oj.uz

Submission #100401

# Submission time Handle Problem Language Result Execution time Memory
100401 2019-03-10T22:43:42 Z SuperJumbo Race (IOI11_race) C++14
43 / 100
 3000 ms 36088 KB 
 #include <bits/stdc++.h>
#define NMAX 500001
#define inf (INT_MAX>>2)
#define ll long long
#define add push_back
#define mp make_pair
#include "race.h"
using namespace std;
#define min(a,b) (a > b ? b : a) 
vector<pair<int,int>> g[NMAX];
int tot, k, ans; 
int sz[NMAX], cen[NMAX];
unordered_map<int,int> all,sub;
void dfs(int node,int par){
    sz[node] = 1;
    for(auto e:g[node]){
    	int x = e.first;
        if(x == par || cen[x] )continue;
        dfs(x,node);
        sz[node] += sz[x];
    }
    tot = max(tot,sz[node]);
}
int centroid(int node,int par){
    for(auto e:g[node]){
    	int x = e.first;
        if(x!=par && sz[x]> tot/2 && !cen[x]){
            return centroid(x,node);
        }
    }
    cen[node] = 1;
    return node;
}
void dfs2(int node, int par, int cc, int len){
	if(len == k) ans = min(ans, cc);
	if(len >= k) return;
	if(all[k-len]) ans = min(ans,all[k-len]+cc);
	if(!sub[len])  sub[len] = cc;
	sub[len] = min(sub[len],cc);
	for(auto e:g[node]){
		int x = e.first;
		if(!cen[x] && x != par)
			dfs2(x,node,cc+1,len + e.second);
	}
 
 
}
void dcmp(int node,int par){
    tot = 0;
    dfs(node,par);
    int c = centroid(node,par);
    all.clear();
    for(auto e :g[c]){
    	int x  = e.first;
    	if(cen[x])continue;
    	sub.clear();
    	dfs2(x,c,1,e.second);
    	for(auto u:sub) 
    		all[u.first] = all[u.first] == 0 ? u.second : min(all[u.first],u.second);
    }
    for(auto e:g[c]){
    	int x = e.first;
    	if(!cen[x]) dcmp(x,c);
    }
}
int best_path(int n,int K,int h[][2] ,int L[]) {
	k  = K;
    for(int i = 0 ;i<n-1;i++){
    	int u = h[i][0], v = h[i][1];
        g[u].add(mp(v,L[i]));g[v].add(mp(u,L[i]));
    }
    memset(cen,0,sizeof(cen));
    ans = inf;
    dcmp(0,-1);
  	ans = ans == inf ? -1: ans;
    return ans;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14080 KB Output is correct
2 Correct 13 ms 14080 KB Output is correct
3 Correct 13 ms 14080 KB Output is correct
4 Correct 13 ms 14080 KB Output is correct
5 Correct 13 ms 14048 KB Output is correct
6 Correct 15 ms 14080 KB Output is correct
7 Correct 13 ms 14080 KB Output is correct
8 Correct 13 ms 14080 KB Output is correct
9 Correct 15 ms 14080 KB Output is correct
10 Correct 14 ms 14080 KB Output is correct
11 Correct 13 ms 14080 KB Output is correct
12 Correct 14 ms 14208 KB Output is correct
13 Correct 13 ms 14080 KB Output is correct
14 Correct 13 ms 14080 KB Output is correct
15 Correct 14 ms 14080 KB Output is correct
16 Correct 14 ms 14080 KB Output is correct
17 Correct 14 ms 14080 KB Output is correct
18 Correct 14 ms 14080 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14080 KB Output is correct
2 Correct 13 ms 14080 KB Output is correct
3 Correct 13 ms 14080 KB Output is correct
4 Correct 13 ms 14080 KB Output is correct
5 Correct 13 ms 14048 KB Output is correct
6 Correct 15 ms 14080 KB Output is correct
7 Correct 13 ms 14080 KB Output is correct
8 Correct 13 ms 14080 KB Output is correct
9 Correct 15 ms 14080 KB Output is correct
10 Correct 14 ms 14080 KB Output is correct
11 Correct 13 ms 14080 KB Output is correct
12 Correct 14 ms 14208 KB Output is correct
13 Correct 13 ms 14080 KB Output is correct
14 Correct 13 ms 14080 KB Output is correct
15 Correct 14 ms 14080 KB Output is correct
16 Correct 14 ms 14080 KB Output is correct
17 Correct 14 ms 14080 KB Output is correct
18 Correct 14 ms 14080 KB Output is correct
19 Correct 13 ms 14080 KB Output is correct
20 Correct 14 ms 13996 KB Output is correct
21 Correct 17 ms 14080 KB Output is correct
22 Correct 16 ms 14208 KB Output is correct
23 Correct 14 ms 14052 KB Output is correct
24 Correct 14 ms 14080 KB Output is correct
25 Correct 16 ms 14208 KB Output is correct
26 Correct 17 ms 14080 KB Output is correct
27 Correct 14 ms 14080 KB Output is correct
28 Correct 15 ms 14180 KB Output is correct
29 Correct 16 ms 14208 KB Output is correct
30 Correct 16 ms 14208 KB Output is correct
31 Correct 17 ms 14208 KB Output is correct
32 Correct 16 ms 14208 KB Output is correct
33 Correct 16 ms 14208 KB Output is correct
34 Correct 15 ms 14080 KB Output is correct
35 Correct 16 ms 14080 KB Output is correct
36 Correct 17 ms 14080 KB Output is correct
37 Correct 16 ms 14220 KB Output is correct
38 Correct 15 ms 14208 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14080 KB Output is correct
2 Correct 13 ms 14080 KB Output is correct
3 Correct 13 ms 14080 KB Output is correct
4 Correct 13 ms 14080 KB Output is correct
5 Correct 13 ms 14048 KB Output is correct
6 Correct 15 ms 14080 KB Output is correct
7 Correct 13 ms 14080 KB Output is correct
8 Correct 13 ms 14080 KB Output is correct
9 Correct 15 ms 14080 KB Output is correct
10 Correct 14 ms 14080 KB Output is correct
11 Correct 13 ms 14080 KB Output is correct
12 Correct 14 ms 14208 KB Output is correct
13 Correct 13 ms 14080 KB Output is correct
14 Correct 13 ms 14080 KB Output is correct
15 Correct 14 ms 14080 KB Output is correct
16 Correct 14 ms 14080 KB Output is correct
17 Correct 14 ms 14080 KB Output is correct
18 Correct 14 ms 14080 KB Output is correct
19 Correct 311 ms 19316 KB Output is correct
20 Correct 272 ms 19344 KB Output is correct
21 Correct 298 ms 19320 KB Output is correct
22 Correct 275 ms 19448 KB Output is correct
23 Correct 152 ms 19576 KB Output is correct
24 Correct 147 ms 19656 KB Output is correct
25 Correct 286 ms 22076 KB Output is correct
26 Correct 211 ms 25132 KB Output is correct
27 Correct 328 ms 24824 KB Output is correct
28 Correct 534 ms 36088 KB Output is correct
29 Correct 539 ms 35316 KB Output is correct
30 Correct 327 ms 24824 KB Output is correct
31 Correct 328 ms 24696 KB Output is correct
32 Correct 331 ms 24696 KB Output is correct
33 Correct 593 ms 23800 KB Output is correct
34 Correct 341 ms 23544 KB Output is correct

