oj.uz

Submission #60114

# Submission time Handle Problem Language Result Execution time Memory
60114 2018-07-23T16:52:58 Z naderjemel Race (IOI11_race) C++14
100 / 100
 1136 ms 98020 KB 
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define MAX_N 200000
#define MAX_K 1000000
vector<vector<pair<int,int> >  > adj;
int n,k,nn;
bool pross[MAX_N];
int sub[MAX_N],cnt;
int dist[MAX_K],book[MAX_K],bk,rs;
int dfs(int u, int p){nn++;
    sub[u]=0;
    for(pair<int,int> i:adj[u]){
        if(!pross[i.first] && i.first!=p){
            dfs(i.first,u);
            sub[u]+=1+sub[i.first];
        }
    }
    return sub[u];
}
int find(int u, int p){
    for(pair<int,int> i:adj[u]){
        if(!pross[i.fi] && i.fi!=p && sub[i.fi]>nn/2){
            return find(i.fi,u);
        }
    }
    return u;
}
void check(int u, int p, int ed, int d){
    if(d>k) return;
    if(book[k-d]==bk && dist[k-d]+ed<rs) rs=dist[k-d]+ed;
    if(d==k && ed<rs) rs=ed;
    for(pair<int,int> i:adj[u]){
        if(!pross[i.fi] && i.fi!=p){
            check(i.fi,u,ed+1,d+i.se);
        }
    }
}
void fill(int u, int p, int ed, int d){
    if(d>k) return;
    if(book[d]<bk){
        book[d]=bk;
        dist[d]=ed;
    }
    else dist[d]=min(ed,dist[d]);
    for(pair<int,int> i:adj[u]){
        if(!pross[i.fi] && i.fi!=p){
            fill(i.fi,u,ed+1,d+i.se);
        }
    }
}
void solve(int u){nn=0;
    dfs(u,-1);
    if(sub[u]<=1) return;
    int cnt=find(u,-1);
    bk++;
    for(pair<int,int> i:adj[cnt]){
        if(!pross[i.fi]){   
            check(i.fi,cnt,1,i.se);
            fill(i.fi,cnt,1,i.se);
        }
    }
    pross[cnt]=true;
    for(pair<int,int> i:adj[cnt]){   
        if(!pross[i.fi]){   
            solve(i.fi);
        }
    }
}
int best_path(int N, int K, int H[][2], int L[]){n=N; k=K;
    adj.resize(N+2,vector<pair<int,int> >());
    for(int i=0;i<N-1;i++){
        adj[H[i][0]].push_back(make_pair(H[i][1],L[i]));
        adj[H[i][1]].push_back(make_pair(H[i][0],L[i]));
    }rs=1e9;
    solve(0);
    if(rs==1e9) return -1;
    else return rs;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 612 KB Output is correct
3 Correct 3 ms 724 KB Output is correct
4 Correct 3 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 3 ms 756 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 2 ms 848 KB Output is correct
11 Correct 3 ms 848 KB Output is correct
12 Correct 4 ms 848 KB Output is correct
13 Correct 3 ms 848 KB Output is correct
14 Correct 3 ms 920 KB Output is correct
15 Correct 3 ms 920 KB Output is correct
16 Correct 2 ms 920 KB Output is correct
17 Correct 3 ms 920 KB Output is correct
18 Correct 3 ms 920 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 612 KB Output is correct
3 Correct 3 ms 724 KB Output is correct
4 Correct 3 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 3 ms 756 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 2 ms 848 KB Output is correct
11 Correct 3 ms 848 KB Output is correct
12 Correct 4 ms 848 KB Output is correct
13 Correct 3 ms 848 KB Output is correct
14 Correct 3 ms 920 KB Output is correct
15 Correct 3 ms 920 KB Output is correct
16 Correct 2 ms 920 KB Output is correct
17 Correct 3 ms 920 KB Output is correct
18 Correct 3 ms 920 KB Output is correct
19 Correct 3 ms 980 KB Output is correct
20 Correct 3 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 10 ms 5856 KB Output is correct
23 Correct 9 ms 5856 KB Output is correct
24 Correct 10 ms 6612 KB Output is correct
25 Correct 8 ms 6612 KB Output is correct
26 Correct 6 ms 6612 KB Output is correct
27 Correct 4 ms 6612 KB Output is correct
28 Correct 6 ms 6612 KB Output is correct
29 Correct 6 ms 6612 KB Output is correct
30 Correct 8 ms 6612 KB Output is correct
31 Correct 7 ms 6612 KB Output is correct
32 Correct 8 ms 6612 KB Output is correct
33 Correct 10 ms 6672 KB Output is correct
34 Correct 8 ms 6672 KB Output is correct
35 Correct 11 ms 7236 KB Output is correct
36 Correct 12 ms 7852 KB Output is correct
37 Correct 10 ms 7852 KB Output is correct
38 Correct 8 ms 7852 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 612 KB Output is correct
3 Correct 3 ms 724 KB Output is correct
