26456 KB	Output is correct
60	Correct	87 ms	31164 KB	Output is correct
61	Correct	92 ms	34876 KB	Output is correct
62	Correct	102 ms	37516 KB	Output is correct
63	Correct	128 ms	43328 KB	Output is correct
64	Correct	142 ms	45104 KB	Output is correct
65	Correct	69 ms	36808 KB	Output is correct
66	Correct	79 ms	36928 KB	Output is correct
67	Correct	68 ms	36812 KB	Output is correct
68	Correct	113 ms	43552 KB	Output is correct
69	Correct	118 ms	44240 KB	Output is correct
70	Correct	120 ms	44124 KB	Output is correct
71	Correct	143 ms	58932 KB	Output is correct
72	Correct	139 ms	58944 KB	Output is correct
73	Correct	123 ms	55484 KB	Output is correct
74	Correct	125 ms	56036 KB	Output is correct
75	Correct	127 ms	54200 KB	Output is correct
76	Correct	127 ms	54436 KB	Output is correct
77	Correct	134 ms	53576 KB	Output is correct
78	Correct	135 ms	52920 KB	Output is correct
79	Correct	129 ms	51880 KB	Output is correct

답안 #794257

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