답안 #64205 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
64205	2018-08-03T13:38:49 Z	gs14004	두 로봇 (KOI18_robot)	C++17	100 / 100	148 ms	59748 KB

robot

#include <bits/stdc++.h>
using namespace std;
using pi = pair<int, int>;
using lint = long long;
const int MAXN = 255555;

vector<pi> gph[MAXN];
vector<int> v;
int n, s, e;
int par[MAXN], pae[MAXN];

void dfs(int x, int p){
	for(auto &i : gph[x]){
		if(i.second != p){
			par[i.second] = x;
			pae[i.second] = i.first;
			dfs(i.second, x);
		}
	}
}

int main(){
	scanf("%d %d %d",&n,&s,&e);
	if(s == e){
		puts("0");
		return 0;
	}
	for(int i=0; i<n-1; i++){
		int x, y, v;
		scanf("%d %d %d",&x,&y,&v);
		gph[x].push_back(pi(v, y));
		gph[y].push_back(pi(v, x));
	}
	dfs(s, -1);
	while(e != s){
		v.push_back(pae[e]);
		e = par[e];
	}
	cout << accumulate(v.begin(), v.end(), 0) - *max_element(v.begin(), v.end()) << endl;
}

Compilation message

robot.cpp: In function 'int main()':
robot.cpp:23:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d",&n,&s,&e);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
robot.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d",&x,&y,&v);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	65 ms	17144 KB	Output is correct
2	Correct	8 ms	17144 KB	Output is correct
3	Correct	76 ms	17144 KB	Output is correct
4	Correct	8 ms	17144 KB	Output is correct
5	Correct	14 ms	17144 KB	Output is correct
6	Correct	15 ms	17144 KB	Output is correct
7	Correct	8 ms	17144 KB	Output is correct
8	Correct	23 ms	17144 KB	Output is correct
9	Correct	10 ms	17144 KB	Output is correct
10	Correct	27 ms	17144 KB	Output is correct
11	Correct	8 ms	17144 KB	Output is correct
12	Correct	7 ms	17144 KB	Output is correct
13	Correct	23 ms	17144 KB	Output is correct
14	Correct	31 ms	17144 KB	Output is correct
15	Correct	11 ms	17144 KB	Output is correct
16	Correct	36 ms	17144 KB	Output is correct
17	Correct	35 ms	17144 KB	Output is correct
18	Correct	42 ms	17548 KB	Output is correct
19	Correct	15 ms	17548 KB	Output is correct
20	Correct	39 ms	19052 KB	Output is correct
21	Correct	47 ms	20676 KB	Output is correct
22	Correct	50 ms	23712 KB	Output is correct
23	Correct	13 ms	23712 KB	Output is correct
24	Correct	69 ms	24404 KB	Output is correct

Subtask #2
19.0 / 19.0

#	결과	실행 시간	메모리	Grader output
1	Correct	102 ms	25004 KB	Output is correct
2	Correct	68 ms	27544 KB	Output is correct
3	Correct	9 ms	27544 KB	Output is correct
4	Correct	8 ms	27544 KB	Output is correct
5	Correct	19 ms	27544 KB	Output is correct
6	Correct	16 ms	27544 KB	Output is correct
7	Correct	8 ms	27544 KB	Output is correct
8	Correct	20 ms	27544 KB	Output is correct
9	Correct	21 ms	27544 KB	Output is correct
10	Correct	8 ms	27544 KB	Output is correct
11	Correct	31 ms	27544 KB	Output is correct
12	Correct	34 ms	27544 KB	Output is correct
13	Correct	12 ms	27544 KB	Output is correct
14	Correct	12 ms	27544 KB	Output is correct
15	Correct	40 ms	27544 KB	Output is correct
16	Correct	41 ms	28492 KB	Output is correct
17	Correct	49 ms	29728 KB	Output is correct
18	Correct	59 ms	29728 KB	Output is correct
19	Correct	61 ms	34160 KB	Output is correct
20	Correct	100 ms	34160 KB	Output is correct
21	Correct	13 ms	34160 KB	Output is correct
22	Correct	18 ms	34160 KB	Output is correct

