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답안 #109581

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
109581 2019-05-07T06:35:42 Z Erkhemkhuu 경주 (Race) (IOI11_race) C++17
43 / 100
 3000 ms 46552 KB 
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define F first
#define S second
vector <pair <int, int> > adj[200005];
map <int, int> global_path, local_path;
bool isCentroid[200005] = {false};
int subtr_size[200005], localCentroid, k, ans;
inline void SubTreeSize(int v, int p) {
	subtr_size[v] = 1;
	for(auto &it: adj[v])
		if(it.F != p && !isCentroid[it.F]) {
			SubTreeSize(it.F, v);
			subtr_size[v] += subtr_size[it.F];
		}
	return;
}
inline void traverse(int v, int p, int w, int l) {
	if(w > k) return;
	if(w == k) ans = min(ans, l);
	int temp = global_path[k - w];
	if(temp) ans = min(ans, l + temp);
	if(!local_path[w] || local_path[w] > l) local_path[w] = l;
	for(auto &it: adj[v])
		if(it.F != p && !isCentroid[it.F])
			traverse(it.F, v, w + it.S, l + 1);
	return;
}
inline void findCentroid(int v, int p, int size) {
	bool flag = (size - subtr_size[v] <= size / 2);
	for(auto &it: adj[v])
		if(it.F != p && !isCentroid[it.F]) {
			flag &= (subtr_size[it.F] <= size / 2);
			findCentroid(it.F, v, size);
		}
	if(flag) localCentroid = v;
	return;
}
inline void go(int v) {
	SubTreeSize(v, -1);
	findCentroid(v, -1, subtr_size[v]);
	global_path.clear();
	isCentroid[localCentroid] = true;
	for(auto &it: adj[localCentroid])
		if(!isCentroid[it.F]) {
        	local_path.clear();
        	traverse(it.F, localCentroid, it.S, 1);
        	for(auto &localit: local_path)
        		if(!global_path[localit.F] || global_path[localit.F] > localit.S)
        			global_path[localit.F] = localit.S;
        }
	for(auto &it: adj[localCentroid])
		if(!isCentroid[it.F])
			go(it.F);
	return;
}
int best_path(int N, int K, int H[][2], int L[]) {
	int i;
	k = K;
	for(i = 0; i < N - 1; i++) {
		adj[H[i][0]].pb(mp(H[i][1], L[i]));
		adj[H[i][1]].pb(mp(H[i][0], L[i]));
	}
	ans = 1e9;
	go(0);
	if(ans == 1e9) ans = -1;
	return ans;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 6 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 5120 KB Output is correct
7 Correct 7 ms 5120 KB Output is correct
8 Correct 6 ms 5120 KB Output is correct
9 Correct 6 ms 4992 KB Output is correct
10 Correct 6 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 7 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 8 ms 5120 KB Output is correct
17 Correct 6 ms 4996 KB Output is correct
18 Correct 6 ms 5120 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 6 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 5120 KB Output is correct
7 Correct 7 ms 5120 KB Output is correct
8 Correct 6 ms 5120 KB Output is correct
9 Correct 6 ms 4992 KB Output is correct
10 Correct 6 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 7 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 8 ms 5120 KB Output is correct
17 Correct 6 ms 4996 KB Output is correct
18 Correct 6 ms 5120 KB Output is correct
19 Correct 6 ms 4992 KB Output is correct
20 Correct 6 ms 4992 KB Output is correct
21 Correct 10 ms 5120 KB Output is correct
22 Correct 8 ms 5120 KB Output is correct
23 Correct 7 ms 5120 KB Output is correct
24 Correct 8 ms 5120 KB Output is correct
25 Correct 9 ms 5248 KB Output is correct
26 Correct 9 ms 5120 KB Output is correct
27 Correct 8 ms 5120 KB Output is correct
28 Correct 10 ms 5120 KB Output is correct
29 Correct 11 ms 5248 KB Output is correct
30 Correct 10 ms 5248 KB Output is correct
31 Correct 9 ms 5120 KB Output is correct
32 Correct 10 ms 5120 KB Output is correct
33 Correct 13 ms 5248 KB Output is correct
34 Correct 9 ms 5120 KB Output is correct
35 Correct 9 ms 5120 KB Output is correct
36 Correct 8 ms 5120 KB Output is correct
37 Correct 9 ms 5120 KB Output is correct
