답안 #918702

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
918702	2024-01-30T09:29:00 Z	waldi	Power Plant (JOI20_power)	C++17	100 / 100	145 ms	35852 KB

power

#include <bits/stdc++.h>
#define FOR(i,p,k) for(int i=(p);i<=(k);++i)
#define REP(i,n) FOR(i,0,(n)-1)
#define ssize(x) (int(x.size()))
#define all(x) (x).begin(),(x).end()
using namespace std;

int main(){
	int n;
	scanf("%d", &n);
	vector<vector<int>> g(n+1);
	REP(i, n-1){
		int a, b;
		scanf("%d%d", &a, &b);
		g[a].emplace_back(b);
		g[b].emplace_back(a);
	}
	vector<int> czy(n+1);
	scanf("\n");
	FOR(i, 1, n){
		char c;
		scanf("%c", &c);
		czy[i] = c=='1';
	}
	
	vector<int> oj(n+1);
	vector<int> dp = czy;
	function<void(int, int)> dfs = [&](int w, int o){
		int t = -czy[w];
		for(int i : g[w]) if(i != o) oj[i] = w, dfs(i, w), t += dp[i];
		dp[w] = max(dp[w], t);
	};
	dfs(1, 0);
	int wyn = dp[1];
	FOR(i, 2, n) wyn = max(wyn, dp[i]+czy[oj[i]]);
	printf("%d", wyn);
	return 0;
}

Compilation message

power.cpp: In function 'int main()':
power.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
power.cpp:14:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |   scanf("%d%d", &a, &b);
      |   ~~~~~^~~~~~~~~~~~~~~~
power.cpp:19:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |  scanf("\n");
      |  ~~~~~^~~~~~
power.cpp:22:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |   scanf("%c", &c);
      |   ~~~~~^~~~~~~~~~

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	500 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	0 ms	344 KB	Output is correct

Subtask #2
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	500 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	0 ms	344 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	552 KB	Output is correct
25	Correct	1 ms	600 KB	Output is correct
26	Correct	1 ms	444 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	604 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	564 KB	Output is correct
33	Correct	1 ms	548 KB	Output is correct
34	Correct	1 ms	424 KB	Output is correct
35	Correct	1 ms	344 KB	Output is correct
36	Correct	1 ms	344 KB	Output is correct
37	Correct	1 ms	600 KB	Output is correct
38	Correct	2 ms	344 KB	Output is correct
39	Correct	1 ms	448 KB	Output is correct
40	Correct	1 ms	560 KB	Output is correct
41	Correct	1 ms	604 KB	Output is correct
42	Correct	1 ms	604 KB	Output is correct
43	Correct	1 ms	604 KB	Output is correct
44	Correct	1 ms	604 KB	Output is correct
45	Correct	1 ms	604 KB	Output is correct
46	Correct	1 ms	604 KB	Output is correct
47	Correct	1 ms	604 KB	Output is correct
48	Correct	1 ms	604 KB	Output is correct
49	Correct	1 ms	604 KB	Output is correct
50	Correct	1 ms	604 KB	Output is correct
51	Correct	1 ms	604 KB	Output is correct
52	Correct	1 ms	448 KB	Output is correct
53	Correct	1 ms	604 KB	Output is correct
54	Correct	1 ms	604 KB	Output is correct
55	Correct	1 ms	604 KB	Output is correct
56	Correct	1 ms	348 KB	Output is correct
57	Correct	1 ms	604 KB	Output is correct
58	Correct	1 ms	604 KB	Output is correct
59	Correct	1 ms	604 KB	Output is correct
60	Correct	1 ms	676 KB	Output is correct
61	Correct	1 ms	604 KB	Output is correct
62	Correct	1 ms	604 KB	Output is correct
63	Correct	1 ms	348 KB	Output is correct

