Submission #319963

# Submission time Handle Problem Language Result Execution time Memory
319963 2020-11-07T00:25:27 Z sofapuden Race (IOI11_race) C++14
100 / 100
563 ms 100452 KB
#include <bits/stdc++.h>
#include "race.h"

using namespace std;

typedef long long ll;

const int maxn = 2e5+5;

map<ll,int> se[maxn];
int dep[maxn];
ll val[maxn];
vector<pair<int,int>> adj[maxn];

int ans = 1<<30, gK;

void dfs(int nod, int par){
	se[nod][val[nod]] = dep[nod];
	for(auto nxt : adj[nod]){
		if(nxt.first == par)continue;
		dep[nxt.first] = dep[nod]+1;
		val[nxt.first] = val[nod]+nxt.second;
		dfs(nxt.first,nod);
		if(se[nod].size() < se[nxt.first].size())swap(se[nod], se[nxt.first]);
	}
	for(auto nxt : adj[nod]){
		if(nxt.first == par)continue;
		for(auto it : se[nxt.first]){
			int missing = gK + 2*val[nod] - it.first;
			if(se[nod].count(missing)){
				ans = min(ans, it.second + se[nod][missing] - 2*dep[nod]);
			}
		}
		for(auto it : se[nxt.first]){
			if(se[nod].count(it.first))se[nod][it.first] = min(se[nod][it.first], it.second);
			else se[nod][it.first] = it.second;
		}
	}
	
}

int best_path(int N, int K, int H[][2], int L[]){
	gK = K;
	for(int i = 0; i < N-1; ++i){
		adj[H[i][0]].push_back({H[i][1],L[i]});
		adj[H[i][1]].push_back({H[i][0],L[i]});
	}
	dfs(0,0);
	if(ans == (1<<30))return -1;
	return ans;	
}
	
# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 11 ms 14572 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 10 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 10 ms 14444 KB Output is correct
7 Correct 10 ms 14444 KB Output is correct
8 Correct 10 ms 14444 KB Output is correct
9 Correct 10 ms 14444 KB Output is correct
10 Correct 10 ms 14444 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 11 ms 14444 KB Output is correct
13 Correct 10 ms 14444 KB Output is correct
14 Correct 11 ms 14476 KB Output is correct
15 Correct 10 ms 14444 KB Output is correct
16 Correct 10 ms 14444 KB Output is correct
17 Correct 10 ms 14444 KB Output is correct
18 Correct 10 ms 14572 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 11 ms 14572 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 10 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 10 ms 14444 KB Output is correct
7 Correct 10 ms 14444 KB Output is correct
8 Correct 10 ms 14444 KB Output is correct
9 Correct 10 ms 14444 KB Output is correct
10 Correct 10 ms 14444 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 11 ms 14444 KB Output is correct
13 Correct 10 ms 14444 KB Output is correct
14 Correct 11 ms 14476 KB Output is correct
15 Correct 10 ms 14444 KB Output is correct
16 Correct 10 ms 14444 KB Output is correct
17 Correct 10 ms 14444 KB Output is correct
18 Correct 10 ms 14572 KB Output is correct
19 Correct 10 ms 14476 KB Output is correct
20 Correct 10 ms 14444 KB Output is correct
21 Correct 11 ms 14700 KB Output is correct
22 Correct 12 ms 14700 KB Output is correct
23 Correct 12 ms 14732 KB Output is correct
24 Correct 12 ms 14848 KB Output is correct
25 Correct 12 ms 14700 KB Output is correct
26 Correct 12 ms 14700 KB Output is correct
27 Correct 11 ms 14572 KB Output is correct
28 Correct 12 ms 14700 KB Output is correct
29 Correct 12 ms 14828 KB Output is correct
30 Correct 11 ms 14700 KB Output is correct
31 Correct 12 ms 14700 KB Output is correct
32 Correct 12 ms 14732 KB Output is correct
33 Correct 12 ms 14828 KB Output is correct
34 Correct 11 ms 14828 KB Output is correct
35 Correct 11 ms 14700 KB Output is correct
36 Correct 11 ms 14700 KB Output is correct
37 Correct 11 ms 14700 KB Output is correct
38 Correct 13 ms 14848 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 11 ms 14572 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 10 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 10 ms 14444 KB Output is correct
7 Correct 10 ms 14444 KB Output is correct
8 Correct 10 ms 14444 KB Output is correct
9 Correct 10 ms 14444 KB Output is correct
10 Correct 10 ms 14444 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 11 ms 14444 KB Output is correct
13 Correct 10 ms 14444 KB Output is correct
14 Correct 11 ms 14476 KB Output is correct
15 Correct 10 ms 14444 KB Output is correct
16 Correct 10 ms 14444 KB Output is correct
17 Correct 10 ms 14444 KB Output is correct
18 Correct 10 ms 14572 KB Output is correct
19 Correct 164 ms 35304 KB Output is correct
20 Correct 164 ms 36456 KB Output is correct
21 Correct 154 ms 36452 KB Output is correct
22 Correct 171 ms 36196 KB Output is correct
23 Correct 225 ms 49508 KB Output is correct
24 Correct 160 ms 40164 KB Output is correct
25 Correct 157 ms 39136 KB Output is correct
26 Correct 80 ms 47844 KB Output is correct
27 Correct 252 ms 48740 KB Output is correct
28 Correct 381 ms 94052 KB Output is correct
29 Correct 375 ms 92004 KB Output is correct
30 Correct 264 ms 48888 KB Output is correct
31 Correct 255 ms 48740 KB Output is correct
32 Correct 312 ms 48868 KB Output is correct
33 Correct 313 ms 53664 KB Output is correct
34 Correct 435 ms 86628 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 11 ms 14572 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 10 ms 14444 KB Output is correct
5 Correct 11 ms 14444 KB Output is correct
6 Correct 10 ms 14444 KB Output is correct
7 Correct 10 ms 14444 KB Output is correct
8 Correct 10 ms 14444 KB Output is correct
9 Correct 10 ms 14444 KB Output is correct
10 Correct 10 ms 14444 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 11 ms 14444 KB Output is correct
13 Correct 10 ms 14444 KB Output is correct
14 Correct 11 ms 14476 KB Output is correct
15 Correct 10 ms 14444 KB Output is correct
16 Correct 10 ms 14444 KB Output is correct
17 Correct 10 ms 14444 KB Output is correct
18 Correct 10 ms 14572 KB Output is correct
19 Correct 10 ms 14476 KB Output is correct
20 Correct 10 ms 14444 KB Output is correct
21 Correct 11 ms 14700 KB Output is correct
22 Correct 12 ms 14700 KB Output is correct
23 Correct 12 ms 14732 KB Output is correct
24 Correct 12 ms 14848 KB Output is correct
25 Correct 12 ms 14700 KB Output is correct
26 Correct 12 ms 14700 KB Output is correct
27 Correct 11 ms 14572 KB Output is correct
28 Correct 12 ms 14700 KB Output is correct
29 Correct 12 ms 14828 KB Output is correct
30 Correct 11 ms 14700 KB Output is correct
31 Correct 12 ms 14700 KB Output is correct
32 Correct 12 ms 14732 KB Output is correct
33 Correct 12 ms 14828 KB Output is correct
34 Correct 11 ms 14828 KB Output is correct
35 Correct 11 ms 14700 KB Output is correct
36 Correct 11 ms 14700 KB Output is correct
37 Correct 11 ms 14700 KB Output is correct
38 Correct 13 ms 14848 KB Output is correct
39 Correct 164 ms 35304 KB Output is correct
40 Correct 164 ms 36456 KB Output is correct
41 Correct 154 ms 36452 KB Output is correct
42 Correct 171 ms 36196 KB Output is correct
43 Correct 225 ms 49508 KB Output is correct
44 Correct 160 ms 40164 KB Output is correct
45 Correct 157 ms 39136 KB Output is correct
46 Correct 80 ms 47844 KB Output is correct
47 Correct 252 ms 48740 KB Output is correct
48 Correct 381 ms 94052 KB Output is correct
49 Correct 375 ms 92004 KB Output is correct
50 Correct 264 ms 48888 KB Output is correct
51 Correct 255 ms 48740 KB Output is correct
52 Correct 312 ms 48868 KB Output is correct
53 Correct 313 ms 53664 KB Output is correct
54 Correct 435 ms 86628 KB Output is correct
55 Correct 27 ms 17784 KB Output is correct
56 Correct 19 ms 16364 KB Output is correct
57 Correct 96 ms 34276 KB Output is correct
58 Correct 70 ms 27992 KB Output is correct
59 Correct 116 ms 54244 KB Output is correct
60 Correct 367 ms 92636 KB Output is correct
61 Correct 292 ms 52196 KB Output is correct
62 Correct 248 ms 48740 KB Output is correct
63 Correct 323 ms 48868 KB Output is correct
64 Correct 563 ms 100452 KB Output is correct
65 Correct 549 ms 100068 KB Output is correct
66 Correct 393 ms 87512 KB Output is correct
67 Correct 231 ms 43344 KB Output is correct
68 Correct 421 ms 65508 KB Output is correct
69 Correct 422 ms 66020 KB Output is correct
70 Correct 419 ms 63204 KB Output is correct