oj.uz

Submission #964940

# Submission time Handle Problem Language Result Execution time Memory
964940 2024-04-17T18:13:49 Z Younis_Dwai Race (IOI11_race) C++14
21 / 100
 3000 ms 43860 KB 
#include "race.h"
#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
using namespace std ;
const int MN=1e6+1;
bitset<MN> vis;
int res,k;
vector<int> dp(MN),sz(MN);
vector<pair<int,int>> adj[MN];
void dfs_sz(int node , int par){
     sz[node]=1;
     for(auto u : adj[node]){
         if(vis[u.F] || u.F==par) continue ;
         dfs_sz(u.F,node);
     }
     return ;
}
int  get_centroid(int node ,int par , int d){
     for(auto u : adj[node]){
         if(vis[u.F] || u.F==par || sz[u.F]<=d) continue ;
         return get_centroid(u.F,node,d);
     }
     return node;
}
void dfs_calc(int node, int par , int done ,int dis){
     res=min(res,dp[k-dis]+done);
     for(auto u : adj[node]){
         if(u.F==par || vis[u.F] || dis+u.S>k) continue ;
         dfs_calc(u.F,node,done+1,dis+u.S);
     }
     return ;
}
void dfs_upd(int node , int par , int done , int dis){
     dp[dis]=min(done,dp[dis]);
     for(auto u : adj[node]){
         if(u.F==par || vis[u.F] || dis+u.S>k) continue ;
         dfs_upd(u.F,node,done+1,dis+u.S);
     }
     return ;
}
void dfs_fill(int node , int par ,int dis){
     if(dp[dis]!=1e9) dp[dis]=1e9;
     for(auto u : adj[node]){
         if(u.F==par || vis[u.F] || dis+u.S>k) continue ;
         dfs_fill(u.F,node,dis+u.S);
     }
     return ;
}
void dfs(int node){
     dfs_sz(node,node);
     int centroid=get_centroid(node,node,800);
     vis[centroid]=1;
     dp[0]=0;
     for(auto u : adj[centroid]){
         if(vis[u.F] || u.S>k) continue ;
         dfs_calc(u.F,centroid,1,u.S);
         dfs_upd(u.F,centroid,1,u.S);
     }
     for(auto u : adj[centroid]){
         if(u.S>k || vis[u.F]) continue ;
         dfs_fill(u.F,centroid,u.S);
     }
     for(auto u :  adj[centroid]){
         if(vis[u.F]) continue ;
         dfs(u.F);
     }
     return ;
}
int best_path(int N, int K, int H[][2], int L[]){
    res=1e9;
    k=K;
    for(int i=0;i<=K;i++) dp[i]=1e9;
    for(int i=0;i<N-1;i++){
        adj[H[i][0]].pb({H[i][1],L[i]});
        adj[H[i][1]].pb({H[i][0],L[i]});
    }
    dfs(0);
    if(res==1e9) return -1;
    else return res;
    return 0;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 35164 KB Output is correct
2 Correct 8 ms 35164 KB Output is correct
3 Correct 8 ms 35172 KB Output is correct
4 Correct 10 ms 35160 KB Output is correct
5 Correct 9 ms 35308 KB Output is correct
6 Correct 9 ms 35164 KB Output is correct
7 Correct 8 ms 35408 KB Output is correct
8 Correct 10 ms 35416 KB Output is correct
9 Correct 8 ms 35396 KB Output is correct
10 Correct 10 ms 35416 KB Output is correct
11 Correct 8 ms 35164 KB Output is correct
12 Correct 9 ms 35160 KB Output is correct
13 Correct 7 ms 35164 KB Output is correct
14 Correct 8 ms 35160 KB Output is correct
15 Correct 8 ms 35164 KB Output is correct
16 Correct 8 ms 35164 KB Output is correct
17 Correct 8 ms 35164 KB Output is correct
18 Correct 9 ms 35160 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 35164 KB Output is correct
2 Correct 8 ms 35164 KB Output is correct
3 Correct 8 ms 35172 KB Output is correct
4 Correct 10 ms 35160 KB Output is correct
5 Correct 9 ms 35308 KB Output is correct
6 Correct 9 ms 35164 KB Output is correct
7 Correct 8 ms 35408 KB Output is correct
8 Correct 10 ms 35416 KB Output is correct
9 Correct 8 ms 35396 KB Output is correct
10 Correct 10 ms 35416 KB Output is correct
11 Correct 8 ms 35164 KB Output is correct
12 Correct 9 ms 35160 KB Output is correct
13 Correct 7 ms 35164 KB Output is correct
14 Correct 8 ms 35160 KB Output is correct
15 Correct 8 ms 35164 KB Output is correct
16 Correct 8 ms 35164 KB Output is correct
17 Correct 8 ms 35164 KB Output is correct
18 Correct 9 ms 35160 KB Output is correct
19 Correct 8 ms 35164 KB Output is correct
20 Correct 8 ms 35160 KB Output is correct
21 Correct 10 ms 35420 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 9 ms 35200 KB Output is correct
24 Correct 9 ms 35420 KB Output is correct
25 Correct 10 ms 35408 KB Output is correct
26 Correct 8 ms 35456 KB Output is correct
27 Correct 9 ms 35452 KB Output is correct
28 Correct 8 ms 35420 KB Output is correct
29 Correct 9 ms 35416 KB Output is correct
30 Correct 9 ms 35416 KB Output is correct
31 Correct 9 ms 35416 KB Output is correct
32 Correct 9 ms 35416 KB Output is correct
33 Correct 10 ms 35420 KB Output is correct
34 Correct 11 ms 35416 KB Output is correct
35 Correct 13 ms 35420 KB Output is correct
36 Correct 12 ms 35428 KB Output is correct
37 Correct 11 ms 35452 KB Output is correct
38 Correct 10 ms 35416 KB Output is correct

