oj.uz

답안 #990184

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
990184 2024-05-29T19:53:52 Z hasan2006 경주 (Race) (IOI11_race) C++17
100 / 100
 754 ms 62800 KB 
#include "race.h"
#include <bits/stdc++.h>

using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 5e5 + 9 , mod = 1e9 + 7;
ll a[N] , b[N] , dp[N] , c[N] , d[N] , sz[N] , us[N];
vector<pair<int,int>>v[N];
int dfs_sz(int n , int par = 0){
    sz[n] = 1;
    for(auto to : v[n])
        if(!us[to.fi] && to.fi != par)
            sz[n] += dfs_sz(to.fi , n);
    return sz[n];
}
ll ans = 1e9 , k;
int get_centroid(int n , int par , int s){
    for(auto to : v[n])
        if(!us[to.fi] && to.fi != par && sz[to.fi] > s / 2)
            return get_centroid(to.fi , n , s);
    return n;
}
set<pair<ll,ll>>st,st1;
void dfs(int n , int par, ll dis  , ll cnt){
    st1.insert({dis , cnt});
    auto it = st.lower_bound({k - dis , 0});
    if(it != st.end() && it->fi == k - dis)
        ans = min(ans , cnt + it->se);
    for(auto to : v[n])
        if(!us[to.fi] && to.fi != par)
            dfs(to.fi , n , dis + to.se , cnt + 1);
}


void centroid(int n){
    int x = get_centroid(n , 0 , dfs_sz(n));
    us[x] = 1;
    st.clear();
    st.insert({0 , 0});
    for(auto to : v[x]){
        if(!us[to.fi]){
            st1.clear();
            dfs(to.fi , x , to.se , 1);
            for(auto it : st1)
                st.insert(it);
        }
    }
    for(auto to : v[x])
        if(!us[to.fi])
            centroid(to.fi);
}

int best_path(int N, int K,  int H[][2], int L[]){
    k = K;
    for(int i = 0; i < N - 1; i++) {
        int x = H[i][0] + 1,y = H[i][1] + 1;
        v[x].pb({y, L[i]});
        v[y].pb({x, L[i]});
    }
    centroid(1);
    if(ans > N)
        ans = -1;
    return ans;
}
// Author : حسن

