답안 #778488

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
778488 2023-07-10T11:09:30 Z Zflop 경주 (Race) (IOI11_race) C++14
100 / 100
369 ms 104500 KB
#include <bits/stdc++.h>
#include "race.h"

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;

#define pb push_back

#define f first
#define s second

vector<pii>ad[200000];
map<ll,ll>m[200000];
ll ans = (ll)1e16,x;
void dfs(int node,int parent,int depth,ll cost){
	long long t = cost * 2 + x;
	m[node][cost] = depth;
	for (auto i : ad[node])
		if(i.f != parent){
			dfs(i.f,node,depth + 1,cost + i.s);
			if((int)m[i.f].size() > (int)m[node].size()) m[node].swap(m[i.f]);
			for (auto v : m[i.f])
				if(m[node].find(t - v.f) != m[node].end())
					ans = min(ans,m[node][t - v.f] +  v.s - 2 * depth);
			for (auto v : m[i.f])
				if(m[node].find(v.f) != m[node].end()) m[node][v.f] = min(m[node][v.f],v.s);
				else m[node].insert(v);
			}
	}

int best_path(int N, int K, int H[][2], int L[]){
	x = K;
	for (int i = 0; i < N - 1;++i){
		ad[H[i][0]].push_back({H[i][1],L[i]});
		ad[H[i][1]].push_back({H[i][0],L[i]});
		}
	dfs(0,0,0,0);
	return ans == (ll)1e16 ? -1 : ans;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14420 KB Output is correct
2 Correct 7 ms 14392 KB Output is correct
3 Correct 7 ms 14400 KB Output is correct
4 Correct 6 ms 14344 KB Output is correct
5 Correct 6 ms 14404 KB Output is correct
6 Correct 6 ms 14420 KB Output is correct
7 Correct 6 ms 14336 KB Output is correct
8 Correct 6 ms 14376 KB Output is correct
9 Correct 8 ms 14464 KB Output is correct
10 Correct 6 ms 14420 KB Output is correct
11 Correct 6 ms 14420 KB Output is correct
12 Correct 6 ms 14420 KB Output is correct
13 Correct 6 ms 14400 KB Output is correct
14 Correct 6 ms 14420 KB Output is correct
15 Correct 6 ms 14400 KB Output is correct
16 Correct 6 ms 14420 KB Output is correct
17 Correct 6 ms 14424 KB Output is correct
18 Correct 7 ms 14420 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14420 KB Output is correct
2 Correct 7 ms 14392 KB Output is correct
3 Correct 7 ms 14400 KB Output is correct
4 Correct 6 ms 14344 KB Output is correct
5 Correct 6 ms 14404 KB Output is correct
6 Correct 6 ms 14420 KB Output is correct
7 Correct 6 ms 14336 KB Output is correct
8 Correct 6 ms 14376 KB Output is correct
9 Correct 8 ms 14464 KB Output is correct
10 Correct 6 ms 14420 KB Output is correct
11 Correct 6 ms 14420 KB Output is correct
12 Correct 6 ms 14420 KB Output is correct
13 Correct 6 ms 14400 KB Output is correct
14 Correct 6 ms 14420 KB Output is correct
15 Correct 6 ms 14400 KB Output is correct
16 Correct 6 ms 14420 KB Output is correct
17 Correct 6 ms 14424 KB Output is correct
18 Correct 7 ms 14420 KB Output is correct
19 Correct 6 ms 14400 KB Output is correct
20 Correct 6 ms 14420 KB Output is correct
21 Correct 7 ms 14548 KB Output is correct
22 Correct 7 ms 14676 KB Output is correct
23 Correct 8 ms 14668 KB Output is correct
24 Correct 7 ms 14676 KB Output is correct
25 Correct 7 ms 14668 KB Output is correct
26 Correct 7 ms 14664 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 12 ms 14676 KB Output is correct
29 Correct 9 ms 14696 KB Output is correct
30 Correct 8 ms 14672 KB Output is correct
31 Correct 7 ms 14676 KB Output is correct
32 Correct 7 ms 14676 KB Output is correct
33 Correct 7 ms 14676 KB Output is correct
34 Correct 7 ms 14672 KB Output is correct
35 Correct 7 ms 14676 KB Output is correct
36 Correct 7 ms 14660 KB Output is correct
37 Correct 8 ms 14660 KB Output is correct
38 Correct 8 ms 14676 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14420 KB Output is correct
2 Correct 7 ms 14392 KB Output is correct
3 Correct 7 ms 14400 KB Output is correct
4 Correct 6 ms 14344 KB Output is correct
5 Correct 6 ms 14404 KB Output is correct
6 Correct 6 ms 14420 KB Output is correct
7 Correct 6 ms 14336 KB Output is correct
8 Correct 6 ms 14376 KB Output is correct
9 Correct 8 ms 14464 KB Output is correct
10 Correct 6 ms 14420 KB Output is correct
11 Correct 6 ms 14420 KB Output is correct
12 Correct 6 ms 14420 KB Output is correct
