Submission #304977

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
304977	2020-09-22 10:16:36	arnold518	Stations (IOI20_stations)	C++14	100 / 100	1176 ms	1128 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
static const int MAXN = 1000;
static int N, K;
static vector<int> adj[MAXN+10];
static int L[MAXN+10], R[MAXN+10], D[MAXN+10];
static int ans[MAXN+10];
static int cnt;
void dfs(int now, int bef, int col)
{
  if(col) cnt++;
  L[now]=cnt;
  D[now]=col;
  for(int nxt : adj[now])
  {
    if(nxt==bef) continue;
    dfs(nxt, now, 1-col);
  }
  if(!col) cnt++;
  R[now]=cnt;
}
 
 
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Compilation message (stderr)

stations.cpp:11:15: warning: 'K' defined but not used [-Wunused-variable]
   11 | static int N, K;
      |               ^

• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61