답안 #292590

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
292590	2020-09-07T10:16:28 Z	Pajaraja	Power Plant (JOI20_power)	C++17	100 / 100	412 ms	21484 KB

power

#include <bits/stdc++.h>
#define MAXN 200007
using namespace std;
int dp[MAXN],sol=0,pg[MAXN];
vector<int> g[MAXN];
void dfs(int s,int f)
{
	for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfs(g[s][i],s);
	dp[s]=pg[s];
	int sum=0;
	for(int i=0;i<g[s].size();i++) sol=max(sol,dp[g[s][i]]+pg[s]);
	for(int i=0;i<g[s].size();i++) sum+=dp[g[s][i]];
	dp[s]=max(dp[s],sum-pg[s]);
	sol=max(sol,dp[s]);
}
int main()
{
	int n;
	cin>>n;
	for(int i=0;i<n-1;i++)
	{
		int t1,t2;
		cin>>t1>>t2;
		g[t1].push_back(t2);
		g[t2].push_back(t1);
	}
	string s;
	cin>>s;
	for(int i=0;i<n;i++) pg[i+1]=s[i]-'0';
	dfs(1,1);
	cout<<sol;
}

Compilation message

power.cpp: In function 'void dfs(int, int)':
power.cpp:8:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  for(int i=0;i<g[s].size();i++) if(g[s][i]!=f) dfs(g[s][i],s);
      |              ~^~~~~~~~~~~~
power.cpp:11:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  for(int i=0;i<g[s].size();i++) sol=max(sol,dp[g[s][i]]+pg[s]);
      |              ~^~~~~~~~~~~~
power.cpp:12:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |  for(int i=0;i<g[s].size();i++) sum+=dp[g[s][i]];
      |              ~^~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	4 ms	4992 KB	Output is correct
3	Correct	3 ms	5120 KB	Output is correct
4	Correct	4 ms	4992 KB	Output is correct
5	Correct	4 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	5 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	4 ms	4992 KB	Output is correct
11	Correct	4 ms	4992 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	4 ms	4992 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	4 ms	4992 KB	Output is correct
3	Correct	3 ms	5120 KB	Output is correct
4	Correct	4 ms	4992 KB	Output is correct
5	Correct	4 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	5 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	4 ms	4992 KB	Output is correct
11	Correct	4 ms	4992 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	4 ms	4992 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	6 ms	5120 KB	Output is correct
23	Correct	6 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	6 ms	5120 KB	Output is correct
26	Correct	6 ms	5120 KB	Output is correct
27	Correct	6 ms	5120 KB	Output is correct
28	Correct	6 ms	5120 KB	Output is correct
29	Correct	6 ms	5120 KB	Output is correct
30	Correct	7 ms	5120 KB	Output is correct
31	Correct	6 ms	5120 KB	Output is correct
32	Correct	6 ms	5120 KB	Output is correct
33	Correct	6 ms	5120 KB	Output is correct
34	Correct	6 ms	5120 KB	Output is correct
35	Correct	6 ms	5120 KB	Output is correct
36	Correct	6 ms	5120 KB	Output is correct
37	Correct	6 ms	5120 KB	Output is correct
38	Correct	6 ms	5120 KB	Output is correct
39	Correct	6 ms	5248 KB	Output is correct
40	Correct	6 ms	5120 KB	Output is correct
41	Correct	6 ms	5120 KB	Output is correct
42	Correct	7 ms	5120 KB	Output is correct
43	Correct	6 ms	5120 KB	Output is correct
44	Correct	6 ms	5120 KB	Output is correct
45	Correct	6 ms	5120 KB	Output is correct
46	Correct	6 ms	5120 KB	Output is correct
47	Correct	6 ms	5120 KB	Output is correct
48	Correct	6 ms	5120 KB	Output is correct
49	Correct	6 ms	5120 KB	Output is correct
50	Correct	6 ms	5120 KB	Output is correct
51	Correct	6 ms	5120 KB	Output is correct
52	Correct	7 ms	5120 KB	Output is correct
53	Correct	6 ms	5120 KB	Output is correct
54	Correct	6 ms	5120 KB	Output is correct
55	Correct	6 ms	5120 KB	Output is correct
56	Correct	6 ms	5120 KB	Output is correct
57	Correct	6 ms	5120 KB	Output is correct
58	Correct	6 ms	5120 KB	Output is correct
59	Correct	6 ms	5120 KB	Output is correct
60	Correct	6 ms	5120 KB	Output is correct
61	Correct	6 ms	5120 KB	Output is correct
62	Correct	6 ms	5120 KB	Output is correct
63	Correct	6 ms	5120 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	4 ms	4992 KB	Output is correct
3	Correct	3 ms	5120 KB	Output is correct
4	Correct	4 ms	4992 KB	Output is correct
5	Correct	4 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	5 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	4 ms	4992 KB	Output is correct