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 35164 KB Output is correct
2 Correct 8 ms 35164 KB Output is correct
3 Correct 8 ms 35172 KB Output is correct
4 Correct 10 ms 35160 KB Output is correct
5 Correct 9 ms 35308 KB Output is correct
6 Correct 9 ms 35164 KB Output is correct
7 Correct 8 ms 35408 KB Output is correct
8 Correct 10 ms 35416 KB Output is correct
9 Correct 8 ms 35396 KB Output is correct
10 Correct 10 ms 35416 KB Output is correct
11 Correct 8 ms 35164 KB Output is correct
12 Correct 9 ms 35160 KB Output is correct
13 Correct 7 ms 35164 KB Output is correct
14 Correct 8 ms 35160 KB Output is correct
15 Correct 8 ms 35164 KB Output is correct
16 Correct 8 ms 35164 KB Output is correct
17 Correct 8 ms 35164 KB Output is correct
18 Correct 9 ms 35160 KB Output is correct
19 Correct 190 ms 41284 KB Output is correct
20 Correct 207 ms 41280 KB Output is correct
21 Correct 234 ms 41208 KB Output is correct
22 Correct 141 ms 41356 KB Output is correct
23 Correct 84 ms 41540 KB Output is correct
24 Correct 52 ms 41300 KB Output is correct
25 Execution timed out 3017 ms 43860 KB Time limit exceeded
26 Halted 0 ms 0 KB -

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 35164 KB Output is correct
2 Correct 8 ms 35164 KB Output is correct
3 Correct 8 ms 35172 KB Output is correct
4 Correct 10 ms 35160 KB Output is correct
5 Correct 9 ms 35308 KB Output is correct
6 Correct 9 ms 35164 KB Output is correct
7 Correct 8 ms 35408 KB Output is correct
8 Correct 10 ms 35416 KB Output is correct
9 Correct 8 ms 35396 KB Output is correct
10 Correct 10 ms 35416 KB Output is correct
11 Correct 8 ms 35164 KB Output is correct
12 Correct 9 ms 35160 KB Output is correct
13 Correct 7 ms 35164 KB Output is correct
14 Correct 8 ms 35160 KB Output is correct
15 Correct 8 ms 35164 KB Output is correct
16 Correct 8 ms 35164 KB Output is correct
17 Correct 8 ms 35164 KB Output is correct
18 Correct 9 ms 35160 KB Output is correct
19 Correct 8 ms 35164 KB Output is correct
20 Correct 8 ms 35160 KB Output is correct
21 Correct 10 ms 35420 KB Output is correct
22 Correct 9 ms 35420 KB Output is correct
23 Correct 9 ms 35200 KB Output is correct
24 Correct 9 ms 35420 KB Output is correct
25 Correct 10 ms 35408 KB Output is correct
26 Correct 8 ms 35456 KB Output is correct
27 Correct 9 ms 35452 KB Output is correct
28 Correct 8 ms 35420 KB Output is correct
29 Correct 9 ms 35416 KB Output is correct
30 Correct 9 ms 35416 KB Output is correct
31 Correct 9 ms 35416 KB Output is correct
32 Correct 9 ms 35416 KB Output is correct
33 Correct 10 ms 35420 KB Output is correct
34 Correct 11 ms 35416 KB Output is correct
35 Correct 13 ms 35420 KB Output is correct
36 Correct 12 ms 35428 KB Output is correct
37 Correct 11 ms 35452 KB Output is correct
38 Correct 10 ms 35416 KB Output is correct
39 Correct 190 ms 41284 KB Output is correct
40 Correct 207 ms 41280 KB Output is correct
41 Correct 234 ms 41208 KB Output is correct
42 Correct 141 ms 41356 KB Output is correct
43 Correct 84 ms 41540 KB Output is correct
44 Correct 52 ms 41300 KB Output is correct
45 Execution timed out 3017 ms 43860 KB Time limit exceeded
46 Halted 0 ms 0 KB -