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 14080 KB Output is correct
2 Correct 13 ms 14080 KB Output is correct
3 Correct 13 ms 14080 KB Output is correct
4 Correct 13 ms 14080 KB Output is correct
5 Correct 13 ms 14048 KB Output is correct
6 Correct 15 ms 14080 KB Output is correct
7 Correct 13 ms 14080 KB Output is correct
8 Correct 13 ms 14080 KB Output is correct
9 Correct 15 ms 14080 KB Output is correct
10 Correct 14 ms 14080 KB Output is correct
11 Correct 13 ms 14080 KB Output is correct
12 Correct 14 ms 14208 KB Output is correct
13 Correct 13 ms 14080 KB Output is correct
14 Correct 13 ms 14080 KB Output is correct
15 Correct 14 ms 14080 KB Output is correct
16 Correct 14 ms 14080 KB Output is correct
17 Correct 14 ms 14080 KB Output is correct
18 Correct 14 ms 14080 KB Output is correct
19 Correct 13 ms 14080 KB Output is correct
20 Correct 14 ms 13996 KB Output is correct
21 Correct 17 ms 14080 KB Output is correct
22 Correct 16 ms 14208 KB Output is correct
23 Correct 14 ms 14052 KB Output is correct
24 Correct 14 ms 14080 KB Output is correct
25 Correct 16 ms 14208 KB Output is correct
26 Correct 17 ms 14080 KB Output is correct
27 Correct 14 ms 14080 KB Output is correct
28 Correct 15 ms 14180 KB Output is correct
29 Correct 16 ms 14208 KB Output is correct
30 Correct 16 ms 14208 KB Output is correct
31 Correct 17 ms 14208 KB Output is correct
32 Correct 16 ms 14208 KB Output is correct
33 Correct 16 ms 14208 KB Output is correct
34 Correct 15 ms 14080 KB Output is correct
35 Correct 16 ms 14080 KB Output is correct
36 Correct 17 ms 14080 KB Output is correct
37 Correct 16 ms 14220 KB Output is correct
38 Correct 15 ms 14208 KB Output is correct
39 Correct 311 ms 19316 KB Output is correct
40 Correct 272 ms 19344 KB Output is correct
41 Correct 298 ms 19320 KB Output is correct
42 Correct 275 ms 19448 KB Output is correct
43 Correct 152 ms 19576 KB Output is correct
44 Correct 147 ms 19656 KB Output is correct
45 Correct 286 ms 22076 KB Output is correct
46 Correct 211 ms 25132 KB Output is correct
47 Correct 328 ms 24824 KB Output is correct
48 Correct 534 ms 36088 KB Output is correct
49 Correct 539 ms 35316 KB Output is correct
50 Correct 327 ms 24824 KB Output is correct
51 Correct 328 ms 24696 KB Output is correct
52 Correct 331 ms 24696 KB Output is correct
53 Correct 593 ms 23800 KB Output is correct
54 Correct 341 ms 23544 KB Output is correct
55 Correct 71 ms 14848 KB Output is correct
56 Correct 36 ms 14564 KB Output is correct
57 Correct 214 ms 19704 KB Output is correct
58 Correct 67 ms 19512 KB Output is correct
59 Execution timed out 3015 ms 33132 KB Time limit exceeded
60 Halted 0 ms 0 KB -