38 Correct 12 ms 5248 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 6 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 5120 KB Output is correct
7 Correct 7 ms 5120 KB Output is correct
8 Correct 6 ms 5120 KB Output is correct
9 Correct 6 ms 4992 KB Output is correct
10 Correct 6 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 7 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 8 ms 5120 KB Output is correct
17 Correct 6 ms 4996 KB Output is correct
18 Correct 6 ms 5120 KB Output is correct
19 Correct 393 ms 11684 KB Output is correct
20 Correct 424 ms 11640 KB Output is correct
21 Correct 362 ms 11768 KB Output is correct
22 Correct 387 ms 11896 KB Output is correct
23 Correct 284 ms 12152 KB Output is correct
24 Correct 154 ms 11896 KB Output is correct
25 Correct 298 ms 13788 KB Output is correct
26 Correct 139 ms 15864 KB Output is correct
27 Correct 456 ms 17864 KB Output is correct
28 Correct 712 ms 26000 KB Output is correct
29 Correct 686 ms 25204 KB Output is correct
30 Correct 428 ms 17912 KB Output is correct
31 Correct 407 ms 17784 KB Output is correct
32 Correct 435 ms 17784 KB Output is correct
33 Correct 882 ms 16540 KB Output is correct
34 Correct 546 ms 16656 KB Output is correct

Subtask #4
0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 4992 KB Output is correct
2 Correct 6 ms 4992 KB Output is correct
3 Correct 8 ms 5120 KB Output is correct
4 Correct 6 ms 4992 KB Output is correct
5 Correct 7 ms 5120 KB Output is correct
6 Correct 7 ms 5120 KB Output is correct
7 Correct 7 ms 5120 KB Output is correct
8 Correct 6 ms 5120 KB Output is correct
9 Correct 6 ms 4992 KB Output is correct
10 Correct 6 ms 5120 KB Output is correct
11 Correct 8 ms 5120 KB Output is correct
12 Correct 7 ms 5120 KB Output is correct
13 Correct 4 ms 4992 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 8 ms 5120 KB Output is correct
17 Correct 6 ms 4996 KB Output is correct
18 Correct 6 ms 5120 KB Output is correct
19 Correct 6 ms 4992 KB Output is correct
20 Correct 6 ms 4992 KB Output is correct
21 Correct 10 ms 5120 KB Output is correct
22 Correct 8 ms 5120 KB Output is correct
23 Correct 7 ms 5120 KB Output is correct
24 Correct 8 ms 5120 KB Output is correct
25 Correct 9 ms 5248 KB Output is correct
26 Correct 9 ms 5120 KB Output is correct
27 Correct 8 ms 5120 KB Output is correct
28 Correct 10 ms 5120 KB Output is correct
29 Correct 11 ms 5248 KB Output is correct
30 Correct 10 ms 5248 KB Output is correct
31 Correct 9 ms 5120 KB Output is correct
32 Correct 10 ms 5120 KB Output is correct
33 Correct 13 ms 5248 KB Output is correct
34 Correct 9 ms 5120 KB Output is correct
35 Correct 9 ms 5120 KB Output is correct
36 Correct 8 ms 5120 KB Output is correct
37 Correct 9 ms 5120 KB Output is correct
38 Correct 12 ms 5248 KB Output is correct
39 Correct 393 ms 11684 KB Output is correct
40 Correct 424 ms 11640 KB Output is correct
41 Correct 362 ms 11768 KB Output is correct
42 Correct 387 ms 11896 KB Output is correct
43 Correct 284 ms 12152 KB Output is correct
44 Correct 154 ms 11896 KB Output is correct
45 Correct 298 ms 13788 KB Output is correct
46 Correct 139 ms 15864 KB Output is correct
47 Correct 456 ms 17864 KB Output is correct
48 Correct 712 ms 26000 KB Output is correct
49 Correct 686 ms 25204 KB Output is correct
50 Correct 428 ms 17912 KB Output is correct
51 Correct 407 ms 17784 KB Output is correct
52 Correct 435 ms 17784 KB Output is correct
53 Correct 882 ms 16540 KB Output is correct
54 Correct 546 ms 16656 KB Output is correct
55 Correct 41 ms 6016 KB Output is correct
56 Correct 29 ms 5732 KB Output is correct
57 Correct 253 ms 12024 KB Output is correct
58 Correct 61 ms 11628 KB Output is correct
59 Correct 936 ms 24972 KB Output is correct
60 Execution timed out 3106 ms 46552 KB Time limit exceeded
61 Halted 0 ms 0 KB -