Submission #388906

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
388906	2021-04-13 09:36:58	saarang123	Factories (JOI14_factories)	C++17	100 / 100	6061 ms	171004 KiB

factories

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#include <bits/stdc++.h>
#ifndef saarang
#include "factories.h"
#endif
using namespace std;
const int mxn = 500 * 1000 + 3, lgn = 21;
vector<array<int, 2>> g[mxn];
int sz[mxn], par[mxn], dt[mxn], lvl[mxn];
long long d[mxn], ans[mxn], dist[lgn][mxn];
bool cent[mxn];
int n, m, cnt;
int dfssz(int v, int p = -1) {
    sz[v] = 1;
    for(auto &[u, w] : g[v]) if(u != p && !cent[u])
        sz[v] += dfssz(u, v);
    return sz[v];
}
int fcent(int v, int p = -1) {
    for(auto &[u, w] : g[v]) if(u != p && !cent[u])
        if(sz[u] > cnt / 2)
            return fcent(u, v);
    return v;
}
void fdist(int v, int p, int l) {
  for(auto &[u, w] : g[v]) if(u != p && !cent[u]) {
    dist[l][u] = dist[l][v] + w;
    fdist(u, v, l);
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67