답안 #40845 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
40845	2018-02-09T10:04:00 Z	ssnsarang2023	Fireworks (APIO16_fireworks)	C++14	100 / 100	245 ms	132484 KB

fireworks

#include <bits/stdc++.h>

using namespace std;

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

#define SZ(x) ((int)x.size())

const int N = (int)3e5+5;

struct data {
	ll a, b;
	priority_queue<ll> *pq;
} a[N];

data merge(const data &x, const data &y) {
	data re;
	re.a = x.a + y.a;
	re.b = x.b + y.b;
	if (x.pq->size() > y.pq->size()) {
		re.pq = x.pq;
		while (y.pq->size()) {
			re.pq->push(y.pq->top());
			y.pq->pop();
		}
	} else {
		re.pq = y.pq;
		while (x.pq->size()) {
			re.pq->push(x.pq->top());
			x.pq->pop();
		}
	}
	return re;
}

int n, m, p[N];
ll c[N];

int main() {
	scanf("%d%d", &n, &m);
	for (int i = 2; i <= n+m; ++i) scanf("%d%lld", &p[i], &c[i]);
	for (int i = 1; i <= n+m; ++i) {
		a[i].pq = new priority_queue<ll>();
		a[i].a = a[i].b = 0;
	}
	for (int i = n+m; i >= n+1; --i) {
		a[i].a = 1;
		a[i].b = -c[i];
		a[i].pq->push(c[i]);
		a[i].pq->push(c[i]);
		a[p[i]] = merge(a[p[i]], a[i]);
	}
	for (int i = n; i >= 2; --i) {
		while (a[i].a > 1) {
			--a[i].a;
			a[i].b += a[i].pq->top();
			a[i].pq->pop();
		}
		ll x = a[i].pq->top();
		a[i].pq->pop();
		ll y = a[i].pq->top();
		a[i].pq->pop();
		a[i].pq->push(x + c[i]);
		a[i].pq->push(y + c[i]);
		a[i].b -= a[i].a*c[i];
		a[p[i]] = merge(a[p[i]], a[i]);
	}
	while (a[1].a > 0) {
		--a[1].a;
		a[1].b += a[1].pq->top();
		a[1].pq->pop();
	}
	printf("%lld", a[1].b);
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:42:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &n, &m);
                       ^
fireworks.cpp:43:62: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 2; i <= n+m; ++i) scanf("%d%lld", &p[i], &c[i]);
                                                              ^

