Submission #120224

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
120224	2019-06-24 01:56:09	joseacaz	Race (IOI11_race)	C++17	100 / 100	623 ms	35960 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
#define MAXN 200005
#define MAXK 1000005
#define INF (1 << 30)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
int N, K, H[MAXN][2], L[MAXN], dead[MAXN], sz[MAXN], DP[MAXK], vis[MAXK], C;
vector < pii > Graph[MAXN];
int precalc ( int node, int p = -1 )
{
  sz[node] = 1;
  for ( auto i : Graph[node] )
    if ( !dead[i.first] && i.first != p )
      sz[node] += precalc ( i.first, node );
  return sz[node];
}
int find_centroid ( int node, int siz, int p = -1 )
{
  for ( auto i : Graph[node] )
    if ( !dead[i.first] && i.first != p && 2 * sz[i.first] > siz )
      return find_centroid ( i.first, siz, node );
  return node;
}
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57