Submission #230667

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
230667	2020-05-11 01:21:13	arbor	Factories (JOI14_factories)	C++14	100 / 100	5332 ms	148364 KiB

factories

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#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define lc (i << 1)
#define rc (i << 1 | 1)
using namespace std;
using ll = long long;
using pii = pair<int, int>;
const int MN = 5e5 + 5, LN = 17, MOD = 1e9 + 7, INF = 0x3f3f3f3f, BSZ = 320;
vector<pii> g[MN];
int sz[MN], par[MN], dep[MN], qid[MN], id = 1;
ll dis[20][MN], dp[MN];
bool vis[MN];
int get_sz(int u, int p) {
    sz[u] = 1;
    for (pii e : g[u]) if (e.first != p && !vis[e.first])
            sz[u] += get_sz(e.first, u);
    return sz[u];
}
int centroid(int u, int p, int s) {
    for (pii e : g[u]) if (e.first != p && !vis[e.first] && sz[e.first] > s / 2)
            return centroid(e.first, u, s);
    return u;
}
void dfs(int u, int p, ll d, int lvl) {
    dis[lvl][u] = d;
    for (pii e : g[u]) if (e.first != p && !vis[e.first])
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67