oj.uz

Submission #109552

# Submission time Handle Problem Language Result Execution time Memory
109552 2019-05-07T04:05:37 Z Erkhemkhuu Race (IOI11_race) C++17
43 / 100
 3000 ms 53476 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;
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;
}
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;
}
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;
}
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

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 9 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 4992 KB Output is correct
8 Correct 7 ms 5120 KB Output is correct
9 Correct 8 ms 5120 KB Output is correct
10 Correct 7 ms 5120 KB Output is correct
11 Correct 5 ms 4992 KB Output is correct
12 Correct 6 ms 4992 KB Output is correct
13 Correct 8 ms 5092 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 6 ms 5120 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 8 ms 4992 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 9 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 4992 KB Output is correct
8 Correct 7 ms 5120 KB Output is correct
9 Correct 8 ms 5120 KB Output is correct
10 Correct 7 ms 5120 KB Output is correct
11 Correct 5 ms 4992 KB Output is correct
12 Correct 6 ms 4992 KB Output is correct
13 Correct 8 ms 5092 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 6 ms 5120 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 8 ms 4992 KB Output is correct
19 Correct 7 ms 5120 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 9 ms 5120 KB Output is correct
22 Correct 9 ms 5120 KB Output is correct
23 Correct 8 ms 5120 KB Output is correct
24 Correct 28 ms 5120 KB Output is correct
25 Correct 11 ms 5248 KB Output is correct
26 Correct 8 ms 5132 KB Output is correct
27 Correct 7 ms 5120 KB Output is correct
28 Correct 10 ms 5120 KB Output is correct
29 Correct 10 ms 5120 KB Output is correct
30 Correct 9 ms 5376 KB Output is correct
31 Correct 15 ms 5376 KB Output is correct
32 Correct 11 ms 5248 KB Output is correct
33 Correct 11 ms 5248 KB Output is correct
34 Correct 10 ms 5248 KB Output is correct
35 Correct 10 ms 5120 KB Output is correct
36 Correct 9 ms 5120 KB Output is correct
37 Correct 12 ms 5120 KB Output is correct
38 Correct 9 ms 5120 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 9 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 4992 KB Output is correct
8 Correct 7 ms 5120 KB Output is correct
9 Correct 8 ms 5120 KB Output is correct
10 Correct 7 ms 5120 KB Output is correct
11 Correct 5 ms 4992 KB Output is correct
12 Correct 6 ms 4992 KB Output is correct
13 Correct 8 ms 5092 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 6 ms 5120 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 8 ms 4992 KB Output is correct
19 Correct 409 ms 11752 KB Output is correct
20 Correct 409 ms 11896 KB Output is correct
21 Correct 432 ms 11868 KB Output is correct
22 Correct 455 ms 11976 KB Output is correct
23 Correct 228 ms 12024 KB Output is correct
24 Correct 171 ms 12100 KB Output is correct
25 Correct 371 ms 15448 KB Output is correct
26 Correct 151 ms 19104 KB Output is correct
27 Correct 427 ms 18980 KB Output is correct
28 Correct 716 ms 33244 KB Output is correct
29 Correct 750 ms 32260 KB Output is correct
30 Correct 361 ms 18896 KB Output is correct
31 Correct 418 ms 18936 KB Output is correct
32 Correct 477 ms 19036 KB Output is correct
33 Correct 882 ms 17784 KB Output is correct
34 Correct 549 ms 18612 KB Output is correct

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 5120 KB Output is correct
3 Correct 8 ms 4992 KB Output is correct
4 Correct 9 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 4992 KB Output is correct
8 Correct 7 ms 5120 KB Output is correct
9 Correct 8 ms 5120 KB Output is correct
10 Correct 7 ms 5120 KB Output is correct
11 Correct 5 ms 4992 KB Output is correct
12 Correct 6 ms 4992 KB Output is correct
13 Correct 8 ms 5092 KB Output is correct
14 Correct 7 ms 5120 KB Output is correct
15 Correct 6 ms 5120 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 8 ms 4992 KB Output is correct
19 Correct 7 ms 5120 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 9 ms 5120 KB Output is correct
22 Correct 9 ms 5120 KB Output is correct
23 Correct 8 ms 5120 KB Output is correct
24 Correct 28 ms 5120 KB Output is correct
25 Correct 11 ms 5248 KB Output is correct
26 Correct 8 ms 5132 KB Output is correct
27 Correct 7 ms 5120 KB Output is correct
28 Correct 10 ms 5120 KB Output is correct
29 Correct 10 ms 5120 KB Output is correct
30 Correct 9 ms 5376 KB Output is correct
31 Correct 15 ms 5376 KB Output is correct
32 Correct 11 ms 5248 KB Output is correct
33 Correct 11 ms 5248 KB Output is correct
34 Correct 10 ms 5248 KB Output is correct
35 Correct 10 ms 5120 KB Output is correct
36 Correct 9 ms 5120 KB Output is correct
37 Correct 12 ms 5120 KB Output is correct
38 Correct 9 ms 5120 KB Output is correct
39 Correct 409 ms 11752 KB Output is correct
40 Correct 409 ms 11896 KB Output is correct
41 Correct 432 ms 11868 KB Output is correct
42 Correct 455 ms 11976 KB Output is correct
43 Correct 228 ms 12024 KB Output is correct
44 Correct 171 ms 12100 KB Output is correct
45 Correct 371 ms 15448 KB Output is correct
46 Correct 151 ms 19104 KB Output is correct
47 Correct 427 ms 18980 KB Output is correct
48 Correct 716 ms 33244 KB Output is correct
49 Correct 750 ms 32260 KB Output is correct
50 Correct 361 ms 18896 KB Output is correct
51 Correct 418 ms 18936 KB Output is correct
52 Correct 477 ms 19036 KB Output is correct
53 Correct 882 ms 17784 KB Output is correct
54 Correct 549 ms 18612 KB Output is correct
55 Correct 49 ms 6008 KB Output is correct
56 Correct 32 ms 5632 KB Output is correct
57 Correct 256 ms 11896 KB Output is correct
58 Correct 56 ms 11628 KB Output is correct
59 Correct 935 ms 28024 KB Output is correct
60 Execution timed out 3052 ms 53476 KB Time limit exceeded
61 Halted 0 ms 0 KB -