답안 #254587

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
254587	2020-07-30T09:58:56 Z	maximath_1	Fireworks (APIO16_fireworks)	C++11	100 / 100	305 ms	70904 KB

fireworks

#include<bits/stdc++.h>
using namespace std;
#define ll long long
struct slop{
	ll a, b;
	priority_queue<ll>pq;
	slop& operator+=(slop& x){
		a+=x.a; b+=x.b;
		if(x.pq.size()>pq.size())
			swap(pq, x.pq);
		for(;!x.pq.empty();x.pq.pop())
			pq.push(x.pq.top());
		return *this;
	}
}f[300005];
ll cst[300005];
vector<int>adj[300005];
void dfs(int nw){
	if(adj[nw].size()==0){ //leaf
		f[nw].a=1; f[nw].b=-cst[nw];
		f[nw].pq.push(cst[nw]);
		f[nw].pq.push(cst[nw]);
		return;
	}
	for(int nx:adj[nw]){
		dfs(nx);
		f[nw]+=f[nx];
	}
	//>1 useless, reduce
	for(;f[nw].a>1;){ 
		f[nw].a-=1;
		f[nw].b+=f[nw].pq.top();
		f[nw].pq.pop();
	}
	//shift 0 and 1
	ll fi=f[nw].pq.top()+cst[nw]; f[nw].pq.pop();
	ll sc=f[nw].pq.top()+cst[nw]; f[nw].pq.pop();
	f[nw].pq.push(fi); f[nw].pq.push(sc);
	//after shift, reduce b
	f[nw].b-=cst[nw];
}
int main(){
	int n, m; scanf("%d%d", &n, &m);
	for(int i=2, bf; i<=n+m; i++){
		scanf("%d%lld", &bf, &cst[i]);
		adj[bf].push_back(i);
	}
	dfs(1);
	printf("%lld\n", f[1].a*f[1].pq.top()+f[1].b);
	return 0;
}

