Submission #119089

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
119089	2019-06-20 10:08:07	baluteshih	Teleporters (IOI08_teleporters)	C++14	100 / 100	517 ms	41468 KiB

teleporters

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#include <bits/stdc++.h>
#define jizz ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pb push_back
#define ET cout << "\n"
#define MEM(i,j) memset(i,j,sizeof i)
#define F first
#define S second
#define MP make_pair
#define ALL(v) v.begin(),v.end()
#define DB(a,s,e) {for(int i=s;i<e;++i) cout << a[i] << " ";ET;}
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
int to[2000005],cnt[2000005],pl[2000005],nxt[2000005];
pii tran[1000005];
const int INF=1e9,MAXC=2000001;
bitset<2000005> vis;
 
int main()
{jizz
  int n,m,all,ans=0;
  cin >> n >> m,all=2*n+1;
  MEM(pl,-1);
  for(int i=0;i<n;++i)
    cin >> tran[i].F >> tran[i].S,pl[tran[i].F]=i<<1,pl[tran[i].S]=i<<1|1;
  pl[MAXC]=all-1,to[all-1]=-1,vis[all-1]=1;
  for(int i=MAXC-1,ls=all-1;i>=0;--i)
    nxt[i]=ls,~pl[i]&&(ls=pl[i]);
 
 
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• Subtask 2: 5 / 5
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