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 2 ms 18780 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 3 ms 18776 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18776 KB Output is correct
11 Correct 3 ms 18776 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18780 KB Output is correct
14 Correct 3 ms 18780 KB Output is correct
15 Correct 3 ms 18776 KB Output is correct
16 Correct 3 ms 18876 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18780 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 2 ms 18780 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 3 ms 18776 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18776 KB Output is correct
11 Correct 3 ms 18776 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18780 KB Output is correct
14 Correct 3 ms 18780 KB Output is correct
15 Correct 3 ms 18776 KB Output is correct
16 Correct 3 ms 18876 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18780 KB Output is correct
19 Correct 3 ms 18776 KB Output is correct
20 Correct 3 ms 18780 KB Output is correct
21 Correct 3 ms 18780 KB Output is correct
22 Correct 4 ms 19036 KB Output is correct
23 Correct 4 ms 19036 KB Output is correct
24 Correct 3 ms 18780 KB Output is correct
25 Correct 4 ms 18776 KB Output is correct
26 Correct 4 ms 18952 KB Output is correct
27 Correct 3 ms 18776 KB Output is correct
28 Correct 4 ms 18776 KB Output is correct
29 Correct 4 ms 18780 KB Output is correct
30 Correct 4 ms 19028 KB Output is correct
31 Correct 4 ms 18780 KB Output is correct
32 Correct 4 ms 18780 KB Output is correct
33 Correct 4 ms 18780 KB Output is correct
34 Correct 4 ms 19036 KB Output is correct
35 Correct 4 ms 18780 KB Output is correct
36 Correct 3 ms 19024 KB Output is correct
37 Correct 4 ms 18780 KB Output is correct
38 Correct 5 ms 18780 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 2 ms 18780 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 3 ms 18776 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18776 KB Output is correct
11 Correct 3 ms 18776 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18780 KB Output is correct
14 Correct 3 ms 18780 KB Output is correct
15 Correct 3 ms 18776 KB Output is correct
16 Correct 3 ms 18876 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18780 KB Output is correct
19 Correct 181 ms 25028 KB Output is correct
20 Correct 182 ms 24984 KB Output is correct
21 Correct 172 ms 24980 KB Output is correct
22 Correct 149 ms 25004 KB Output is correct
23 Correct 243 ms 25424 KB Output is correct
24 Correct 97 ms 24920 KB Output is correct
25 Correct 331 ms 38112 KB Output is correct
26 Correct 258 ms 40588 KB Output is correct
27 Correct 204 ms 36176 KB Output is correct
28 Correct 704 ms 62800 KB Output is correct
29 Correct 697 ms 62296 KB Output is correct
30 Correct 210 ms 36688 KB Output is correct
31 Correct 265 ms 36832 KB Output is correct
32 Correct 227 ms 36444 KB Output is correct
33 Correct 307 ms 32588 KB Output is correct
34 Correct 558 ms 48208 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 18776 KB Output is correct
2 Correct 3 ms 18780 KB Output is correct
3 Correct 3 ms 18780 KB Output is correct
4 Correct 3 ms 18780 KB Output is correct
5 Correct 2 ms 18780 KB Output is correct
6 Correct 3 ms 18780 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 3 ms 18776 KB Output is correct
9 Correct 3 ms 18780 KB Output is correct
10 Correct 3 ms 18776 KB Output is correct
11 Correct 3 ms 18776 KB Output is correct
12 Correct 3 ms 18780 KB Output is correct
13 Correct 3 ms 18780 KB Output is correct
14 Correct 3 ms 18780 KB Output is correct
15 Correct 3 ms 18776 KB Output is correct
16 Correct 3 ms 18876 KB Output is correct
17 Correct 3 ms 18780 KB Output is correct
18 Correct 3 ms 18780 KB Output is correct
19 Correct 3 ms 18776 KB Output is correct
20 Correct 3 ms 18780 KB Output is correct
21 Correct 3 ms 18780 KB Output is correct
22 Correct 4 ms 19036 KB Output is correct
23 Correct 4 ms 19036 KB Output is correct
24 Correct 3 ms 18780 KB Output is correct
25 Correct 4 ms 18776 KB Output is correct
26 Correct 4 ms 18952 KB Output is correct
27 Correct 3 ms 18776 KB Output is correct
28 Correct 4 ms 18776 KB Output is correct
29 Correct 4 ms 18780 KB Output is correct
30 Correct 4 ms 19028 KB Output is correct
31 Correct 4 ms 18780 KB Output is correct
32 Correct 4 ms 18780 KB Output is correct
33 Correct 4 ms 18780 KB Output is correct
34 Correct 4 ms 19036 KB Output is correct
35 Correct 4 ms 18780 KB Output is correct
36 Correct 3 ms 19024 KB Output is correct
37 Correct 4 ms 18780 KB Output is correct
38 Correct 5 ms 18780 KB Output is correct
39 Correct 181 ms 25028 KB Output is correct
40 Correct 182 ms 24984 KB Output is correct
41 Correct 172 ms 24980 KB Output is correct
42 Correct 149 ms 25004 KB Output is correct
43 Correct 243 ms 25424 KB Output is correct
44 Correct 97 ms 24920 KB Output is correct
45 Correct 331 ms 38112 KB Output is correct
46 Correct 258 ms 40588 KB Output is correct
47 Correct 204 ms 36176 KB Output is correct
48 Correct 704 ms 62800 KB Output is correct
49 Correct 697 ms 62296 KB Output is correct
50 Correct 210 ms 36688 KB Output is correct
51 Correct 265 ms 36832 KB Output is correct
52 Correct 227 ms 36444 KB Output is correct
53 Correct 307 ms 32588 KB Output is correct
54 Correct 558 ms 48208 KB Output is correct
55 Correct 19 ms 20060 KB Output is correct
56 Correct 13 ms 19152 KB Output is correct
57 Correct 113 ms 25260 KB Output is correct
58 Correct 30 ms 25960 KB Output is correct
59 Correct 281 ms 40588 KB Output is correct
60 Correct 754 ms 62524 KB Output is correct
61 Correct 238 ms 40016 KB Output is correct
62 Correct 219 ms 36688 KB Output is correct
63 Correct 214 ms 36436 KB Output is correct
64 Correct 662 ms 46928 KB Output is correct
65 Correct 478 ms 47444 KB Output is correct
66 Correct 687 ms 58192 KB Output is correct
67 Correct 68 ms 34872 KB Output is correct
68 Correct 302 ms 46040 KB Output is correct
69 Correct 307 ms 44112 KB Output is correct
70 Correct 323 ms 45192 KB Output is correct