Submission #305079

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
305079	2020-09-22 14:23:19	MarcoMeijer	Stations (IOI20_stations)	C++14	100 / 100	1160 ms	24832 KiB

stations

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
#define REP(a,b,c) for(int a=int(b); a<int(c); a++)
#define REV(a,b,c) for(int a=int(c-1); a>=int(b); a--)
#define RE(a,b) REP(a,0,b)
#define FOR(a,b) for(auto& a:b)
#define pb push_back
#define fi first
#define se second
#define all(a) a.begin(), a.end()
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
const int INF=1e9;
const int MX=5e5;
int  M;
vi adj[MX];
vi lab;
void dfs(int u, int p=-1, bool pre=1) {
    if( pre) lab[u] = M++;
    FOR(v,adj[u]) if(v!=p) dfs(v,u,!pre);
    if(!pre) lab[u] = M++;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 8 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 61 / 61