Subtask #3
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	34160 KB	Output is correct
2	Correct	11 ms	34160 KB	Output is correct
3	Correct	11 ms	34160 KB	Output is correct
4	Correct	9 ms	34160 KB	Output is correct
5	Correct	9 ms	34160 KB	Output is correct
6	Correct	10 ms	34160 KB	Output is correct
7	Correct	10 ms	34160 KB	Output is correct
8	Correct	10 ms	34160 KB	Output is correct
9	Correct	8 ms	34160 KB	Output is correct
10	Correct	9 ms	34160 KB	Output is correct
11	Correct	9 ms	34160 KB	Output is correct
12	Correct	9 ms	34160 KB	Output is correct
13	Correct	8 ms	34160 KB	Output is correct
14	Correct	11 ms	34160 KB	Output is correct
15	Correct	12 ms	34160 KB	Output is correct
16	Correct	8 ms	34160 KB	Output is correct

Subtask #4
41.0 / 41.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	35736 KB	Output is correct
2	Correct	115 ms	37160 KB	Output is correct
3	Correct	66 ms	42860 KB	Output is correct
4	Correct	8 ms	42860 KB	Output is correct
5	Correct	66 ms	42860 KB	Output is correct
6	Correct	148 ms	45684 KB	Output is correct
7	Correct	8 ms	45684 KB	Output is correct
8	Correct	8 ms	45684 KB	Output is correct
9	Correct	10 ms	45684 KB	Output is correct
10	Correct	18 ms	45684 KB	Output is correct
11	Correct	9 ms	45684 KB	Output is correct
12	Correct	22 ms	45684 KB	Output is correct
13	Correct	22 ms	45684 KB	Output is correct
14	Correct	20 ms	45684 KB	Output is correct
15	Correct	9 ms	45684 KB	Output is correct
16	Correct	9 ms	45684 KB	Output is correct
17	Correct	19 ms	45684 KB	Output is correct
18	Correct	11 ms	45684 KB	Output is correct
19	Correct	25 ms	45684 KB	Output is correct
20	Correct	25 ms	45684 KB	Output is correct
21	Correct	25 ms	45684 KB	Output is correct
22	Correct	9 ms	45684 KB	Output is correct
23	Correct	8 ms	45684 KB	Output is correct
24	Correct	8 ms	45684 KB	Output is correct
25	Correct	9 ms	45684 KB	Output is correct
26	Correct	33 ms	45684 KB	Output is correct
27	Correct	9 ms	45684 KB	Output is correct
28	Correct	26 ms	45684 KB	Output is correct
29	Correct	33 ms	45684 KB	Output is correct
30	Correct	43 ms	45684 KB	Output is correct
31	Correct	12 ms	45684 KB	Output is correct
32	Correct	9 ms	45684 KB	Output is correct
33	Correct	10 ms	45684 KB	Output is correct
34	Correct	31 ms	45684 KB	Output is correct
35	Correct	10 ms	45684 KB	Output is correct
36	Correct	60 ms	45684 KB	Output is correct
37	Correct	59 ms	45684 KB	Output is correct
38	Correct	38 ms	47596 KB	Output is correct
39	Correct	12 ms	47596 KB	Output is correct
40	Correct	9 ms	47596 KB	Output is correct
41	Correct	45 ms	48492 KB	Output is correct
42	Correct	14 ms	48492 KB	Output is correct
43	Correct	53 ms	49936 KB	Output is correct
44	Correct	68 ms	49936 KB	Output is correct
45	Correct	48 ms	50484 KB	Output is correct
46	Correct	46 ms	53556 KB	Output is correct
47	Correct	51 ms	56448 KB	Output is correct
48	Correct	95 ms	56448 KB	Output is correct
49	Correct	91 ms	56448 KB	Output is correct
50	Correct	14 ms	56448 KB	Output is correct
51	Correct	14 ms	56448 KB	Output is correct
52	Correct	14 ms	56448 KB	Output is correct
53	Correct	61 ms	59748 KB	Output is correct

답안 #64205

Compilation message

Subtask #1 17.0 / 17.0

Subtask #2 19.0 / 19.0

Subtask #3 23.0 / 23.0

Subtask #4 41.0 / 41.0

Subtask #1
17.0 / 17.0

Subtask #2
19.0 / 19.0

Subtask #3
23.0 / 23.0

Subtask #4
41.0 / 41.0