oj.uz

답안 #951068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
951068 2024-03-21T05:42:06 Z batsukh2006 경주 (Race) (IOI11_race) C++17
100 / 100
 684 ms 41844 KB 
#include "race.h"
#include<iostream>
#include<stdio.h>
#include<math.h>
#include<map>
#include<string>
#include<algorithm>
#include<vector>
#include<string.h>
#include<utility>
#include<set>
#include<cmath>
#include<queue>
#include<deque>
#include<functional>
#include<stack>
#include<limits.h>
#include<iomanip>
#include<unordered_map> 
#include<numeric>
#include<tuple>
#include<bitset>
using namespace std;
 
#define endl '\n'
#define ff first
#define ss second
// #define int long long
#define MOD 1000000007

int n,k;
int ans=1e9;
map<int,int> mp;
const int mxN=2e5+1;
const int mxM=1e6+1;
vector<bool> vis(mxN);
vector<pair<int,int> > v[mxN];
vector<int> sub(mxN),cnt(mxM);
void cal(int a, int p, int d, int w){
    if(mp.count(k-w)) ans=min(ans,d+mp[k-w]);
    for(auto node: v[a]){
        if(node.ff!=p&&!vis[node.ff]){
            cal(node.ff,a,d+1,w+node.ss);
        }
    }
}
void up(int a, int p, int d, int w){
    if(w<=k){
        if(mp.count(w)) mp[w]=min(mp[w],d);
        else mp[w]=d;
    }else{
        return;
    }
    for(auto node: v[a]){
        if(node.ff!=p&&!vis[node.ff]){
            up(node.ff,a,d+1,w+node.ss);
        }
    }
}
int dfs(int a, int p){
    sub[a]=1;
    for(auto node: v[a]){
        if(node.ff!=p&&!vis[node.ff]){
            sub[a]+=dfs(node.ff,a);
        }
    }
    return sub[a];
}
int find(int a, int p, int s){
    for(auto node: v[a]){
        if(node.ff!=p&&!vis[node.ff]&&sub[node.ff]>s/2){
            return find(node.ff,a,s);
        }
    }
    return a;
}
void build(int a, int p){
    int cd=find(a,p,dfs(a,p));
    vis[cd]=1;
    mp[0]=0;
    for(auto node: v[cd]){
        if(!vis[node.ff]){
            cal(node.ff,cd,1,node.ss);
            up(node.ff,cd,1,node.ss);
        }
    }
    for(auto x: mp) cnt[x.ff]=1e9;
    mp.clear();
    for(auto node: v[cd]){
        if(!vis[node.ff]) build(node.ff,cd);
    }
}
int best_path(int N, int K, int H[][2], int L[]){
    n=N;
    k=K;
    for(int i=0; i<n-1; i++){
        v[H[i][0]].push_back({H[i][1],L[i]});
        v[H[i][1]].push_back({H[i][0],L[i]});
    }
    build(1,-1);
    if(ans==1e9) return -1;
    return ans;
}
// signed main(){
//     // freopen("file.in", "r", stdin);
//     // freopen("file.out", "w", stdout);
//     ios::sync_with_stdio(0);
//     cin.tie(0);
//     cout.tie(0);
    
//     int T=1;
//     // cin>>T;
//     while(T--){
//         int N,K; cin>>N>>K;
//         int H[N][2],L[N];
//         for(int i=0; i<N-1; i++) cin>>H[i][0]>>H[i][1];
//         for(int i=0; i<N-1; i++) cin>>L[i];
//         cout<<best_path(N,K,H,L);
//     }
//     return 0;
// }

