Submission #831953

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
831953	2023-08-20T18:33:12 Z	iskhakkutbilim	Race (IOI11_race)	C++14	100 / 100	283 ms	69748 KB

race

#include "race.h"
#include <bits/stdc++.h>

using namespace std;
#define ff first
#define ss second



int n, k, mn;
vector< pair<int, int> > g[200005];
void dfs(int v, int par, map<int, int> &mp, int depth, long long distance){
	mp[distance] = depth;
	for(auto [to, w] : g[v]){
		if(to == par) continue;
		map<int, int> sub;
		dfs(to, v, sub, depth + 1, distance + w);
		if(mp.size() < sub.size()) swap(mp, sub);
		for(auto &u : sub){
			int d = 2*distance - u.ff + k;
			if(mp.count(d)){
				mn = min(mn, mp[d] + u.ss - 2*depth);
			}
		}
		for(auto &u : sub){
			if(mp.count(u.ff)) mp[u.ff] = min(mp[u.ff], u.ss);
			else{
				mp[u.ff] = u.ss;
			}	
		}
	}
}


int best_path(int N, int K, int H[][2], int L[]){
	
	n = N, k = K, mn = N+1;
	for(int i = 0;i < n-1; i++){
		g[H[i][0]].push_back({H[i][1], L[i]});
		g[H[i][1]].push_back({H[i][0], L[i]});
	}
	map<int, int> mp;
	dfs(0, 0, mp, 0, 0);
	
	if(mn == n+1) mn = -1;
	return mn;
}

//main(){
//	int N, K; cin >> N >> K;
//	int H[N-1][2], L[N-1];
//	for(int i = 0; i < N-1; i++){
//		cin >> H[i][0] >> H[i][1];
//	}
//	for(int i = 0;i < N-1; i++) cin >> L[i];
//	cout << best_path(N, K, H, L);
//}

Compilation message

race.cpp: In function 'void dfs(int, int, std::map<int, int>&, int, long long int)':
race.cpp:14:11: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   14 |  for(auto [to, w] : g[v]){
      |           ^

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	3 ms	4980 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	5008 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	5008 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5004 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	2 ms	5012 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	3 ms	4980 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	5008 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	5008 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5004 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	2 ms	5012 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	5072 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 ms	5076 KB	Output is correct
26	Correct	3 ms	5016 KB	Output is correct
27	Correct	3 ms	5076 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5076 KB	Output is correct
30	Correct	3 ms	5076 KB	Output is correct
31	Correct	3 ms	5016 KB	Output is correct
32	Correct	3 ms	5016 KB	Output is correct
33	Correct	3 ms	5024 KB	Output is correct
34	Correct	3 ms	5148 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5076 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5148 KB	Output is correct

Subtask #3
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	3 ms	4980 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	5008 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	5008 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5004 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	2 ms	5012 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	62 ms	11152 KB	Output is correct
20	Correct	64 ms	11224 KB	Output is correct
21	Correct	59 ms	11244 KB	Output is correct
22	Correct	62 ms	11348 KB	Output is correct
23	Correct	88 ms	11628 KB	Output is correct
24	Correct	68 ms	11464 KB	Output is correct
25	Correct	63 ms	24844 KB	Output is correct
26	Correct	49 ms	37140 KB	Output is correct
27	Correct	110 ms	18064 KB	Output is correct
28	Correct	167 ms	69748 KB	Output is correct
29	Correct	176 ms	67188 KB	Output is correct
30	Correct	114 ms	17996 KB	Output is correct
31	Correct	111 ms	18036 KB	Output is correct
32	Correct	114 ms	18232 KB	Output is correct
33	Correct	122 ms	17480 KB	Output is correct
34	Correct	212 ms	27952 KB	Output is correct

Subtask #4
57.0 / 57.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	5012 KB	Output is correct
2	Correct	3 ms	4980 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	3 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	2 ms	4948 KB	Output is correct
8	Correct	2 ms	5008 KB	Output is correct
9	Correct	3 ms	4948 KB	Output is correct
10	Correct	2 ms	4948 KB	Output is correct
11	Correct	2 ms	5008 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	3 ms	5004 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	2 ms	4948 KB	Output is correct
17	Correct	2 ms	5012 KB	Output is correct
18	Correct	2 ms	4948 KB	Output is correct
19	Correct	2 ms	4948 KB	Output is correct
20	Correct	2 ms	4948 KB	Output is correct
21	Correct	3 ms	5072 KB	Output is correct
22	Correct	3 ms	5076 KB	Output is correct
23	Correct	3 ms	5076 KB	Output is correct
24	Correct	3 ms	5076 KB	Output is correct
25	Correct	3 ms	5076 KB	Output is correct
26	Correct	3 ms	5016 KB	Output is correct
27	Correct	3 ms	5076 KB	Output is correct
28	Correct	3 ms	5076 KB	Output is correct
29	Correct	3 ms	5076 KB	Output is correct
30	Correct	3 ms	5076 KB	Output is correct
31	Correct	3 ms	5016 KB	Output is correct
32	Correct	3 ms	5016 KB	Output is correct
33	Correct	3 ms	5024 KB	Output is correct
34	Correct	3 ms	5148 KB	Output is correct
35	Correct	3 ms	5076 KB	Output is correct
36	Correct	3 ms	5076 KB	Output is correct
37	Correct	3 ms	5076 KB	Output is correct
38	Correct	3 ms	5148 KB	Output is correct
39	Correct	62 ms	11152 KB	Output is correct
40	Correct	64 ms	11224 KB	Output is correct
41	Correct	59 ms	11244 KB	Output is correct
42	Correct	62 ms	11348 KB	Output is correct
43	Correct	88 ms	11628 KB	Output is correct
44	Correct	68 ms	11464 KB	Output is correct
45	Correct	63 ms	24844 KB	Output is correct
46	Correct	49 ms	37140 KB	Output is correct
47	Correct	110 ms	18064 KB	Output is correct
48	Correct	167 ms	69748 KB	Output is correct
49	Correct	176 ms	67188 KB	Output is correct
50	Correct	114 ms	17996 KB	Output is correct
51	Correct	111 ms	18036 KB	Output is correct
52	Correct	114 ms	18232 KB	Output is correct
53	Correct	122 ms	17480 KB	Output is correct
54	Correct	212 ms	27952 KB	Output is correct
55	Correct	12 ms	5972 KB	Output is correct
56	Correct	8 ms	5532 KB	Output is correct
57	Correct	42 ms	11372 KB	Output is correct
58	Correct	37 ms	11152 KB	Output is correct
59	Correct	66 ms	37216 KB	Output is correct
60	Correct	155 ms	67972 KB	Output is correct
61	Correct	144 ms	19528 KB	Output is correct
62	Correct	114 ms	18160 KB	Output is correct
63	Correct	143 ms	18248 KB	Output is correct
64	Correct	283 ms	24544 KB	Output is correct
65	Correct	266 ms	28200 KB	Output is correct
66	Correct	189 ms	61636 KB	Output is correct
67	Correct	85 ms	18488 KB	Output is correct
68	Correct	204 ms	26640 KB	Output is correct
69	Correct	224 ms	30120 KB	Output is correct
70	Correct	180 ms	25816 KB	Output is correct

Submission #831953

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 12.0 / 12.0

Subtask #3 22.0 / 22.0

Subtask #4 57.0 / 57.0

Subtask #1
9.0 / 9.0

Subtask #2
12.0 / 12.0

Subtask #3
22.0 / 22.0

Subtask #4
57.0 / 57.0