11	Correct	4 ms	4992 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	4 ms	4992 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	4 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	4 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	6 ms	5120 KB	Output is correct
23	Correct	6 ms	5120 KB	Output is correct
24	Correct	6 ms	5120 KB	Output is correct
25	Correct	6 ms	5120 KB	Output is correct
26	Correct	6 ms	5120 KB	Output is correct
27	Correct	6 ms	5120 KB	Output is correct
28	Correct	6 ms	5120 KB	Output is correct
29	Correct	6 ms	5120 KB	Output is correct
30	Correct	7 ms	5120 KB	Output is correct
31	Correct	6 ms	5120 KB	Output is correct
32	Correct	6 ms	5120 KB	Output is correct
33	Correct	6 ms	5120 KB	Output is correct
34	Correct	6 ms	5120 KB	Output is correct
35	Correct	6 ms	5120 KB	Output is correct
36	Correct	6 ms	5120 KB	Output is correct
37	Correct	6 ms	5120 KB	Output is correct
38	Correct	6 ms	5120 KB	Output is correct
39	Correct	6 ms	5248 KB	Output is correct
40	Correct	6 ms	5120 KB	Output is correct
41	Correct	6 ms	5120 KB	Output is correct
42	Correct	7 ms	5120 KB	Output is correct
43	Correct	6 ms	5120 KB	Output is correct
44	Correct	6 ms	5120 KB	Output is correct
45	Correct	6 ms	5120 KB	Output is correct
46	Correct	6 ms	5120 KB	Output is correct
47	Correct	6 ms	5120 KB	Output is correct
48	Correct	6 ms	5120 KB	Output is correct
49	Correct	6 ms	5120 KB	Output is correct
50	Correct	6 ms	5120 KB	Output is correct
51	Correct	6 ms	5120 KB	Output is correct
52	Correct	7 ms	5120 KB	Output is correct
53	Correct	6 ms	5120 KB	Output is correct
54	Correct	6 ms	5120 KB	Output is correct
55	Correct	6 ms	5120 KB	Output is correct
56	Correct	6 ms	5120 KB	Output is correct
57	Correct	6 ms	5120 KB	Output is correct
58	Correct	6 ms	5120 KB	Output is correct
59	Correct	6 ms	5120 KB	Output is correct
60	Correct	6 ms	5120 KB	Output is correct
61	Correct	6 ms	5120 KB	Output is correct
62	Correct	6 ms	5120 KB	Output is correct
63	Correct	6 ms	5120 KB	Output is correct
64	Correct	407 ms	13448 KB	Output is correct
65	Correct	380 ms	13320 KB	Output is correct
66	Correct	398 ms	13280 KB	Output is correct
67	Correct	384 ms	13324 KB	Output is correct
68	Correct	378 ms	13384 KB	Output is correct
69	Correct	374 ms	13192 KB	Output is correct
70	Correct	382 ms	13448 KB	Output is correct
71	Correct	378 ms	13316 KB	Output is correct
72	Correct	381 ms	13320 KB	Output is correct
73	Correct	412 ms	20872 KB	Output is correct
74	Correct	401 ms	20872 KB	Output is correct
75	Correct	376 ms	13320 KB	Output is correct
76	Correct	369 ms	13320 KB	Output is correct
77	Correct	385 ms	13304 KB	Output is correct
78	Correct	390 ms	13192 KB	Output is correct
79	Correct	385 ms	13320 KB	Output is correct
80	Correct	385 ms	13320 KB	Output is correct
81	Correct	344 ms	13680 KB	Output is correct
82	Correct	378 ms	13684 KB	Output is correct
83	Correct	397 ms	16264 KB	Output is correct
84	Correct	394 ms	17544 KB	Output is correct
85	Correct	396 ms	17472 KB	Output is correct
86	Correct	388 ms	14084 KB	Output is correct
87	Correct	397 ms	13772 KB	Output is correct
88	Correct	379 ms	14344 KB	Output is correct
89	Correct	368 ms	14252 KB	Output is correct
90	Correct	371 ms	14216 KB	Output is correct
91	Correct	388 ms	14184 KB	Output is correct
92	Correct	376 ms	14536 KB	Output is correct
93	Correct	368 ms	15744 KB	Output is correct
94	Correct	364 ms	16992 KB	Output is correct
95	Correct	364 ms	16116 KB	Output is correct
96	Correct	374 ms	14984 KB	Output is correct
97	Correct	362 ms	14088 KB	Output is correct
98	Correct	366 ms	13848 KB	Output is correct
99	Correct	375 ms	13716 KB	Output is correct
100	Correct	379 ms	15496 KB	Output is correct
101	Correct	376 ms	14264 KB	Output is correct
102	Correct	374 ms	13960 KB	Output is correct
103	Correct	382 ms	13960 KB	Output is correct
104	Correct	321 ms	14060 KB	Output is correct
105	Correct	408 ms	18952 KB	Output is correct
106	Correct	299 ms	14184 KB	Output is correct
107	Correct	295 ms	14056 KB	Output is correct
108	Correct	408 ms	21320 KB	Output is correct
109	Correct	309 ms	14056 KB	Output is correct
110	Correct	402 ms	21484 KB	Output is correct
111	Correct	367 ms	13136 KB	Output is correct

답안 #292590

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 41.0 / 41.0

Subtask #3 53.0 / 53.0

Subtask #1
6.0 / 6.0

Subtask #2
41.0 / 41.0

Subtask #3
53.0 / 53.0