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 13404 KB Output is correct
2 Correct 4 ms 13404 KB Output is correct
3 Correct 4 ms 13404 KB Output is correct
4 Correct 4 ms 13404 KB Output is correct
5 Correct 4 ms 13404 KB Output is correct
6 Correct 3 ms 13460 KB Output is correct
7 Correct 3 ms 13404 KB Output is correct
8 Correct 3 ms 13404 KB Output is correct
9 Correct 4 ms 13404 KB Output is correct
10 Correct 3 ms 13404 KB Output is correct
11 Correct 3 ms 13404 KB Output is correct
12 Correct 3 ms 13404 KB Output is correct
13 Correct 3 ms 13404 KB Output is correct
14 Correct 3 ms 13404 KB Output is correct
15 Correct 3 ms 13404 KB Output is correct
16 Correct 4 ms 13404 KB Output is correct
17 Correct 3 ms 13408 KB Output is correct
18 Correct 3 ms 13404 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 13404 KB Output is correct
2 Correct 4 ms 13404 KB Output is correct
3 Correct 4 ms 13404 KB Output is correct
4 Correct 4 ms 13404 KB Output is correct
5 Correct 4 ms 13404 KB Output is correct
6 Correct 3 ms 13460 KB Output is correct
7 Correct 3 ms 13404 KB Output is correct
8 Correct 3 ms 13404 KB Output is correct
9 Correct 4 ms 13404 KB Output is correct
10 Correct 3 ms 13404 KB Output is correct
11 Correct 3 ms 13404 KB Output is correct
12 Correct 3 ms 13404 KB Output is correct
13 Correct 3 ms 13404 KB Output is correct
14 Correct 3 ms 13404 KB Output is correct
15 Correct 3 ms 13404 KB Output is correct
16 Correct 4 ms 13404 KB Output is correct
17 Correct 3 ms 13408 KB Output is correct
18 Correct 3 ms 13404 KB Output is correct
19 Correct 4 ms 13404 KB Output is correct
20 Correct 4 ms 13404 KB Output is correct
21 Correct 4 ms 13404 KB Output is correct
22 Correct 4 ms 13404 KB Output is correct
23 Correct 4 ms 13404 KB Output is correct
24 Correct 4 ms 13532 KB Output is correct
25 Correct 4 ms 13404 KB Output is correct
26 Correct 4 ms 13404 KB Output is correct
27 Correct 3 ms 13404 KB Output is correct
28 Correct 4 ms 13404 KB Output is correct
29 Correct 4 ms 13480 KB Output is correct
30 Correct 5 ms 13404 KB Output is correct
31 Correct 4 ms 13404 KB Output is correct
32 Correct 5 ms 13404 KB Output is correct
33 Correct 4 ms 13404 KB Output is correct
34 Correct 4 ms 13400 KB Output is correct
35 Correct 5 ms 13404 KB Output is correct
36 Correct 5 ms 13400 KB Output is correct
37 Correct 4 ms 13404 KB Output is correct
38 Correct 4 ms 13400 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 13404 KB Output is correct
2 Correct 4 ms 13404 KB Output is correct
3 Correct 4 ms 13404 KB Output is correct
4 Correct 4 ms 13404 KB Output is correct
5 Correct 4 ms 13404 KB Output is correct
6 Correct 3 ms 13460 KB Output is correct
7 Correct 3 ms 13404 KB Output is correct
8 Correct 3 ms 13404 KB Output is correct
9 Correct 4 ms 13404 KB Output is correct
10 Correct 3 ms 13404 KB Output is correct
11 Correct 3 ms 13404 KB Output is correct
12 Correct 3 ms 13404 KB Output is correct
13 Correct 3 ms 13404 KB Output is correct
14 Correct 3 ms 13404 KB Output is correct
15 Correct 3 ms 13404 KB Output is correct
16 Correct 4 ms 13404 KB Output is correct
17 Correct 3 ms 13408 KB Output is correct
18 Correct 3 ms 13404 KB Output is correct
19 Correct 154 ms 19296 KB Output is correct
20 Correct 144 ms 19288 KB Output is correct
21 Correct 150 ms 19288 KB Output is correct
22 Correct 144 ms 19464 KB Output is correct
23 Correct 76 ms 19628 KB Output is correct
24 Correct 65 ms 19292 KB Output is correct