Compilation message

fireworks.cpp: In function 'int main()':
fireworks.cpp:43:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int n, m; scanf("%d%d", &n, &m);
            ~~~~~^~~~~~~~~~~~~~~~
fireworks.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%lld", &bf, &cst[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	21504 KB	Output is correct
2	Correct	12 ms	21504 KB	Output is correct
3	Correct	12 ms	21504 KB	Output is correct
4	Correct	12 ms	21504 KB	Output is correct
5	Correct	12 ms	21504 KB	Output is correct
6	Correct	15 ms	21504 KB	Output is correct
7	Correct	12 ms	21504 KB	Output is correct
8	Correct	12 ms	21504 KB	Output is correct
9	Correct	12 ms	21504 KB	Output is correct
10	Correct	12 ms	21504 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	11 ms	21504 KB	Output is correct
2	Correct	12 ms	21504 KB	Output is correct
3	Correct	12 ms	21504 KB	Output is correct
4	Correct	13 ms	21504 KB	Output is correct
5	Correct	12 ms	21504 KB	Output is correct
6	Correct	12 ms	21504 KB	Output is correct
7	Correct	12 ms	21504 KB	Output is correct
8	Correct	12 ms	21504 KB	Output is correct
9	Correct	12 ms	21504 KB	Output is correct
10	Correct	13 ms	21504 KB	Output is correct
11	Correct	17 ms	21504 KB	Output is correct
12	Correct	15 ms	21504 KB	Output is correct
13	Correct	12 ms	21504 KB	Output is correct
14	Correct	15 ms	21632 KB	Output is correct
15	Correct	13 ms	21504 KB	Output is correct
16	Correct	13 ms	21504 KB	Output is correct
17	Correct	12 ms	21504 KB	Output is correct
18	Correct	12 ms	21504 KB	Output is correct
19	Correct	13 ms	21428 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	21504 KB	Output is correct
2	Correct	12 ms	21504 KB	Output is correct
3	Correct	12 ms	21504 KB	Output is correct
4	Correct	12 ms	21504 KB	Output is correct
5	Correct	12 ms	21504 KB	Output is correct
6	Correct	15 ms	21504 KB	Output is correct
7	Correct	12 ms	21504 KB	Output is correct
8	Correct	12 ms	21504 KB	Output is correct
9	Correct	12 ms	21504 KB	Output is correct
10	Correct	12 ms	21504 KB	Output is correct
11	Correct	11 ms	21504 KB	Output is correct
12	Correct	12 ms	21504 KB	Output is correct
13	Correct	12 ms	21504 KB	Output is correct
14	Correct	13 ms	21504 KB	Output is correct
15	Correct	12 ms	21504 KB	Output is correct
16	Correct	12 ms	21504 KB	Output is correct
17	Correct	12 ms	21504 KB	Output is correct
18	Correct	12 ms	21504 KB	Output is correct
19	Correct	12 ms	21504 KB	Output is correct
20	Correct	13 ms	21504 KB	Output is correct
21	Correct	17 ms	21504 KB	Output is correct
22	Correct	15 ms	21504 KB	Output is correct
23	Correct	12 ms	21504 KB	Output is correct
24	Correct	15 ms	21632 KB	Output is correct
25	Correct	13 ms	21504 KB	Output is correct
26	Correct	13 ms	21504 KB	Output is correct
27	Correct	12 ms	21504 KB	Output is correct
28	Correct	12 ms	21504 KB	Output is correct
29	Correct	13 ms	21428 KB	Output is correct
30	Correct	13 ms	21504 KB	Output is correct
31	Correct	14 ms	21504 KB	Output is correct
32	Correct	16 ms	21632 KB	Output is correct
33	Correct	14 ms	21636 KB	Output is correct
34	Correct	16 ms	21624 KB	Output is correct
35	Correct	15 ms	21760 KB	Output is correct
36	Correct	16 ms	21760 KB	Output is correct
37	Correct	15 ms	21760 KB	Output is correct
38	Correct	17 ms	21888 KB	Output is correct
39	Correct	18 ms	21760 KB	Output is correct
40	Correct	14 ms	22272 KB	Output is correct
41	Correct	17 ms	22272 KB	Output is correct
42	Correct	16 ms	21760 KB	Output is correct
43	Correct	15 ms	22016 KB	Output is correct
44	Correct	16 ms	21888 KB	Output is correct
45	Correct	16 ms	22016 KB	Output is correct
46	Correct	17 ms	21888 KB	Output is correct
47	Correct	17 ms	21888 KB	Output is correct
48	Correct	17 ms	21760 KB	Output is correct
49	Correct	17 ms	21888 KB	Output is correct
50	Correct	14 ms	21760 KB	Output is correct
51	Correct	15 ms	21760 KB	Output is correct
52	Correct	14 ms	21760 KB	Output is correct
53	Correct	17 ms	21888 KB	Output is correct
54	Correct	17 ms	21888 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	21504 KB	Output is correct
2	Correct	12 ms	21504 KB	Output is correct
3	Correct	12 ms	21504 KB	Output is correct
4	Correct	12 ms	21504 KB	Output is correct
5	Correct	12 ms	21504 KB	Output is correct
6	Correct	15 ms	21504 KB	Output is correct
7	Correct	12 ms	21504 KB	Output is correct
8	Correct	12 ms	21504 KB	Output is correct
9	Correct	12 ms	21504 KB	Output is correct
10	Correct	12 ms	21504 KB	Output is correct
11	Correct	11 ms	21504 KB	Output is correct
12	Correct	12 ms	21504 KB	Output is correct
13	Correct	12 ms	21504 KB	Output is correct
14	Correct	13 ms	21504 KB	Output is correct
15	Correct	12 ms	21504 KB	Output is correct
16	Correct	12 ms	21504 KB	Output is correct
17	Correct	12 ms	21504 KB	Output is correct
18	Correct	12 ms	21504 KB	Output is correct
19	Correct	12 ms	21504 KB	Output is correct
20	Correct	13 ms	21504 KB	Output is correct
21	Correct	17 ms	21504 KB	Output is correct
22	Correct	15 ms	21504 KB	Output is correct
23	Correct	12 ms	21504 KB	Output is correct
24	Correct	15 ms	21632 KB	Output is correct
25	Correct	13 ms	21504 KB	Output is correct
26	Correct	13 ms	21504 KB	Output is correct
27	Correct	12 ms	21504 KB	Output is correct
28	Correct	12 ms	21504 KB	Output is correct
29	Correct	13 ms	21428 KB	Output is correct
30	Correct	13 ms	21504 KB	Output is correct
31	Correct	14 ms	21504 KB	Output is correct
32	Correct	16 ms	21632 KB	Output is correct
33	Correct	14 ms	21636 KB	Output is correct
34	Correct	16 ms	21624 KB	Output is correct
35	Correct	15 ms	21760 KB	Output is correct
36	Correct	16 ms	21760 KB	Output is correct
37	Correct	15 ms	21760 KB	Output is correct
38	Correct	17 ms	21888 KB	Output is correct
39	Correct	18 ms	21760 KB	Output is correct
40	Correct	14 ms	22272 KB	Output is correct
41	Correct	17 ms	22272 KB	Output is correct
42	Correct	16 ms	21760 KB	Output is correct
43	Correct	15 ms	22016 KB	Output is correct
44	Correct	16 ms	21888 KB	Output is correct
45	Correct	16 ms	22016 KB	Output is correct
46	Correct	17 ms	21888 KB	Output is correct
47	Correct	17 ms	21888 KB	Output is correct
48	Correct	17 ms	21760 KB	Output is correct
49	Correct	17 ms	21888 KB	Output is correct
50	Correct	14 ms	21760 KB	Output is correct
51	Correct	15 ms	21760 KB	Output is correct
52	Correct	14 ms	21760 KB	Output is correct
53	Correct	17 ms	21888 KB	Output is correct
54	Correct	17 ms	21888 KB	Output is correct
55	Correct	27 ms	22520 KB	Output is correct
56	Correct	50 ms	24952 KB	Output is correct
57	Correct	95 ms	27380 KB	Output is correct
58	Correct	109 ms	28996 KB	Output is correct
59	Correct	170 ms	31472 KB	Output is correct
60	Correct	176 ms	34156 KB	Output is correct
61	Correct	220 ms	36208 KB	Output is correct
62	Correct	229 ms	37488 KB	Output is correct
63	Correct	294 ms	40536 KB	Output is correct
64	Correct	305 ms	41324 KB	Output is correct
65	Correct	151 ms	70904 KB	Output is correct
66	Correct	144 ms	70904 KB	Output is correct
67	Correct	152 ms	38212 KB	Output is correct
68	Correct	209 ms	55784 KB	Output is correct
69	Correct	233 ms	53100 KB	Output is correct
70	Correct	230 ms	53224 KB	Output is correct
71	Correct	239 ms	50660 KB	Output is correct
72	Correct	238 ms	51044 KB	Output is correct
73	Correct	198 ms	47072 KB	Output is correct
74	Correct	201 ms	47200 KB	Output is correct
75	Correct	207 ms	46052 KB	Output is correct
76	Correct	204 ms	46188 KB	Output is correct
77	Correct	211 ms	45800 KB	Output is correct
78	Correct	204 ms	43748 KB	Output is correct
79	Correct	197 ms	45044 KB	Output is correct

답안 #254587

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