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	2 ms	672 KB	Output is correct
4	Correct	2 ms	672 KB	Output is correct
5	Correct	2 ms	712 KB	Output is correct
6	Correct	2 ms	712 KB	Output is correct
7	Correct	2 ms	724 KB	Output is correct
8	Correct	2 ms	728 KB	Output is correct
9	Correct	1 ms	776 KB	Output is correct
10	Correct	2 ms	780 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1032 KB	Output is correct
2	Correct	2 ms	1032 KB	Output is correct
3	Correct	1 ms	1032 KB	Output is correct
4	Correct	2 ms	1032 KB	Output is correct
5	Correct	2 ms	1032 KB	Output is correct
6	Correct	2 ms	1032 KB	Output is correct
7	Correct	2 ms	1036 KB	Output is correct
8	Correct	2 ms	1040 KB	Output is correct
9	Correct	2 ms	1044 KB	Output is correct
10	Correct	2 ms	1052 KB	Output is correct
11	Correct	2 ms	1056 KB	Output is correct
12	Correct	2 ms	1056 KB	Output is correct
13	Correct	2 ms	1064 KB	Output is correct
14	Correct	2 ms	1068 KB	Output is correct
15	Correct	2 ms	1072 KB	Output is correct
16	Correct	2 ms	1140 KB	Output is correct
17	Correct	2 ms	1144 KB	Output is correct
18	Correct	2 ms	1144 KB	Output is correct
19	Correct	2 ms	1144 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	2 ms	672 KB	Output is correct
4	Correct	2 ms	672 KB	Output is correct
5	Correct	2 ms	712 KB	Output is correct
6	Correct	2 ms	712 KB	Output is correct
7	Correct	2 ms	724 KB	Output is correct
8	Correct	2 ms	728 KB	Output is correct
9	Correct	1 ms	776 KB	Output is correct
10	Correct	2 ms	780 KB	Output is correct
11	Correct	2 ms	1032 KB	Output is correct
12	Correct	2 ms	1032 KB	Output is correct
13	Correct	1 ms	1032 KB	Output is correct
14	Correct	2 ms	1032 KB	Output is correct
15	Correct	2 ms	1032 KB	Output is correct
16	Correct	2 ms	1032 KB	Output is correct
17	Correct	2 ms	1036 KB	Output is correct
18	Correct	2 ms	1040 KB	Output is correct
19	Correct	2 ms	1044 KB	Output is correct
20	Correct	2 ms	1052 KB	Output is correct
21	Correct	2 ms	1056 KB	Output is correct
22	Correct	2 ms	1056 KB	Output is correct
23	Correct	2 ms	1064 KB	Output is correct
24	Correct	2 ms	1068 KB	Output is correct
25	Correct	2 ms	1072 KB	Output is correct
26	Correct	2 ms	1140 KB	Output is correct
27	Correct	2 ms	1144 KB	Output is correct
28	Correct	2 ms	1144 KB	Output is correct
29	Correct	2 ms	1144 KB	Output is correct
30	Correct	2 ms	1144 KB	Output is correct
31	Correct	2 ms	1228 KB	Output is correct
32	Correct	2 ms	1260 KB	Output is correct
33	Correct	3 ms	1412 KB	Output is correct
34	Correct	3 ms	1588 KB	Output is correct
35	Correct	3 ms	1632 KB	Output is correct
36	Correct	4 ms	1812 KB	Output is correct
37	Correct	4 ms	1888 KB	Output is correct
38	Correct	6 ms	2096 KB	Output is correct
39	Correct	5 ms	2284 KB	Output is correct
40	Correct	4 ms	2284 KB	Output is correct
41	Correct	3 ms	2284 KB	Output is correct
42	Correct	3 ms	2284 KB	Output is correct
43	Correct	4 ms	2452 KB	Output is correct
44	Correct	5 ms	2544 KB	Output is correct
45	Correct	5 ms	2600 KB	Output is correct
46	Correct	5 ms	2812 KB	Output is correct
47	Correct	5 ms	2876 KB	Output is correct
48	Correct	4 ms	2876 KB	Output is correct
49	Correct	5 ms	2996 KB	Output is correct
50	Correct	5 ms	2996 KB	Output is correct
51	Correct	5 ms	2996 KB	Output is correct
52	Correct	5 ms	3048 KB	Output is correct
53	Correct	4 ms	3288 KB	Output is correct
54	Correct	5 ms	3288 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	488 KB	Output is correct
3	Correct	2 ms	672 KB	Output is correct
4	Correct	2 ms	672 KB	Output is correct
5	Correct	2 ms	712 KB	Output is correct
6	Correct	2 ms	712 KB	Output is correct
7	Correct	2 ms	724 KB	Output is correct
8	Correct	2 ms	728 KB	Output is correct
9	Correct	1 ms	776 KB	Output is correct
10	Correct	2 ms	780 KB	Output is correct
11	Correct	2 ms	1032 KB	Output is correct
12	Correct	2 ms	1032 KB	Output is correct
13	Correct	1 ms	1032 KB	Output is correct
14	Correct	2 ms	1032 KB	Output is correct
15	Correct	2 ms	1032 KB	Output is correct
16	Correct	2 ms	1032 KB	Output is correct
17	Correct	2 ms	1036 KB	Output is correct
18	Correct	2 ms	1040 KB	Output is correct
19	Correct	2 ms	1044 KB	Output is correct
20	Correct	2 ms	1052 KB	Output is correct
21	Correct	2 ms	1056 KB	Output is correct
22	Correct	2 ms	1056 KB	Output is correct
23	Correct	2 ms	1064 KB	Output is correct
24	Correct	2 ms	1068 KB	Output is correct
25	Correct	2 ms	1072 KB	Output is correct
26	Correct	2 ms	1140 KB	Output is correct
27	Correct	2 ms	1144 KB	Output is correct
28	Correct	2 ms	1144 KB	Output is correct
29	Correct	2 ms	1144 KB	Output is correct
30	Correct	2 ms	1144 KB	Output is correct
31	Correct	2 ms	1228 KB	Output is correct
32	Correct	2 ms	1260 KB	Output is correct
33	Correct	3 ms	1412 KB	Output is correct
34	Correct	3 ms	1588 KB	Output is correct
35	Correct	3 ms	1632 KB	Output is correct
36	Correct	4 ms	1812 KB	Output is correct
37	Correct	4 ms	1888 KB	Output is correct
38	Correct	6 ms	2096 KB	Output is correct
39	Correct	5 ms	2284 KB	Output is correct
40	Correct	4 ms	2284 KB	Output is correct
41	Correct	3 ms	2284 KB	Output is correct
42	Correct	3 ms	2284 KB	Output is correct
43	Correct	4 ms	2452 KB	Output is correct
44	Correct	5 ms	2544 KB	Output is correct
45	Correct	5 ms	2600 KB	Output is correct
46	Correct	5 ms	2812 KB	Output is correct
47	Correct	5 ms	2876 KB	Output is correct
48	Correct	4 ms	2876 KB	Output is correct
49	Correct	5 ms	2996 KB	Output is correct
50	Correct	5 ms	2996 KB	Output is correct
51	Correct	5 ms	2996 KB	Output is correct
52	Correct	5 ms	3048 KB	Output is correct
53	Correct	4 ms	3288 KB	Output is correct
54	Correct	5 ms	3288 KB	Output is correct
55	Correct	10 ms	4244 KB	Output is correct
56	Correct	33 ms	9388 KB	Output is correct
57	Correct	62 ms	14904 KB	Output is correct
58	Correct	78 ms	19260 KB	Output is correct
59	Correct	103 ms	25620 KB	Output is correct
60	Correct	133 ms	32520 KB	Output is correct
61	Correct	155 ms	38824 KB	Output is correct
62	Correct	177 ms	44800 KB	Output is correct
63	Correct	223 ms	54016 KB	Output is correct
64	Correct	213 ms	59800 KB	Output is correct
65	Correct	119 ms	59800 KB	Output is correct
66	Correct	109 ms	61088 KB	Output is correct
67	Correct	146 ms	66072 KB	Output is correct
68	Correct	184 ms	77736 KB	Output is correct
69	Correct	231 ms	83164 KB	Output is correct
70	Correct	210 ms	87852 KB	Output is correct
71	Correct	244 ms	107232 KB	Output is correct
72	Correct	245 ms	111800 KB	Output is correct
73	Correct	202 ms	112232 KB	Output is correct
74	Correct	217 ms	116924 KB	Output is correct
75	Correct	215 ms	119420 KB	Output is correct
76	Correct	222 ms	123092 KB	Output is correct
77	Correct	231 ms	126136 KB	Output is correct
78	Correct	233 ms	129704 KB	Output is correct
79	Correct	225 ms	132484 KB	Output is correct

답안 #40845

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