Submission #143559

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
143559	2019-08-14 15:13:18	muradeyn	Split the Attractions (IOI19_split)	C++14	0 / 100	6 ms	4984 KiB

split

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#include "split.h"
#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
const int maxx = 200000;
int N , pos = -1 , par , cent;
int dp[maxx];
vector< pair<int,int> >spl;
vector<int>adj[maxx];
void dfs(int s,int p) {
    dp[s] = 1;
    bool f = true;
    for (int to : adj[s]) {
        if (to == p)continue;
        dfs(to , s);
        if (dp[to] >= spl[0].F) {
            if (pos == -1)pos = to , par = s;
            else if (dp[pos] > dp[to])pos = to , par = s;
        }
        f &= (dp[to] <= N / 2);
        dp[s] += dp[to];
    }
    f &= (N - dp[s] <= N / 2);
 
 
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