25 Correct 118 ms 25912 KB Output is correct
26 Correct 83 ms 26680 KB Output is correct
27 Correct 148 ms 23136 KB Output is correct
28 Correct 229 ms 36524 KB Output is correct
29 Correct 245 ms 31316 KB Output is correct
30 Correct 150 ms 23124 KB Output is correct
31 Correct 148 ms 23124 KB Output is correct
32 Correct 199 ms 23096 KB Output is correct
33 Correct 223 ms 22096 KB Output is correct
34 Correct 143 ms 22100 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 13404 KB Output is correct
2 Correct 4 ms 13404 KB Output is correct
3 Correct 4 ms 13404 KB Output is correct
4 Correct 4 ms 13404 KB Output is correct
5 Correct 4 ms 13404 KB Output is correct
6 Correct 3 ms 13460 KB Output is correct
7 Correct 3 ms 13404 KB Output is correct
8 Correct 3 ms 13404 KB Output is correct
9 Correct 4 ms 13404 KB Output is correct
10 Correct 3 ms 13404 KB Output is correct
11 Correct 3 ms 13404 KB Output is correct
12 Correct 3 ms 13404 KB Output is correct
13 Correct 3 ms 13404 KB Output is correct
14 Correct 3 ms 13404 KB Output is correct
15 Correct 3 ms 13404 KB Output is correct
16 Correct 4 ms 13404 KB Output is correct
17 Correct 3 ms 13408 KB Output is correct
18 Correct 3 ms 13404 KB Output is correct
19 Correct 4 ms 13404 KB Output is correct
20 Correct 4 ms 13404 KB Output is correct
21 Correct 4 ms 13404 KB Output is correct
22 Correct 4 ms 13404 KB Output is correct
23 Correct 4 ms 13404 KB Output is correct
24 Correct 4 ms 13532 KB Output is correct
25 Correct 4 ms 13404 KB Output is correct
26 Correct 4 ms 13404 KB Output is correct
27 Correct 3 ms 13404 KB Output is correct
28 Correct 4 ms 13404 KB Output is correct
29 Correct 4 ms 13480 KB Output is correct
30 Correct 5 ms 13404 KB Output is correct
31 Correct 4 ms 13404 KB Output is correct
32 Correct 5 ms 13404 KB Output is correct
33 Correct 4 ms 13404 KB Output is correct
34 Correct 4 ms 13400 KB Output is correct
35 Correct 5 ms 13404 KB Output is correct
36 Correct 5 ms 13400 KB Output is correct
37 Correct 4 ms 13404 KB Output is correct
38 Correct 4 ms 13400 KB Output is correct
39 Correct 154 ms 19296 KB Output is correct
40 Correct 144 ms 19288 KB Output is correct
41 Correct 150 ms 19288 KB Output is correct
42 Correct 144 ms 19464 KB Output is correct
43 Correct 76 ms 19628 KB Output is correct
44 Correct 65 ms 19292 KB Output is correct
45 Correct 118 ms 25912 KB Output is correct
46 Correct 83 ms 26680 KB Output is correct
47 Correct 148 ms 23136 KB Output is correct
48 Correct 229 ms 36524 KB Output is correct
49 Correct 245 ms 31316 KB Output is correct
50 Correct 150 ms 23124 KB Output is correct
51 Correct 148 ms 23124 KB Output is correct
52 Correct 199 ms 23096 KB Output is correct
53 Correct 223 ms 22096 KB Output is correct
54 Correct 143 ms 22100 KB Output is correct
55 Correct 17 ms 14168 KB Output is correct
56 Correct 13 ms 13928 KB Output is correct
57 Correct 113 ms 19596 KB Output is correct
58 Correct 41 ms 20484 KB Output is correct
59 Correct 250 ms 30972 KB Output is correct
60 Correct 641 ms 41844 KB Output is correct
61 Correct 212 ms 24996 KB Output is correct
62 Correct 220 ms 25428 KB Output is correct
63 Correct 265 ms 25520 KB Output is correct
64 Correct 684 ms 28500 KB Output is correct
65 Correct 158 ms 26376 KB Output is correct
66 Correct 469 ms 35464 KB Output is correct
67 Correct 104 ms 27116 KB Output is correct
68 Correct 304 ms 29208 KB Output is correct
69 Correct 291 ms 27216 KB Output is correct
70 Correct 304 ms 29220 KB Output is correct