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Submission #119083

# Submission time Handle Problem Language Result Execution time Memory
119083 2019-06-20T09:57:47 Z baluteshih Teleporters (IOI08_teleporters) C++14
95 / 100
 1000 ms 45628 KB 
#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];
pii tran[1000005],pl[2000005];
const int INF=1e9,MAXC=2000001;
priority_queue<int> pq;
bitset<2000005> vis;
 
int main()
{jizz
	int n,m,all,ans=0;
	cin >> n >> m,all=2*n+1;
	for(int i=0;i<n;++i)
		cin >> tran[i].F >> tran[i].S,pl[i<<1]=MP(tran[i].F,i<<1),pl[i<<1|1]=MP(tran[i].S,i<<1|1);
	pl[all-1]=MP(MAXC,all-1),to[all-1]=-1,vis[all-1]=1;
	sort(pl,pl+all);
	for(int i=0;i<n;++i)
	{
		to[i<<1]=upper_bound(pl,pl+all,MP(tran[i].S,INF))->S;
		to[i<<1|1]=upper_bound(pl,pl+all,MP(tran[i].F,INF))->S;
	}
	for(int i=pl[0].S;!vis[i];i=to[i])
		vis[i]=1,++ans;
	for(int i=0;i<all;++i)
		if(!vis[i])
		{
			int tmp=0;
			for(int j=i;!vis[j];j=to[j])
				vis[j]=1,++tmp;
			pq.push(tmp);
		}
	while(!pq.empty()&&m>0)
		ans+=pq.top()+2,pq.pop(),--m;
	if(m&1)
		cout << ans+(m-1)*2+1 << "\n";
	else
		cout << ans+m*2 << "\n";
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 512 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #9
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #10
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #11
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct

Subtask #12
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 512 KB Output is correct
2 Correct 8 ms 768 KB Output is correct

Subtask #13
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 512 KB Output is correct
2 Correct 8 ms 1024 KB Output is correct
3 Correct 28 ms 1600 KB Output is correct

Subtask #14
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 896 KB Output is correct

Subtask #15
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1152 KB Output is correct

Subtask #16
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 94 ms 6336 KB Output is correct
2 Correct 251 ms 14744 KB Output is correct

Subtask #17
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 169 ms 10616 KB Output is correct
2 Correct 405 ms 21652 KB Output is correct

Subtask #18
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 543 ms 31264 KB Output is correct
2 Correct 735 ms 35824 KB Output is correct
3 Correct 796 ms 40048 KB Output is correct

Subtask #19
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 911 ms 39856 KB Output is correct
2 Correct 990 ms 42104 KB Output is correct
3 Correct 939 ms 40952 KB Output is correct
4 Correct 976 ms 41392 KB Output is correct

Subtask #20
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1063 ms 45628 KB Time limit exceeded
2 Halted 0 ms 0 KB -