4 Correct 3 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 3 ms 756 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 2 ms 848 KB Output is correct
11 Correct 3 ms 848 KB Output is correct
12 Correct 4 ms 848 KB Output is correct
13 Correct 3 ms 848 KB Output is correct
14 Correct 3 ms 920 KB Output is correct
15 Correct 3 ms 920 KB Output is correct
16 Correct 2 ms 920 KB Output is correct
17 Correct 3 ms 920 KB Output is correct
18 Correct 3 ms 920 KB Output is correct
19 Correct 221 ms 10356 KB Output is correct
20 Correct 241 ms 11800 KB Output is correct
21 Correct 213 ms 13056 KB Output is correct
22 Correct 268 ms 14640 KB Output is correct
23 Correct 172 ms 16176 KB Output is correct
24 Correct 144 ms 17612 KB Output is correct
25 Correct 326 ms 21448 KB Output is correct
26 Correct 164 ms 25816 KB Output is correct
27 Correct 313 ms 30848 KB Output is correct
28 Correct 559 ms 45264 KB Output is correct
29 Correct 684 ms 47468 KB Output is correct
30 Correct 308 ms 47468 KB Output is correct
31 Correct 301 ms 47468 KB Output is correct
32 Correct 403 ms 47468 KB Output is correct
33 Correct 543 ms 47764 KB Output is correct
34 Correct 495 ms 51528 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 504 KB Output is correct
2 Correct 3 ms 612 KB Output is correct
3 Correct 3 ms 724 KB Output is correct
4 Correct 3 ms 724 KB Output is correct
5 Correct 4 ms 724 KB Output is correct
6 Correct 3 ms 756 KB Output is correct
7 Correct 4 ms 760 KB Output is correct
8 Correct 2 ms 848 KB Output is correct
9 Correct 3 ms 848 KB Output is correct
10 Correct 2 ms 848 KB Output is correct
11 Correct 3 ms 848 KB Output is correct
12 Correct 4 ms 848 KB Output is correct
13 Correct 3 ms 848 KB Output is correct
14 Correct 3 ms 920 KB Output is correct
15 Correct 3 ms 920 KB Output is correct
16 Correct 2 ms 920 KB Output is correct
17 Correct 3 ms 920 KB Output is correct
18 Correct 3 ms 920 KB Output is correct
19 Correct 3 ms 980 KB Output is correct
20 Correct 3 ms 980 KB Output is correct
21 Correct 4 ms 980 KB Output is correct
22 Correct 10 ms 5856 KB Output is correct
23 Correct 9 ms 5856 KB Output is correct
24 Correct 10 ms 6612 KB Output is correct
25 Correct 8 ms 6612 KB Output is correct
26 Correct 6 ms 6612 KB Output is correct
27 Correct 4 ms 6612 KB Output is correct
28 Correct 6 ms 6612 KB Output is correct
29 Correct 6 ms 6612 KB Output is correct
30 Correct 8 ms 6612 KB Output is correct
31 Correct 7 ms 6612 KB Output is correct
32 Correct 8 ms 6612 KB Output is correct
33 Correct 10 ms 6672 KB Output is correct
34 Correct 8 ms 6672 KB Output is correct
35 Correct 11 ms 7236 KB Output is correct
36 Correct 12 ms 7852 KB Output is correct
37 Correct 10 ms 7852 KB Output is correct
38 Correct 8 ms 7852 KB Output is correct
39 Correct 221 ms 10356 KB Output is correct
40 Correct 241 ms 11800 KB Output is correct
41 Correct 213 ms 13056 KB Output is correct
42 Correct 268 ms 14640 KB Output is correct
43 Correct 172 ms 16176 KB Output is correct
44 Correct 144 ms 17612 KB Output is correct
45 Correct 326 ms 21448 KB Output is correct
46 Correct 164 ms 25816 KB Output is correct
47 Correct 313 ms 30848 KB Output is correct
48 Correct 559 ms 45264 KB Output is correct
49 Correct 684 ms 47468 KB Output is correct
50 Correct 308 ms 47468 KB Output is correct
51 Correct 301 ms 47468 KB Output is correct
52 Correct 403 ms 47468 KB Output is correct
53 Correct 543 ms 47764 KB Output is correct
54 Correct 495 ms 51528 KB Output is correct
55 Correct 19 ms 51528 KB Output is correct
56 Correct 19 ms 51528 KB Output is correct
57 Correct 222 ms 51528 KB Output is correct
58 Correct 69 ms 51528 KB Output is correct
59 Correct 181 ms 55408 KB Output is correct
60 Correct 1136 ms 75152 KB Output is correct
61 Correct 284 ms 75152 KB Output is correct
62 Correct 395 ms 75152 KB Output is correct
63 Correct 491 ms 75152 KB Output is correct
64 Correct 1041 ms 75152 KB Output is correct
65 Correct 407 ms 75920 KB Output is correct
66 Correct 985 ms 95284 KB Output is correct
67 Correct 211 ms 95284 KB Output is correct
68 Correct 438 ms 95284 KB Output is correct
69 Correct 490 ms 95592 KB Output is correct
70 Correct 456 ms 98020 KB Output is correct