13 Correct 6 ms 14400 KB Output is correct
14 Correct 6 ms 14420 KB Output is correct
15 Correct 6 ms 14400 KB Output is correct
16 Correct 6 ms 14420 KB Output is correct
17 Correct 6 ms 14424 KB Output is correct
18 Correct 7 ms 14420 KB Output is correct
19 Correct 97 ms 37644 KB Output is correct
20 Correct 109 ms 37636 KB Output is correct
21 Correct 93 ms 37360 KB Output is correct
22 Correct 95 ms 36876 KB Output is correct
23 Correct 132 ms 49812 KB Output is correct
24 Correct 101 ms 39864 KB Output is correct
25 Correct 91 ms 39264 KB Output is correct
26 Correct 49 ms 48216 KB Output is correct
27 Correct 158 ms 49496 KB Output is correct
28 Correct 261 ms 94824 KB Output is correct
29 Correct 264 ms 92732 KB Output is correct
30 Correct 162 ms 49668 KB Output is correct
31 Correct 164 ms 49476 KB Output is correct
32 Correct 206 ms 49768 KB Output is correct
33 Correct 188 ms 54348 KB Output is correct
34 Correct 265 ms 87256 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 14420 KB Output is correct
2 Correct 7 ms 14392 KB Output is correct
3 Correct 7 ms 14400 KB Output is correct
4 Correct 6 ms 14344 KB Output is correct
5 Correct 6 ms 14404 KB Output is correct
6 Correct 6 ms 14420 KB Output is correct
7 Correct 6 ms 14336 KB Output is correct
8 Correct 6 ms 14376 KB Output is correct
9 Correct 8 ms 14464 KB Output is correct
10 Correct 6 ms 14420 KB Output is correct
11 Correct 6 ms 14420 KB Output is correct
12 Correct 6 ms 14420 KB Output is correct
13 Correct 6 ms 14400 KB Output is correct
14 Correct 6 ms 14420 KB Output is correct
15 Correct 6 ms 14400 KB Output is correct
16 Correct 6 ms 14420 KB Output is correct
17 Correct 6 ms 14424 KB Output is correct
18 Correct 7 ms 14420 KB Output is correct
19 Correct 6 ms 14400 KB Output is correct
20 Correct 6 ms 14420 KB Output is correct
21 Correct 7 ms 14548 KB Output is correct
22 Correct 7 ms 14676 KB Output is correct
23 Correct 8 ms 14668 KB Output is correct
24 Correct 7 ms 14676 KB Output is correct
25 Correct 7 ms 14668 KB Output is correct
26 Correct 7 ms 14664 KB Output is correct
27 Correct 9 ms 14548 KB Output is correct
28 Correct 12 ms 14676 KB Output is correct
29 Correct 9 ms 14696 KB Output is correct
30 Correct 8 ms 14672 KB Output is correct
31 Correct 7 ms 14676 KB Output is correct
32 Correct 7 ms 14676 KB Output is correct
33 Correct 7 ms 14676 KB Output is correct
34 Correct 7 ms 14672 KB Output is correct
35 Correct 7 ms 14676 KB Output is correct
36 Correct 7 ms 14660 KB Output is correct
37 Correct 8 ms 14660 KB Output is correct
38 Correct 8 ms 14676 KB Output is correct
39 Correct 97 ms 37644 KB Output is correct
40 Correct 109 ms 37636 KB Output is correct
41 Correct 93 ms 37360 KB Output is correct
42 Correct 95 ms 36876 KB Output is correct
43 Correct 132 ms 49812 KB Output is correct
44 Correct 101 ms 39864 KB Output is correct
45 Correct 91 ms 39264 KB Output is correct
46 Correct 49 ms 48216 KB Output is correct
47 Correct 158 ms 49496 KB Output is correct
48 Correct 261 ms 94824 KB Output is correct
49 Correct 264 ms 92732 KB Output is correct
50 Correct 162 ms 49668 KB Output is correct
51 Correct 164 ms 49476 KB Output is correct
52 Correct 206 ms 49768 KB Output is correct
53 Correct 188 ms 54348 KB Output is correct
54 Correct 265 ms 87256 KB Output is correct
55 Correct 17 ms 17620 KB Output is correct
56 Correct 13 ms 16328 KB Output is correct
57 Correct 59 ms 35032 KB Output is correct
58 Correct 45 ms 27580 KB Output is correct
59 Correct 89 ms 54408 KB Output is correct
60 Correct 243 ms 93272 KB Output is correct
61 Correct 183 ms 53032 KB Output is correct
62 Correct 149 ms 49560 KB Output is correct
63 Correct 207 ms 49560 KB Output is correct
64 Correct 369 ms 104500 KB Output is correct
65 Correct 354 ms 102468 KB Output is correct
66 Correct 262 ms 88272 KB Output is correct
67 Correct 134 ms 42340 KB Output is correct
68 Correct 288 ms 65988 KB Output is correct
69 Correct 319 ms 70644 KB Output is correct
70 Correct 267 ms 63692 KB Output is correct