oj.uz

답안 #674011

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
674011 2022-12-22T14:42:53 Z AmirElarbi 공장들 (JOI14_factories) C++14
100 / 100
 4471 ms 221556 KB 
#include <bits/stdc++.h>
#define vi vector<int>
#define ve vector
#define ll long long
#define vf vector<float>
#define vll vector<pair<ll,ll>>
#define ii pair<int,int>
#define pll pair<ll,ll>
#define vvi vector<vi>
#define vii vector<ii>
#define gii greater<ii>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define INF 1e18
#define eps 1e-7
#define eps1 1e-2
#define optimise ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define MAX_A 2e5+5
using namespace std;
int MOD = 1e9+7;
const int nax = 5e5+5;
const int nax2 = 200+5;
typedef complex<int> Point;
using cd = complex<double>;
const double PI = acos(-1);
#include"factories.h"
vii adj[nax];
bool vis[nax];
int sb[nax], par[nax];
ve<ll> dst[nax];
int dfs(int u, int p, bool type, ll cur){
    if(type){
        dst[u].pb(cur);
    }
    sb[u] = 1;
    for(auto x : adj[u]){
        if(x.fi == p || vis[x.fi]) continue;
        sb[u] += dfs(x.fi,u, type, cur+x.se);
    }
    return sb[u];
}
int getcent(int u, int p, int ms){
    for(auto x : adj[u]){
        if(vis[x.fi] || x.fi == p) continue;
        if(sb[x.fi]*2 > ms) return getcent(x.fi,u,ms);
    }
    return u;
}
void centdec(int u, int p){
    int c = getcent(u,u,dfs(u,u,0,0));
    dfs(c,c,1,0);
    vis[c] = 1, par[c] = p;
    for(auto x : adj[c]){
        if(vis[x.fi] || x .fi == p) continue;
        centdec(x.fi, c);
    }
}   
ll ans[nax];
void Init(int n, int a[], int b[], int d[]){
    for (int i = 0; i < n; ++i)
    {
        ans[i] = INF;
    }
    for (int i = 0; i < n-1; ++i)
    {
        adj[a[i]].pb({b[i], d[i]});
        adj[b[i]].pb({a[i], d[i]});
    }
    centdec(0,-1);
    for (int i = 0; i < n; ++i)
    {
        reverse(dst[i].begin(), dst[i].end());
    }
}
long long Query(int s, int x[], int t, int y[]){
    ll aff = INF;
    for (int i = 0; i < s; ++i)
    {
        int cur = x[i], cnt = 0;
        while(cur != -1){
            ans[cur] = min(ans[cur], dst[x[i]][cnt]);
            cur = par[cur], cnt++;
        }
    }
    for (int i = 0; i < t; ++i)
    {
        int cur = y[i], cnt = 0;
        while(cur != -1){
            aff = min(aff , ans[cur] + dst[y[i]][cnt]);
            cur = par[cur], cnt++;
        }
    }
    for (int i = 0; i < s; ++i)
    {
        int cur = x[i];
        while(cur != -1){
            ans[cur] = INF;
            cur = par[cur];
        }
    }
    return aff;
}

Subtask #1
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 24224 KB Output is correct
2 Correct 253 ms 33904 KB Output is correct
3 Correct 275 ms 33996 KB Output is correct
4 Correct 276 ms 33996 KB Output is correct
5 Correct 292 ms 34384 KB Output is correct
6 Correct 186 ms 33540 KB Output is correct
7 Correct 288 ms 33828 KB Output is correct
8 Correct 291 ms 33736 KB Output is correct
9 Correct 295 ms 34128 KB Output is correct
10 Correct 180 ms 33232 KB Output is correct
11 Correct 283 ms 33792 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 23904 KB Output is correct
2 Correct 2062 ms 130408 KB Output is correct
3 Correct 3066 ms 167008 KB Output is correct
4 Correct 686 ms 80280 KB Output is correct
5 Correct 3824 ms 221556 KB Output is correct
6 Correct 3067 ms 167936 KB Output is correct
7 Correct 862 ms 59596 KB Output is correct
8 Correct 313 ms 48924 KB Output is correct
9 Correct 991 ms 68024 KB Output is correct
10 Correct 858 ms 60780 KB Output is correct

Subtask #3
67.0 / 67.0

# 결과 실행 시간 메모리 Grader output
1 Correct 17 ms 24224 KB Output is correct
2 Correct 253 ms 33904 KB Output is correct
3 Correct 275 ms 33996 KB Output is correct
4 Correct 276 ms 33996 KB Output is correct
5 Correct 292 ms 34384 KB Output is correct
6 Correct 186 ms 33540 KB Output is correct
7 Correct 288 ms 33828 KB Output is correct
8 Correct 291 ms 33736 KB Output is correct
9 Correct 295 ms 34128 KB Output is correct
10 Correct 180 ms 33232 KB Output is correct
11 Correct 283 ms 33792 KB Output is correct
12 Correct 15 ms 23904 KB Output is correct
13 Correct 2062 ms 130408 KB Output is correct
14 Correct 3066 ms 167008 KB Output is correct
15 Correct 686 ms 80280 KB Output is correct
16 Correct 3824 ms 221556 KB Output is correct
17 Correct 3067 ms 167936 KB Output is correct
18 Correct 862 ms 59596 KB Output is correct
19 Correct 313 ms 48924 KB Output is correct
20 Correct 991 ms 68024 KB Output is correct
21 Correct 858 ms 60780 KB Output is correct
22 Correct 2266 ms 131040 KB Output is correct
23 Correct 2413 ms 134576 KB Output is correct
24 Correct 3561 ms 168280 KB Output is correct
25 Correct 3627 ms 172000 KB Output is correct
26 Correct 3600 ms 168968 KB Output is correct
27 Correct 4471 ms 217940 KB Output is correct
28 Correct 809 ms 84360 KB Output is correct
29 Correct 3675 ms 168312 KB Output is correct
30 Correct 3848 ms 167792 KB Output is correct
31 Correct 3708 ms 168708 KB Output is correct
32 Correct 1046 ms 68880 KB Output is correct
33 Correct 321 ms 49264 KB Output is correct
34 Correct 635 ms 55044 KB Output is correct
35 Correct 670 ms 55456 KB Output is correct
36 Correct 950 ms 58156 KB Output is correct
37 Correct 882 ms 58168 KB Output is correct