Subtask #3
53.0 / 53.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	500 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	344 KB	Output is correct
21	Correct	0 ms	344 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	552 KB	Output is correct
25	Correct	1 ms	600 KB	Output is correct
26	Correct	1 ms	444 KB	Output is correct
27	Correct	2 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	604 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	564 KB	Output is correct
33	Correct	1 ms	548 KB	Output is correct
34	Correct	1 ms	424 KB	Output is correct
35	Correct	1 ms	344 KB	Output is correct
36	Correct	1 ms	344 KB	Output is correct
37	Correct	1 ms	600 KB	Output is correct
38	Correct	2 ms	344 KB	Output is correct
39	Correct	1 ms	448 KB	Output is correct
40	Correct	1 ms	560 KB	Output is correct
41	Correct	1 ms	604 KB	Output is correct
42	Correct	1 ms	604 KB	Output is correct
43	Correct	1 ms	604 KB	Output is correct
44	Correct	1 ms	604 KB	Output is correct
45	Correct	1 ms	604 KB	Output is correct
46	Correct	1 ms	604 KB	Output is correct
47	Correct	1 ms	604 KB	Output is correct
48	Correct	1 ms	604 KB	Output is correct
49	Correct	1 ms	604 KB	Output is correct
50	Correct	1 ms	604 KB	Output is correct
51	Correct	1 ms	604 KB	Output is correct
52	Correct	1 ms	448 KB	Output is correct
53	Correct	1 ms	604 KB	Output is correct
54	Correct	1 ms	604 KB	Output is correct
55	Correct	1 ms	604 KB	Output is correct
56	Correct	1 ms	348 KB	Output is correct
57	Correct	1 ms	604 KB	Output is correct
58	Correct	1 ms	604 KB	Output is correct
59	Correct	1 ms	604 KB	Output is correct
60	Correct	1 ms	676 KB	Output is correct
61	Correct	1 ms	604 KB	Output is correct
62	Correct	1 ms	604 KB	Output is correct
63	Correct	1 ms	348 KB	Output is correct
64	Correct	125 ms	16692 KB	Output is correct
65	Correct	90 ms	16588 KB	Output is correct
66	Correct	102 ms	16748 KB	Output is correct
67	Correct	88 ms	16540 KB	Output is correct
68	Correct	94 ms	16468 KB	Output is correct
69	Correct	90 ms	16476 KB	Output is correct
70	Correct	100 ms	16360 KB	Output is correct
71	Correct	93 ms	16516 KB	Output is correct
72	Correct	76 ms	16536 KB	Output is correct
73	Correct	116 ms	34232 KB	Output is correct
74	Correct	110 ms	34132 KB	Output is correct
75	Correct	75 ms	16464 KB	Output is correct
76	Correct	85 ms	16212 KB	Output is correct
77	Correct	78 ms	16284 KB	Output is correct
78	Correct	125 ms	16396 KB	Output is correct
79	Correct	130 ms	16360 KB	Output is correct
80	Correct	85 ms	16324 KB	Output is correct
81	Correct	69 ms	16692 KB	Output is correct
82	Correct	70 ms	16588 KB	Output is correct
83	Correct	125 ms	23752 KB	Output is correct
84	Correct	99 ms	26708 KB	Output is correct
85	Correct	119 ms	26196 KB	Output is correct
86	Correct	81 ms	18260 KB	Output is correct
87	Correct	84 ms	17488 KB	Output is correct
88	Correct	99 ms	17968 KB	Output is correct
89	Correct	125 ms	18084 KB	Output is correct
90	Correct	80 ms	17744 KB	Output is correct
91	Correct	74 ms	18004 KB	Output is correct
92	Correct	93 ms	18372 KB	Output is correct
93	Correct	81 ms	22168 KB	Output is correct
94	Correct	90 ms	24356 KB	Output is correct
95	Correct	114 ms	22468 KB	Output is correct
96	Correct	116 ms	20056 KB	Output is correct
97	Correct	79 ms	17744 KB	Output is correct
98	Correct	73 ms	17172 KB	Output is correct
99	Correct	76 ms	16724 KB	Output is correct
100	Correct	89 ms	21332 KB	Output is correct
101	Correct	104 ms	18596 KB	Output is correct
102	Correct	76 ms	17224 KB	Output is correct
103	Correct	114 ms	16976 KB	Output is correct
104	Correct	66 ms	17352 KB	Output is correct
105	Correct	125 ms	29780 KB	Output is correct
106	Correct	55 ms	16948 KB	Output is correct
107	Correct	56 ms	17096 KB	Output is correct
108	Correct	135 ms	35136 KB	Output is correct
109	Correct	65 ms	17152 KB	Output is correct
110	Correct	145 ms	35852 KB	Output is correct
111	Correct	74 ms	16212 KB	Output is correct

답안 #918702

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